SOJABOON KULTIVARAANBEVELINGS SOYBEAN CULTIVAR RECOMMENDATIONS 2014 / 2015

Transcription

1 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 AS de Beer & N de Klerk LNR nstituut vir Graangewasse, Potchefstroom ARCGrain Crops nstitute, Potchefstroom H A oewel sojabone ʼn gewas is wat bykans wêreldwyd verbou word, het individuele kultivars ʼn beperkte saanpassing. Gevolglik sal die kultivar wat die beste aangepas is vir ʼn gegewe lokaliteit, dié een wees wat oor ʼn aantal jare die hoogste en saadkwaliteit lewer. Onder vergelykbare omgewingstoestande en produksiepraktyke kan ʼn seleksie uit kultivars gemaak word wat ʼn hoë en ʼn meer akkurate oessekerheidswaarde het. Die Nasionale Sojaboonkultivarproewe van die LNRnstituut vir Graangewasse en verskeie medewerkers lewer in die opsig waardevolle inligting ten opsigte van verskillende produksie s in SuidAfrika. lthough soybeans as a crop are grown worldwide, individual cultivars demonstrates a limited adaptation to specific geographical s. The best adapted cultivar is therefore the one that will, in the long term, give the best yield and quality for a specific locality within a specific geographical. A selection can be made of cultivars with high yield and optimal yield reliability under comparable environmental conditions as well as production practises. The National Soybean Cultivar Trials conducted by the ARCGrain Crops nstitute and several collaborators render a valuable service in identifying such cultivars for different production s in South Africa. MPORTANT NFORMATON FOR CULTVAR CHOCE BELANGRKE NLGTNG VR KULTVARKEUSE The length of the growing season is the most important characteristic to take into consideration in terms of cultivar choice for soybean. Unlike the other most commonly cultivated crops, soybean are sensitive to day length and a given cultivar will Die belangrikste inligting wat in ag geneem moet word ten opsigte van kultivarkeuse by sojabone, is lengte van groeiseisoen. Anders as by die meeste algemeen verboude gewasse, is LNRnstituut vir Graangewasse ARCGrain Crops nstitute

2 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS sojabone gevoelig vir daglengte en sal ʼn gegewe kultivar al hoe later ryp word hoe verder suid dit in Suider Afrika geplant word. Vir dieselfde rede sal plantdatum ook die lengte van die groeiseisoen beïnvloed en sal ʼn gegewe kultivar heelwat gouer blom by ʼn later plantdatum. Heersende temperatuur (veral nagtemperatuur) het ook ʼn invloed en sojabone groei heelwat stadiger op die hoëveld, vergeleke met die er laeveld. Tabel illustreer die invloed wat die lengte van groeiseisoene het ten opsigte van die verskillende kultivars asook vir ʼn spesifieke kultivar in verskillende produksiee. Dit is belangrik om te onthou dat vroeë en later plantdatums binne dieselfde ook die groeiseisoenlengte van ʼn kultivar beïnvloed. ripen later and result in a longer growing season the further south it is planted in Southern Africa. Planting dates will therefore also influence the length of the growing season and a given cultivar will flower much earlier should it be planted at a later planting date. Prevailing temperature also has an effect, with soybean growing much slower on the compared to the er Lowveld. Table illustrates the substantial variation for length of growing season among cultivars as well as for the different production s. Producers well experienced in soybean cultivation can utilize the photoperiod sensitivity of soybean, along with the genetic variation for relative length of the growing season with great success, for example, for hay production (a long growing season cultivar can be used), for scheduling of harvesting (plant cultivars with different ripening dates) and for drought avoidance or emergency planting (use relatively short growing season cultivars). For producers with little or no experience in soybean cultivation, this characteristic could prove to be hazardous when the wrong cultivar choice is made and optimal yield is not realised because a) the cultivar does not ripen where a too long grower has been planted for the, b) is ready for harvesting while rain and high temperatures hamper harvesting and adversely affect quality where a too short grower has been planted for the, and c) the cultivar is unable to be harvested because of a too low pod height. Vir produsente met ondervinding van sojaboonproduksie kan die gevoeligheid vir daglengte en die genetiese variasie vir relatiewe groeiseisoenlengte, met vrug gebruik word vir byvoorbeeld hooiproduksie (gebruik van lang groeiseisoen kultivars), stroopskedulering (plant kultivars met verskillende rypword datums) en vir droogte ontwyking of noodaanplantings (kultivars met ʼn relatief kort groeiseisoen). Vir produsente wat nie ondervinding het van sojaboonproduksie nie, kan dié eienskap ook by wyse van verkeerde kultivarkeuse tot gevolg hê dat die sojabone, a) nie wil ryp word nie in die geval van waar ʼn kultivar met ʼn te lang groeiseisoen in die aangeplant is, b) reeds oesgereed is terwyl reën en hoë temperature stroop bemoeilik en kwaliteit benadeel waar ʼn kultivar met ʼn te kort groeiseisoen vir ʼn gekies is en c) onstroopbaar is as gevolg van ʼn te lae peulhoogte. Procedure for Cultivar choice using length of growing season: Localities where soybean trials were conducted during the past season were divided into, moderate and cool production s (Table ). When cultivar selections is been done it is important to establish which localities has the same climate conditions and to use these Tables representing the same region. Risk can be minimised if Tables and are utilised. t is generally accepted that cultivars with a longer growing season will perform better in the er growing s, cultivars with a medium growing season in the moderate growing s and cultivars with a shorter growing season in the cooler production s. There are however exceptions to the rule and it is therefore recommended to also use yield performance and cultivar adaptation presented in Tables, 5,,, 8 and 9 in combination with length of growing season during cultivar selection for a specific. Prosedure vir kultivarkeuse op grond van groeiseisoenlengte is dan as volg: Die lokaliteite waar sojaboonkultivarproewe uitgevoer is, is gegroepeer om, matigen koel e aan te dui (Tabel ). Wanneer daar ʼn kultivar keuse gemaak word is dit belangrik om die te identifiseer wat dieselfde klimaatstoestande het en dan die Tabelle te gebruik wat dieselfde klimaatstreek verteenwoordig. Risiko kan geminimaliseer word wanneer Tabel en gebruik word. As algemene reël word aanvaar dat kultivars met ʼn langer groeiseisoen die beste sal doen in e met ʼn er klimaat, medium groeiseisoen kultivars in e met ʼn gematigde klimaat en korter groeiseisoen kultivars in e met ʼn koeler klimaat. Dit is egter belangrik om te onthou dat daar ook uitsonderings op die reël is en daarom word aanbeveel dat sowel LNRnstituut vir Graangewasse / 5 ARCGrain Crops nstitute

