Interaction Effect of Different Doses of Guti Urea Hill -1 on Yield and Yield Contributing Characters of Rice Varieties (Oryza Sativa L.

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1 International Journal of Agriculture, Forestry and Fisheries 2015; 3(2): Published online February 20, 2015 ( Interaction Effect of Different Doses of Guti Urea Hill -1 on Yield and Yield Contributing Characters of Rice Varieties (Oryza Sativa L.) Md. Maksudul Haque 1, *, Elora Pervin 2 1 Plant Breeding Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh 2 Department of Genetics and Plant Breeding, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh address maksudulhq@gmail.com (M. M. Haque) To cite this article Md. Maksudul Haque, Elora Pervin. Interaction Effect of Different Doses of Guti Urea Hill -1 on Yield and Yield Contributing Characters of Rice Varieties (Oryza Sativa L.). International Journal of Agriculture, Forestry and Fisheries. Vol. 3, No. 2, 2015, pp Abstract The experiment was conducted during July to December 2013 to study the effect of varieties and number of guti urea hill 1 on the yield of Transplant Aman rice where three varieties viz. Moulata, Shakorkura and BRRI dhan-51 and three levels of guti urea hill 1 viz. 0, 1 and 2 guti hill 1 were used for the present study. The factorial experiment was laid out in a split plot design with three replications. Responses of variety had significant among the whole yield, yield. Similarly, 2 guti hill -1 recorded the tallest plant (129.0 cm), maximum effective (7.846) and total tillers hill -1 (9.112). Maximum total grains panicle 1 (128.8), highest 1000 grain weight (28.88 g), grain, straw and biological yield (5.593, and t ha 1, respectively) were also obtained in 2 guti hill -1. Seed quality character viz. germination, SVI, EC, protein, seedling height and dry weight had also higher (93.45%, 53.66, µ S cm -1, 7.344, cm and g 10 seedlings -1, respectively) in 2 guti hill -1. Quality character of seed had also perform better in BRRI dhan-51 with 2 guti hill -1 as well as higher germination (94.67%), SVI (54.43), EC (39.32 µ S cm -1 ), protein (8.00%) and seedling height (18.09 cm) were taken from this interaction. These results suggested that the variety BRRI dhan-51 and 2 guti hill 1 individually or combined would be more effective for greater yield of T aman rice. Keywords Interaction, Guti Urea, Harvest Index, Protein, Electrical Conductivity, Aman Rice (Oryza Sativa L.) 1. Introduction Rice (Oryza sativa L.) is the dominant staple food for many countries in Asia and Pacific, South and North America as well as Africa [1]. Rice is grown in more than a hundred countries with a total harvested area of nearly 160 million hectares, producing more than 700 million tones every year [2]. In Bangladesh, during the year , rice covered an area of 28.5 thousand acres with a production of 33.5 million M tons while the average yield of rice in Bangladesh is around 1.2 thousand tons per acres [3] whereas the transplant aman rice covers the largest area of acres (48.97%) with a production of thousand M tons rice grain (38.14%) and the average yield is about 971 kg ha 1 in Bangladesh at Area under Bangladesh is the 5 th largest country of the world with respect to rice cultivation [4]. The population of Bangladesh is still growing and will require about million tons of rice for the year But the average yield of rice is poor (4.34 t ha 1 ) in Bangladesh [5]. On the other hand, rice production area is decreasing day by day due to high population pressure. Although, the average yield of rice is much lower as compared to other leading rice growing countries. Despite such a steady growth in agriculture as well as in food production, Bangladesh has been facing persistent challenges in achieving food security. This is mainly due to natural disasters and fluctuations in food prices [6]. In Bangladesh, T aman is one of the most important rice crops period which might suffer from high temperature at the different growth stages from germination to maturity [7].

