MWBC FY2011 GRANT SUBMISSION PLANS: It is planned to submit this project for funding consideration in the next fiscal year.

Transcription

1 PROJECT TITLE: Evaluation of spring wheat, durum, and barley varieties under minimum-till, continuous cropping conditions 2009 (4W2756) PRINCIPAL INVESTIGATOR: Joyce Eckhoff, Eastern Agricultural Research Center, 1501 N Central Ave, Sidney, MT phone: (406) jeckhoff@sidney.ars.usda.gov OBJECTIVE: To determine the best adapted varieties of spring wheat, durum, and barley for production under no-till continuous cropping conditions in eastern Montana. Methods: Soil type: Williams clay loam Previous crops: spring wheat, safflower, small grain plots Herbicides: Brox M, 1.5 pt/ac, applied June 15 Precipitation April August, 2009: 8.87 in Ave (60 yr) precipitation April August: 9.41 in Precipitation September 2008 August 2009: in Ave (60 yr) precipitation September August: in Comments: It was generally a cool summer. Soil moisture was good at planting, but conditions were very dry in May and June. Rain started in early July, causing secondary tillering. Experiment Planting date Harvest date Plot size recrop spring wheat Apr 20 Aug ft 2, entire plot harvested. recrop durum Apr 20 Aug ft 2, entire plot harvested. recrop barley not planted mechanical malfunction RESULTS: Spring wheat: Twenty lines and varieties of spring wheat were tested under dryland recrop conditions (Table 1). Thirteen varieties yielded significantly less than the check variety, Vida. Five-year summaries for yield, test weight, height, and protein content are shown in Tables 2 through 5. Durum: Fifteen durum lines and varieties were tested under dryland recrop conditions (Table 6). One variety yielded significantly less than the check variety,. Five-year summaries for yield, test weight, height, protein content, and hard vitreous amber color are shown in Tables 7 through 11. Barley: Barley plots were not planted properly because of mechanical malfunction of plot seeder. SUMMARY: The experiments reported under this project are all of the replicated small plot type. The three-year crop rotation is commercial small grain, small grain yield trials, safflower. FUNDING SUMMARY: Expenditure information to be provided by OSP. No other grants support this project. MWBC FY2011 GRANT SUBMISSION PLANS: It is planned to submit this project for funding consideration in the next fiscal year. 1

2 Table 1. Agronomic data obtained from a dryland recrop spring wheat yield trial conducted at the Eastern Agricultural Research Center, Sidney, MT. entry heading* height, cm grain protein, % test wt, lb/bu yield, bu/ac Vida Faller O Neal %Choteau+80%Reeder %Choteau+80%Vida Barlow McNeal Volt x Granger x Briggs x Reeder x Outlook x AP604CL x 20%Choteau+80%Conan x Jedd x Choteau x Kelby x Kuntz x NDSW x Corbin x mean Probability < <0.001 <0.001 CV (S/mean) CV (SE/mean) LSD *days from planting x indicates significantly lower yield than check variety, McNeal, at probability of <0.05 2

3 Table 2. Relative yielding abilities of spring wheat varieties in bu/ac as compared to Vida when grown under dryland continuous cropping at the EARC, Sidney, Montana. Vida O Neal Vida Reeder Outlook Faller % Choteau 80% Reeder Volt % Choteau 80% Vida McNeal Choteau Barlow Briggs Granger Jedd AP604CL % Choteau 80% Conan Kuntz Kelby NDSW Corbin NOTE: Average yields in this summary should not be compared to each other since they are not grown in the same years. Compare only to the check variety. Table 3. Relative test weights of spring wheat varieties in lb/bu as compared to Vida when grown under dryland continuous cropping at the EARC, Sidney, Montana. 3 Vida Jedd Barlow AP604CL Kelby Volt Choteau O Neal Reeder % Choteau 80% Vida % Choteau 80% Conan % Choteau 80% Reeder Briggs Kuntz Vida Corbin Granger NDSW McNeal Outlook Faller NOTE: Average test weights in this summary should not be compared to each other since they are not grown in the same years. Compare only to the check variety.

4 Table 4. Relative heights of spring wheat varieties in cm as compared to Vida when grown under dryland continuous cropping at the EARC, Sidney, Montana. Vida Barlow Briggs O Neal Vida Outlook McNeal Kelby % Choteau 80% Reeder % Choteau 80% Vida Granger Reeder Volt AP604CL Choteau % Choteau 80% Conan NDSW Kuntz Corbin Faller Jedd NOTE: Average heights in this summary should not be compared to each other since they are not grown in the same years. Compare only to the check variety. Table 5. Relative protein contents of spring wheat varieties in percent as compared to Vida when grown under dryland continuous cropping at the EARC, Sidney, Montana. 4 Vida Corbin Kelby Reeder % Choteau 80% Reeder NDSW Barlow Vida % Choteau 80% Conan Briggs % Choteau 80% Vida AP604CL Kuntz Outlook Volt Granger Faller Jedd Choteau O Neal McNeal NOTE: Average protein contents in this summary should not be compared to each other since they are not grown in the same years. Compare only to the check variety.

5 Table 6. Agronomic data obtained from a dryland recrop durum yield trial conducted at the Eastern Agricultural Research Center, Sidney, MT. entry heading* height, cm grain protein, % HVAC test wt, lb/bu yield, bu/ac MT Divide Strongfield Cimmyt# Alkabo MT Normanno Cimmyt# Alzada Cimmyt# Dilse MT Grenora Pierce x mean probability < <0.001 < CV (S/mean) CV (SE/mean) LSD * days from planting x indicates significantly lower yield than check variety,, at probability <0.05 Table 7. Relative yields of durum varieties in bu/ac as compared to when grown under dryland continuous cropping at the EARC, Sidney, Montana. Alkabo Divide Alzada MT Grenora Cimmyt# Cimmyt# Pierce Strongfield MT Normanno Cimmyt# Dilse MT NOTE: Average yields in this summary should not be compared to each other since they are not grown in the same years. Compare yields only to the check variety. 5

6 Table 8. Relative test weights of durum varieties in lb/bu as compared to when grown under dryland continuous cropping at the EARC, Sidney, Montana. Alkabo Pierce MT Divide Strongfield MT Alzada Grenora Cimmyt# Cimmyt# MT Normanno Dilse Cimmyt# NOTE: Average test weights in this summary should not be compared to each other since they are not grown in the same years. Compare test weights only to the check variety. Table 9. Relative heights of durum varieties in inches as compared to when grown under dryland continuous cropping at the EARC, Sidney, Montana. Pierce Divide Alkabo Cimmyt# Strongfield Alzada Cimmyt# MT Dilse Grenora MT Cimmyt# Normanno MT NOTE: Average heights in this summary should not be compared to each other since they are not grown in the same years. Compare heights only to the check variety. 6

7 Table 10. Relative protein contents of durum varieties in percent as compared to when grown under dryland continuous cropping at the EARC, Sidney, Montana. Dilse MT MT Pierce Normanno Strongfield MT Divide Grenora Alzada Cimmyt# Cimmyt# Cimmyt# Alkabo NOTE: Average protein contents in this summary should not be compared to each other since they are not grown in the same years. Compare only to the check variety. Table 11. Relative hard vitreous amber color of durum varieties in percent as compared to when grown under dryland continuous cropping at the EARC, Sidney, Montana. MT MT Pierce Alkabo Grenora Dilse Alzada Divide MT Strongfield Normanno Cimmyt# Cimmyt# Cimmyt# NOTE: Average protein contents in this summary should not be compared to each other since they are not grown in the same years. Compare only to the check variety. 7