3 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS Planting date influences the adaptation of soybean cultivars and therefore also cultivar choice. The optimum planting date is usually during November. n er s though, soybean can be planted until the first week of January. With later planting dates narrow rows, higher plant populations and shorter growing season cultivars are recommended. A planting date during October, especially in s with a higher altitude, will be recommended where soil and air temperatures reach acceptable levels early in the growing season. Planting at an earlier or later planting date will affect cultivar choice. en aanpassingsvermoë van kultivars soos aangedui in Tabelle, 5,,, 8 en 9 saam met groeiseisoenlengte gebruik sal word om ʼn meer akkurate kultivarkeuse vir ʼn spesifieke te maak. Plantdatum beïnvloed sojabone se aanpassing en gevolglik kultivarkeuse. Die optimale plantdatum is normaalweg tydens November. n er e kan produsente egter tot die eerste week in Januarie nog plant, maar dan word nouer rywydte, hoër plantpopulasie en ʼn vinnigergroeiende kultivar aanbeveel. Waar grond en lugtemperature aanvaarbare vlakke vroeg in die seisoen bereik, word ʼn Oktober plantdatum, veral op die hoërliggende e aanbeveel. Dit is belangrik om te onthou dat ʼn vroeër of ʼn later plantdatum in al die produksiee kultivarkeuse kan beïnvloed. Pod and plant height have an impact on the ability to harvest the crop, and are characteristics that should be taken into account during deciding on what cultivar to plant. A relationship exists between pod and plant height and relative length of the growing season. Cultivars with a shorter growing season tend to have lower plant and pod heights compared to longer growing season cultivars under similar growing conditions. Both characteristics are also influenced by production practices. More narrow inter and intra row spacing will increase pod height significantly. Pod clearance for the cultivars evaluated is reported in Table. Peul en planthoogte beïnvloed die stroopbaarheid en die staanvermoë van sojabone en is faktore wat in ag geneem moet word by kultivarkeuse. Oor die algemeen is daar ʼn verband tussen peul en planthoogte en relatiewe lengte van die groeiseisoen. Relatief kort groeiseisoenkultivars het gewoonlik ʼn laer peul en planthoogte as langgroeiseisoenkultivars onder vergelykbare toestande. Beide eienskappe word egter ook deur produksiepraktyke beïnvloed. ʼn Nouer tussenry en binnery spasiëring sal peulhoogte betekenisvol verhoog. n die Nasionale Kultivarproewe word by gestandardiseerde toestande vir peulhoogte geëvalueer en kan kultivars met aanvaarbare peulhoogtes gekies word. Peulhoogte word aangedui in Tabel. Standability is influenced by the number of overcast days experienced during the growing season. Plant height tends to increase when overcast weather occurs and could result in a higher lodging percentage of plants. Growth habit distinguishes between determinate and indeterminate genotypes. Cultivars with a determinate growth habit are preferably planted under irrigation, while indeterminate cultivars (that do not stop vertical growth during flowering) are preferred under dry land conditions. Growth habit for registered cultivars is indicated in Table. Staanvermoë kan beïnvloed word deur die aantal bewolkte dae wat tydens die seisoen voorkom. Dit kan tot gevolg hê dat kultivars wat normaalweg goed staan, hoër groei en dus word die risiko van omval verhoog. Groeiwyse onderskei tussen bepaalde en onbepaalde groeiers. Kultivars met ʼn bepaalde groeiwyse word verkieslik onder besproeiing geplant, terwyl kultivars met ʼn onbepaalde groeiwyse (wat nie lengtegroei tydens blom staak nie) onder droëlandtoestande verkies word. Die groeiwyse van die kultivars word in Tabel aangedui. Row width will also influences cultivar selection, since a signifycant relation exists between cultivars and row width. Cultivars with more side branches and leaves are better adapted to wider rows, while cultivars with less side branches and leaves are better adapted to more narrow rows. Resistance against seed shattering can play an important role during unfavourable harvesting conditions. nformation obtained during the National Soybean Cultivar Trials indicates that cultivars with a relative short growing period Rywydte kan ook kultivarkeuse beïnvloed aangesien ʼn betekenisvolle interaksie tussen die twee bestaan. Kultivars wat geneig is tot sytakvorming en ʼn digte blaredak het, is beter LNRnstituut vir Graangewasse / 5 ARCGrain Crops nstitute