2 38 Md. Maksudul Haque and Elora Pervin: Interaction Effect of Different Doses of Guti Urea Hill -1 on Yield and Yield Contributing Characters of Rice Varieties (Oryza Sativa L.) Hassan, et al. [8] reported that rice production depends on several factors: climate, physical conditions of the soil, soil fertility, water management, sowing date, seed rate, weed control and fertilization etc. that is, N is the main nutrient associated with yield. At present it is observed that rice yields are in stagnant condition, because farmers do not follow fully the improved techniques in an integrated way, which creates a yield gap. In this situation, farmers, researchers and scientists are looking for new methods or technologies to get higher yield of rice. Nitrogen fertilizer is a major essential plant nutrient and key input for in increasing crop yield [9]. To insure proper growth, large amount of chemical fertilizers are applied in different crops field [10]. Proper fertilization is an important management practice which can increase the yield of rice, Judicious and proper use of fertilizers can markedly increase the yield and improve the quality of rice [11]. Nitrogen fertilization also increased the different yield and yield contributing traits, reflecting on grain productivity. Excessive tillering caused by inadequate token fertilizer application up to panicle initiation stage is known to increase protein content and possibly grain yield of rice [3]. Nitrogen fertilization reduced the percentage of fertile tiller; filled spikelet percentage and grain mass [9]. In most cases, farmers use imbalance dose of nitrogen (N) fertilizer which causes higher insects/disease infestation resulting to lower yield. Generally farmers are accustomed to use N fertilizer in the form of prilled urea (PU) which is very easy to apply though rice plant can receive only 25 to 30 % of applied fertilizer [7]. To reduce nitrogen loss, application of urea super granule (USG) is strongly considered to be an important alternative that increases the efficiency of N about 20 to 25 % and also increases the yield by 15 to 20% [12]. In the recent past, price of urea fertilizer has increased in the international markets. Consequently, there has been severe upward shift in fertilizer price in Bangladesh and accordingly the government had to provide huge amount of subsidies on fertilizer every year. Prices of other fertilizers (like TSP and MP) are also high. So, we need to encourage farmers in using USG instead of prilled urea (PU) in rice production in order to reduce N loss that would in turn enhance productivity. However, there has been very scanty/minimum research works done so far in interaction between the USG and modern varieties at the end users level. Taking into consideration of all these issues, the present study was undertaken to the following objectives: To examine the differences of rice cultivars and efficiency of guti urea application for obtaining the higher growth, yield and quality seed and to select the most significant interaction between the rice cultivar and guti urea. 2. Materials and Methods The seeds of three modern T aman rice varieties were used as planting materials which were collected from the Bangladesh Rice Research Institute (BRRI), Joydebpur, Gazipur The experiment consisted of three rice varieties and three doses of guti urea and was laid out in a split plot (variety in the main plot and guti urea in the sub plot) design with three replications. The size of plot was m where block to block and plot to plot distance was 1.0 and 0.5 m, respectively. Row to row and plant to plant distance were also 20 and 20 cm, respectively, in each plot. So, the total plots were 27 (varieties 3 guti urea no. 3 replication 3). Different numbers of guti urea were applied in experiment field as experimental treatments which comprise with three doses of guti urea (USG) whereas each guti urea sizes was 3.6 g The following guti urea treatments were applied in experimental field which was applied in field at 20 days after transplanting on the basis of treatments. This guti urea treatments are- G 0 : Without guti urea (control), G 1 : 1 guti hill - 1 and G 2 :2 guti hill -1. From the above experimental materials it will be mentioned as are as follows. Factor A: Variety (V) V 1 : Moulata, V 2 : Shakorkura and V 3 : BRRI dhan 51 Factor B: Guti urea (no) T 1 : 0, T 2 : 1 and T 3 : 2 So, the treatments combinations were as follows: V 1 T 1 : Moulata 0, V 1 T 2 : Moulata 1, V 1 T 3 : Moulata 2, V 2 T 1 : Shakorkura 0, V 2 T 2 : Shakorkura 1, V 2 T 3 : hakorkura 2, V3 T 1 : BRRI dhan 51 0, V3 T 2 : BRRI dhan 51 1 and V3 T 3 : BRRI dhan 51 2 Biological yield (t ha 1 ): Biological yield is the sum of grain and straw yield which was recorded into kg plot 1 and finally converted into t ha 1. The biological yield was calculated by using the following formula: Biological yield= Grain yield + straw yield Harvest index (%): Harvest index is the ratio of the economic yield to the total biological yield of a crop. The harvest index was calculated by using the following formula: Economic yield Harvest index (%) = 100 Biologicalyield Where, Economic yield = Grain yield and Biological yield = Grain yield + Straw yield Percentage of seeds germination: Seed germination test was conducted to ascertain the quality of seed. Germination test was set up in three replications as per standard germination test. One hundred seeds harvested from different guti urea doses of each variety were used replicated three times. Seed were placed in petridishes were placed in an incubator at 30 O C till the completion of germination. Seedling were counted from 4 th day of germination up to 8 day of germination and seed was considered to be germinated as seed coat ruptured and radical came out up to 2 mm in length. Final germination count was made according ISTA. Germination percentage was calculated by using the following formula: Germination (%) = Numberofgerminatedseedsatfinalcount Numberof tested seeds 100 Seed vigor index: Seed vigor was measured as an index of