4 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS aangepas in wye rye, terwyl kultivars met ʼn oop blaredak en min sytakke, beter aangepas is by relatief nouer rywydtes. tend to shatter more than cultivars with a longer growing period. Rating of cultivars in terms of their susceptibility to shattering are done on a scale from (good) to 5 (poor) and are presented in Table. Weerstand teen oopspring van peule kan ʼn belangrike rol speel tydens ongunstige toestande gedurende die oes van sojabone Sensitivity to herbicides can, in some cases, influence the choice of a cultivar. No soybean is resistant to the atrazine type herbicides and the full waiting period have to be maintained before the planting of soybean can be considered. Ensure, in any case, that the herbicide can be used with the selected cultivar as indicated on the herbicide label. Volgens inligting uit die Nasionale Kultivarproewe is dit duidelik dat relatief kort groeiseisoenkultivars die grootste risiko vir oopspring het, terwyl relatief lang groeiseisoenkultivars die minste daardeur geraak word. ʼn Aanduiding ten opsigte van genetiese weerstand tussen kultivars van dieselfde groeiseisoenlengte wat oopspring aanbetref, kon egter nie verkry word nie. Kultivars word geëvalueer op ʼn skaal van (goed) tot 5 (swak) wat oopspring aanbetref en die resultate word in Tabel aan. Seed size, hilum colour, protein qualities and GMO status are characteristics that can possibly earn a premium price. Seed size is genetically regulated, but is greatly influenced by the environment conditions. Favourable conditions during the seed filling period will positively influence seed size. The protein content of soybean seed is also genetically regulated and can be adversely affected by environmental conditions (rainfall, temperature, stress) and crops management (poor or no nodulating, acidic soil and low soil fertility). Protein contents of soybean seed below % are unsatisfactory, while that above %, on a moisture free basis, is regarded as excellent. Gevoeligheid vir onkruiddoder kan in sommige gevalle kultivarkeuse beïnvloed. Geen sojaboonkultivar is bestand teen die atrazinetipe onkruiddoders nie en die volle wagperiode moet nagekom word voordat die plant van sojabone oorweeg word. n alle gevalle moet seker gemaak word dat aanwysings op die onkruiddoderetiket voorsiening maak vir die kultivar wat aangeplant gaan word. Saadgrootte, hilumkleur, proteïengehalte en GMO status is eienskappe waarop ʼn premieprys moontlik betaal kan word. Saadgrootte is geneties, maar word sterk beïnvloed deur omgewingstoestande. Gunstige toestande tydens die saadvulperiode sal saadgrootte positief beïnvloed. Seed yield indicates the genetic adaptation and suitability of a cultivar to be planted in a specific. During the / season cultivars were included in the National Soybean Cultivar Trials, while data of 9 localities were acceptable for statistical analyses. Yield of the cultivars at the different localities for the / and / growing season is presented in Tables 5, and 9. Proteïeninhoud van die saad is ook geneties maar kan nadelig beïnvloed word deur omgewingstoestande (reënval, temperatuur en stremming) en bestuur (swak of geen nodulering, suur grond en lae grondvrugbaarheid). Proteïeninhoud (vogvrye basis) onder % is onbevredigend en bokant % is uitstekend wat sojabone aanbetref. t is recommended to use the yield results with the yield reliable values for a more accurate cultivar choice. Saad gee ʼn aanduiding van ʼn kultivar se genetiese aanpassing en geskiktheid vir ʼn bepaalde. Vir die / seisoen is kultivars geplant en geëvalueer en was die data van 9 proewe aanvaarbaar vir statistiese analises. Tabelle 5, en 9 bevat inligting aangaande die van die kultivars vir die / en / produksieseisoen op die onderskeie lokaliteite. Gebruik die data saam met die oessekerheidstabelle om u kultivarkeuse te maak. LNRnstituut vir Graangewasse / 5 Yield reliability values of the 9 cultivars for the three production s (, moderate and cool) are presented in Tables & and 8. Tables, and 8 contain information regarding cultivars included in the trials for three and two years respectively. t is also important to use the information provided in Table to determine whether the to be planted corresponds with the, moderate or cool localities. Use the selected yield reliability table (, moderate or ARCGrain Crops nstitute

5 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS Die oessekerheidswaardes van die 5 kultivars vir die drie verbouingse (, matig en koud) word in Tabelle & en 8 aan. Tabelle, en 8 bevat inligting oor kultivars wat vir onderskeidelik drie jaar in dié proewe ingesluit was. Dit is belangrik dat u die verdeling van lokaliteite in Tabel gebruik om te bepaal in watter u plaas geleë is. Vergelyk dan die kultivars in die oessekerheidstabel wat u gekies het met mekaar by die realistiese mikpunt vir u plaas. cool) to select cultivars for the yield potential of the specific farm. Cultivar planning A valuable aid in cultivar planning is the yield reliability values, which are the deviations from the regression graph of a cultivar. The yield reliability values are obtained from the lower reliability band of the regression graph at a 9% probability level. This means that the yield reliability value of a particular cultivar at a given potential is the minimum yield, which can be obtained in nine out of ten seasons. n the calculation of yield reliability values (yield) the yield tendency, average yield and stability are taken into consideration. Kultivarbeplanning ʼn Waardevolle hulpmiddel by kultivarbeplanning is die oessekerheidswaardes, wat ʼn afleiding is van inligting wat deur die regressiegrafiek van ʼn kultivar uitgebeeld word. Hierdie oessekerheidswaardes word verkry van die onderste betroubaarheidsband van die regressiegrafiek by ʼn 9% waarskynlikheidspeil. Dit beteken dat die oessekerheidswaarde van ʼn kultivar by ʼn sekere potensiaal die minimum is wat daardie kultivar in nege uit tien gevalle kan behaal. By die berekening van oessekerheidswaardes (te) word die geneigdheid, gemiddelde en stabiliteit in ag geneem. n the yield reliability tables the following information is presented: Firstly, the yield reliability values at different yield potential levels are shown. Secondly, the average yield of the cultivar for the set of trials used is presented. Lastly, the yield stability is indicated by the D²values. With D²values approaching zero, the cultivar can be expected to be more stable and predictable in terms of yield achievement, and the greater the D²values are, the more the yield would vary between seasons. n die oessekerheidstabelle word die volgende inligting verskaf: Eerstens word die oessekerheids waardes by verskillende potensiaaltoestande aangetoon. Tweedens volg die gemiddelde van die kultivar vir die stel proewe wat gebruik is. Laastens volg die tabiliteit wat deur die D²waarde aangedui word. Hoe meer die D²waarde neig na nul, hoe meer stabiel en voorspelbaar is die kultivar in terme van, en hoe groter die D²waarde is hoe meer sal tussen seisoene wissel. The procedure to be followed in the making of cultivar recommendations is briefly as follows: Determine for which yield potential recommendations must be made. This must be done by the producer (farmer). The next step is to consult the yield reliability table at the determined yield potential. Select at the chosen yield potential those cultivars with the highest yield reliability values. The cultivars with the highest values should provide one with the best chance for a stable, successful yield. Die prosedure wat gevolg word vir die maak van kultivaraanbevelings is kortliks as volg: Eerstens moet vasgestel word vir watter potensiaal aanbevelings gemaak word. Die produsent moet homself vergewis van die potensiaal wat ter sprake is. Die tweede stap is om die oessekerheidstabel te raadpleeg by die vasgestelde potensiaal. Selekteer by die gekose potensiaal daardie kultivars met die hoogste oessekerheidswaardes. Die kultivars met die hoogste waardes behoort vir u die beste kans op ʼn stabiele, suksesvolle te verseker. ndien verdere verfyning in die keuse nodig is, kan die stabiliteit (D) gebruik word. LNRnstituut vir Graangewasse / 5 5 ARCGrain Crops nstitute

6 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 Tabel : G emiddelde aantal dae tot 5% blom en oesrypheid van kultivars gedurende die / groeiseisoen vir, matig en koue produksiee. Table : Average number of days to 5 % flowering and harvesting of cultivars during the / growing season for, moderate and cool production s. Kultivar/ Cultivar Dae tot 5% blom/days to 5% flowering Warm/Warm Matig/ Moderate Koel/ Cool Warm/ Warm Matig/Moderate5 Koel/Cool R R R 5 R 9 Y 8 R 8 R Y R 58 R 5 R R Y R 5 R 5 R 5 R S //E R R R R DM i RR R R bis 9 R 5 Dae tot oes/days to harvest Gemiddeld van lokaliteite / average of localities Gemiddeld van 5 lokaliteit / average of 5 locality Gemiddeld van 8 lokaliteite / average of 8 localities Gemiddeld van 8 lokaliteite / average of 8 localities Gemiddeld van lokaliteite / average of localities Gemiddeld van 5 lokaliteite / average of 5 localities Dae tot blom Gemiddeld 5% van die plante het een blom/days to flowering Average of 5% of plants with one flower Dae tot oes Gemiddeld van alle peule is volwasse, bros en droog/days to harvest Average of pods is mature, brittle and dry Tabel : G roepering van lokaliteite volgens, matige en koue produksiee gedurende die / groeiseisoen. Table : G rouping of localities according to, moderate and cool production s during the / growing season. Warm / Warm Brits (B/) NW Groblersdal (B/) L Rustenburg (B/) NW Vaalharts (B/) NC Matig / Moderate Koel / Cool Cedara (D) KZN (D) KZN Glen (B/) FS Greytown (D) KZN Greytown Kranskop (D) KZN Hoopstad (D) FS Migdol (D) NW Potchefstroom (B/) NW Potchefstroom (D) NW Stoffberg (D) MP B Besproeing / rrigation Bethlehem (D) FS Delmas (D) MP Kinross (D) MP Kokstad (D) KZN Marquard (D) FS Middelburg (D) MP D Droëland / Dry land Sleutel/Key: NW Noordwes/North West L Limpopo MP Mpumalanga LNRnstituut vir Graangewasse FS Vrystaat/Free state NC Noord Kaap/North Cape KZN Kwazulu Natal ARCGrain Crops nstitute

7 LNRnstituut vir Graangewasse D B G R R R 5 R 9 Y 8 R 8 R Y R 58 R 5 R R Y R 5 R 5 R 5 R S //E R R R R DM. i RR R R bis 9 R SD SD SD D D SD D D SD SD SD D D D Groei wyse/ Growth habit B LB B/ LB LB B B B/ KL B KL KL LB LB B B KL LB B KL Hilum kleur/ Hilum colour Koel Matig Warm Oliepersentasie/Oil percentage (%) Koel Matig Warm Proteïenpersentasie/ Protein percentage (%) Bepaald/Determinate Onbepaald/ndeterminate Swart/Black B Onvolledig swart/mperfect black Bruin/Brown LB Ligbruin/Buff Grys/Grey KL Kleurloos/Buff Peulhoogte in cm/pod height in cm Geneigdheid tot oopspring geëvalueer op n skaal van 5, waar = min en 5 =baie Tendency to shatter evaluated on a scale from 5, where = few and 5 = numerous Volwassen heidsgroepering/maturity Group Kultivar/ Cultivar SD 8 Koel Warm... Matig... Koel Warm Oopspring/Shattering SemiBepaald/Semi Deteminate Matig Peulhoogte/Pod height Tabel : Algemene inligting ten opsigte van geregistreerde sojaboonkultivars wat tydens die / groeiseisoen geëvalueer is. Table : General information on registered soybean cultivars that were evaluated during the / growing season. GW Bhürmann Linkseed Linkseed Linkseed Pioneer Linkseed GW Bhürmann GW Bhürmann Pioneer Linkseed Pioneer GW Bhürmann ARC Seedco Linkseed Linkseed Agricol Linkseed ARC ARC ARC Verskaffer/ Supplier SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 ARCGrain Crops nstitute

8 ,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 LNRnstituut vir Graangewasse DM.i RR DMDM.i.i RRRR 8 S //E S //E S //E bisbis bis R 5 5 R5 Y Y Y 9 9 R9 R 5 5 R5 R R YR8 9 Y9 89 Y 8 58 R R8 8 R 5 5 R5 A 59 A 59 A 59 RGRGRG 5 B 5 B 5 B 5 5 R5 R,5,5,5,5 Top Top Top R bis bis bis R TopTop Top YY Y 8 8 R 8 Y YY R R 58 R R R 5 R 5 5 R,5 5 R5 5 R R R Y Y Y R,5 R,5,5,5 5 R5 5,5,5,5,5,5,5,5,5,5,5,5 5 R5 5 5 R5 5 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 jaar vir koel Averagejaar year yield for vir cool koel jaar vir koel Average year yield for cool Average year yield for cool jaar vir koel Averagejaar year yield for vir cool koel vir koel Averagejaar year yield for cool Average year yield for cool,5,5,5,5 jaar vir koel koel Averagejaar year yield for vir cool Average jaar year yield for vir cool koel Average year yield for cool ARCGrain Crops nstitute

9 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 Tabel : O essekerheid by die verskillende mikpunte vir die koeler produksiee, /, /, / Table : Yield reliability at the different yield targets for the cooler production s, /, /, / Kultivar Cultivar 5 R R R R R Y bis R R 8 R 58 R Y Opbrengsmikpunte/Yield targets ton ha.*.9.5.* * *.5.*.98* *.58.9* *.*..*...8*.8*..5..9*...5.5* *..88*.* * *.8.5*.88* * * *.99.*.8* *..8.5* *.9.9.*.8.*..58*.9* *.5.9.8* *.5*.8.5*. jaar/year D Hoër as kolomgemiddelde/higher than column mean. D waarde dui stabiliteit van n kultivar aan. Hoe kleiner die D waarde, hoe meer stabiel is die kultivar. D value indicates the stability of a cultivar. A smaller D value indicates a more stable cultivar. Tabel 5: S aad (kg/ha) van kultivars gedurende die / en / groeiseisoene ten opsigte van die verskillende lokaliteite wat in die koeler produksiee geleë is Table 5: S eed yield (kg/ha) of cultivars during the / and / growing season for the various localities situated in the cooler production s Bethlehem Delmas Middelburg Bethlehem Delmas Kinross Kokstad Middelburg / Kultivar Cultivar / R 5 R R 8 R 58 R Y Y A 59 RG B 5 R R R R 5 R bis 5 R 5 R R R R R 9 Y 8 R 5 R 5 R S //E R DM.i RR 9 R LNRnstituut vir Graangewasse 9 ARCGrain Crops nstitute

10 ,5 LNRnstituut vir Graangewasse 9 Y 8 R 9 Y 8 R 5 R ARCGrain Crops nstitute R R 5 R S //E R bis bis bis R R S //E S //E 5 R 5 R R R R R 5 R 5 R 5 R 9 Y 8 R Y Y Y Y 9 R Y R Y R DM.i DM RR.i RR 8 8 DM.i RR R,5,5,5,5,5 8 R,5,5 5 R 5 R,5 B 5 B 5 B 5 A 59 RG A 59 RG A 59 RG 5 R 5 5RR 5RR 5 R5 5 5RR 5 R R R R,5,5 58 R 58 R,5 bis R bis bis R R R R R Y YY 5 R R RR 5 5 RR R Y Y Y 8 8 R 8 R R Top 58 R 58,5 58 R,5 5 R,5,5 R 58 R,5 R R R,5,5 R,5,5 5 R,5,5 R R R R R R 5 R 5 R R R R R,5,5 R SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 jaar van matige Average year for moderate jaar van matige Average year for moderate jaar van matige Average year for moderate,5,5,5 jaar jaar van van matige matige jaar van matige Average year yield for moderate Average year yield for moderate Average year yield for moderate,5,5,5,5 jaar van matige van matige Averagejaar year yield for moderate Average year yield for moderate jaar van matige Average year yield for moderate,5

11 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 Tabel : O essekerheid by die verskillende mikpunte vir die matige produksiee, /, /, / Table : Yield reliability at the different yield targets for the moderate production s, /, /, / Opbrengsmikpunte/Yield targets ton ha Kultivar Cultivar 5 R R R R R bis R 8 R Y Y 58 R R jaar/year..*.5.* *.5.5.*.59*.9.*.5* *...8.*...*.8.* *..*.8*.5.*..9*.8.9*..* *.9.*.9*.*.*..5*..* *.9.*.8*.*.*.*.8*.8.*.9.9* *.85.*.*.*.*..5*..*..8* *..8*.*.9*.8*..9* D Hoër as kolomgemiddelde/higher than column mean. D waarde dui stabiliteit van n kultivar aan. Hoe kleiner die D waarde, hoe meer stabiel is die kultivar. D value indicates the stability of a cultivar. A smaller D value indicates a more stable cultivar. Kultivar Cultivar Cedara Greytown Greytown Kranskop Lichtenburg Potch Bespr Stoffberg Cedara Glen Greytown Greytown Kranskop Hoopstad Migdol Potch Besproei Potch Droog Stoffberg Tabel : S aad (kg/ha) van kultivars gedurende die / en / groeiseisoen ten opsigte van die verskillende lokaliteite wat in die matige produksiee geleë is Table : S eed yield (kg/ha) of cultivars during yhe / and / growing season for the various localities situated in the moderate production s / / R 5 R R 8 R 58 R Y Y A 59 RG B 5 R R R R 5 R bis 5 R 5 R R R R R 9 Y 8 R 5 R 5 R S //E R DM.i RR 9 R LNRnstituut vir Graangewasse ARCGrain Crops nstitute

12 ,5,5,5,5,5,5,5,5,5,5,5,5 LNRnstituut vir Graangewasse SS//E //E S //E R 9 9Y9 Y8 8 YR8 Y Y Y R Top Top Top R R R R R bis bisbis R R R R R DM DMDM.i.i.i RR RRRR R Y Y Y R R,9,9,8,9,8,,8,,,,,5,,5,,5,,,,,,,,,,,,9,9, R AA59 59 A 59 RG RGRG R R B B5 5 B R R bis bisbis Top Top Top R R R R Y Y Y R R R R Y Y Y R,,,5,,5,,5,,,,,,,,,,,,9,9,8,9,8,,8,,,,, R R R SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 jaar van jaar jaar van Average year yield forvan Average year yield for Average year yield for jaar vir vir jaar jaar vir Average year for Average year for Average year for jaar vir jaar jaar vir Average year yield for vir Average year yield for Average year yield for ARCGrain Crops nstitute

13 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 Tabel 8: Oessekerheid by die verskillende mikpunte vir die produksiee, /, /, / Table 8: Yiel reliability at the different yield targets for the production s, /, /, / Kultivar Cultivar 5 R R R R Y R Y bis R R 8 R 58 R Opbrengsmikpunte/Yield targets ton ha..59*..*.55*.*....*...*.....*.8*.5.8.*.5.*.*.5*.8...5*..88.* *.*...*.8.5*.5*.*....* *.9*.5.8.*.8.*.*.*..8.8.* *.*...*..*.5*.*...8.* *..5*.5*.5.8.* *.* * *.*.5.9*.9...*.9..8*.9*....58* *.5*... jaar/year D * Hoër as kolomgemiddelde/higher than column mean. D waarde dui stabiliteit van n kultivar aan. Hoe kleiner die D waarde, hoe meer stabiel is die kultivar. D value indicates the stability of a cultivar. A smaller D value indicates a more stable cultivar. Tabel 9: S aad (kg/ha) van kultivars gedurende die / en / groeiseisoen ten opsigte van die verskillende lokaliteite wat in die produksiee geleë is Table 9: S eed yield (kg/ha) of cultivars during yhe / and / growing season for the various localities situated in the production s Groblersdal Koedoeskop Rustenburg Brits Groblersdal R 5 R R 8 R 58 R Y Y A 59 RG B 5 R R R R 5 R bis 5 R 5 R R R R R 9 Y 8 R 5 R 5 R S //E R DM.i RR 9 R Kultivar Cultivar Brits / Atlanta / LNRnstituut vir Graangewasse ARCGrain Crops nstitute

14 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 Current variety list: (to be published in June ) Conventional: Amstel No. (5) Dumela (5) * (5) * (5) * (5) * bis (5) * Jimmy (5) Kiaat (89) (5) * 555 (8) * (8) * 8 (8) (5) Mopanie (89) Mukwa (89) * NED 9 (5) * Nqutu (5) NSO5 () Octa () * 5 () * 8 () * 8 () * S //E () * SC Sorcerer (5) (5) * Stork (5) Tambotie (89) VegSoyBrBr8 (5) VegSoyYeCo9 (5) VegSoyYGPa (5) VegSoyYGPa8 (5) Wenner (9) GMO: # 5 RSF () *.5 F (5) Y 5F * A 59 RG (8) # AGC AR () # AGC 58AR () # AGC 58BR () # AGC 58CR () * AGC 58 R () * AGC R () # Don Mario () # Don Mario 5.i () * Don Mario.i () * Don Mario.8i () # FN 5.5 (5) # FN 5.5 (5) * 5 R (8) * R (8) * 5 R (8) * R (8) * R (8) * R (8) * R (8) * 8 R (8) * 5() R (8) * R (8) * R (8) * 5 R (8) * 5 R (8) * R (8) NS 8 () NS () NS 8 () NS 89 RG () 55 RR () * RR () * 5 R () * 5 R () 5 R () * 5 R () * 58 R () R () R () * R () * R () * R () * 9 R () * Phb 9Y8 R () * Phb B5 R () * Phb Y R () * Phb Y R () * Phb Y R () * Phb Y R () * RM 55 (5) Y 55 # RM 5 (5) # SRM 5 (5) # = PBR pending * = PBR granted Address list: Agricol 5 Adams & Adams 8 Monsanto 5 Buhrman, G. 5 ARC GC 9 Tregenna Farm Trust 5 Vreken, H. 9 Borman, G.J.J. Pioneer HiBred RSA 8 Link Seed 89 New Crop LNRnstituut vir Graangewasse 598 Cedara Agric Research Station 8 Schlanders, R.T. Agriocare SeedCo (Pty) Ltd. Seed Klein Karoo Seed Marketing Ltd 5 Seed Co SA (Pty) Ltd 5 Southern Hemisphere Seeds 5 Newlands Mashu Newlands Mashu, Edamane Development Program One Direction Solutions ARCGrain Crops nstitute

15 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS / 5 Notas Notes LNRnstituut vir Graangewasse 5 ARCGrain Crops nstitute

16 SOJABOON KULTVARAANBEVELNGS SOYBEAN CULTVAECOMMENDATONS FURTHER NFORMATON VERDERE NLGTNG nformation on the National Soybean Cultivar Trials and an useful guide, namely Soybean Production Manual are available at: Volledige inligting oor die Nasionale Sojaboon Kultivarproewe en ʼn nuttige bron van inligting oor sojaboonproduksie nl Sojaboon produksiehandleiding is beskikbaar by: ARCGrain Crops nstitute Private Bag X5 Chris Hani Street Potchefstroom 5 LNRnstituut vir Graangewasse Privaatsak X5 Chris Hani Straat Potchefstroom 5 Tel.: (8) 99 Faks: (8) 9 Tel.: (8) 99 Fax: (8) 9 * Cultivars that are discussed in this report are the only cultivars evaluated and recommended by the ARC. * Kultivars wat in die verslag opgeneem is, is die enigste kultivars wat deur die LNR getoets en aanbeveel word. ACKNOWLEDGEMENT ERKENNNG Execution of these trials were made possible through the financial support of the Agricultural Research Council, Protein Research Foundation, Seed Companies and a large number of cooperators who conducted trials. Mrs. Heila Vermeulen provided technical assistance and Mrs Nicolene Thiebaut the data analyses. Die uitvoer van die proewe is moontlik gemaak deur die finansiële ondersteuning van die Landbounavorsingsraad, Proteïennavorsingstigting, verskeie Saadmaatskappye en ʼn groot aantal medewerkers wat proewe uitgevoer het. Tegniese ondersteuning is verleen deur Me. Heila Vermeulen en die data ontleding deur Nicolene Thiebaut. LNRnstituut vir Graangewasse / 5 ARCGrain Crops nstitute