3 International Journal of Agriculture, Forestry and Fisheries 2015; 3(2): speed of germination. Speed of germination was derived from the germination test, using the following expression. Seed vigor index = + + Number of germinated seeds at1stcount Dayof germination at1stcount Number of germinated seeds at 2nd count Dayof germination at 2nd count Number of germinated seeds atfinalcount Dayof germination atfinalcount Where, germinated seeds number were 1st count was started at 7th day of germination and finally it was continuing up to 8th day of germination. Electrical conductivity test: For electrical conductivity test 50 seeds were weighed and soaked in 50 ml of de ionized water for 24 hours at 25±1 O C.After 24 hours, water of beaker containing seeds was decanted in order to separate the seeds. The leachates conductivity was determined in µ S cm 1 by using a conductivity meter (Model CM 30ET). Three replicates of measurements were made for each sample of seeds. Percentage of protein: Protein content was calculated by multiplying the nitrogen content (%) in seeds by a factor of Statistical analyses: Data recorded for yield and yield contributing characters and seed quality characters were compiled and tabulated in proper form for statistical analyses. Analysis of variance was done following the split plot design with the help of MSTAT C computer package programme developed by Russel. The mean differences among the treatments were evaluated with DMRT test. 3. Results and Discussion The present research work was to investigate the effect of genotypic differences including the relevance of various number of guti urea concerning to different yield and yield contributing characters. After observing the field performance, further investigation was also observed on the aspect of seed quality characters of before treated seed. Plant height (cm): Growth of rice plant was greatly influenced by different doses of guti urea. In this study, application of different number of guti urea (USG) exerted a positive influence on plant height (Table 1). The tallest plant (129.0 cm) was observed when 2 guti urea were applied in a hill which was followed by single (1) guti hill -1 (128.0 cm). On the other hand, without guti (control) recorded the shortest plant (126.0 cm). It was appeared that the plant height differed significantly among the treatment of guti urea. This result also indicated that the plant height increased progressively with the increased number of applied guti urea (Table 1). Similar findings were also obtained by application of guti urea (USG) in the soil significantly reduced nitrogen loss and this was helpful for better growth which findings were also similar with Jing Xiang et al. [13]. Number of effective tillers hill 1 : Among the yield components, productive or effective tillers are very important because the final yield is mainly a function of the number of panicles bearing tillers per unit area. As evident from the data presented in Table 1, effective tillers hill 1 exerted significant difference among the effects of USG (guti urea). The maximum number of effective tillers hill 1 (7.846) was observed in two guti hill -1 (USG) which was significantly differed from other USG treatment. Similarly, without guti or control treatment recorded the minimum number of effective tillers hill 1 (6.647). These results revealed that the production of effective tillers significantly improved with the increase of applied USG number in this study. These variation in effective tiller production may be also found due to the more USG would be more efficient than less USG to soil fertility, adequate N supply, reduce soil ph and initiate favorable condition for better growth as well as the maximum effective tillers production were achieved. Similarly, Jing Xiang et al. [13] reported that USG application reduces the nitrogen loss and this was helpful for better growth as well as more effective tillers. Number of non effective tillers hill 1 : Analysis of variance data on non effective tillers hill 1 was presented in Appendix I indicated significant variation due to the effect of different number USG (guti urea) application (Table 1). As evident from the Table 2, the maximum number of non effective tillers hill 1 (1.656) was produced from the untreated (without guti urea or control treatment) plot while application 2 guti hill -1 (USG) produced significantly the minimum non effective tillers hill 1 (1.267). Non effective tillers production was medium (1.433) in 1 guti hill -1. These results revealed that 2 guti urea (USG) was more efficient to produced minimum non effective tillers which will contribute to greater grain and straw yield. Non effective tillers did not produce filled grain as well as decreased the final grain yield. Similarly, Number of total tillers hill 1 : Number of total tillers hill 1 showed significant difference due to the effect of USG application. After harvest, it was found that the calculating data 2 guti urea (more USG) recorded the maximum number of total tillers hill 1 (9.112) while the minimum number of total tillers hill 1 (8.302) was found in control treatment (without guti urea). Among the treatments, 2 guti hill -1 (no.) produced maximum total tillers than 0 and 1 guti hill -1 (no.) while lower was obtained in without guti (Table 1). These results revealed that production of total tillers significantly increased with the advancement of guti urea treatment (no.). The finding of the present study was similar with Jing Xiang et al. [13] who found that the number of total tillers hill 1 was significantly increased in larger USG (3.6 g) than other smaller USG (2.7 and 1.8 g). Number of spikes panicle 1 : Number of spikes panicle -1 was significantly influenced by the effect applied guti urea (no.). Among the treatments of guti urea, the maximum number of spikes panicle 1 (10.28) was observed in 2 guti hill -1 compared to other guti urea treatments (Table 1). Without or control treatment recorded the minimum number of spikes panicle 1 (8.40). The variation in spikes panicle 1 was found due to the variation in tiller production by the guti

4 40 Md. Maksudul Haque and Elora Pervin: Interaction Effect of Different Doses of Guti Urea Hill -1 on Yield and Yield Contributing Characters of Rice Varieties (Oryza Sativa L.) urea treatments. The similar results were found by Faruk et al. [14], where they showed that 2 seedlings hill 1 were better performer in respect of grains panicle 1 than 3 seedlings hill 1. Number of filled grains panicle 1 : The effect of guti urea number hill 1 showed significant variation in respect of filled grains panicle 1 (Table 1). The maximum number of filled grains panicle 1 (122.4) was found in 3 guti hill 1 which was significantly different from other treatments. Similarly, the minimum filled grains panicle 1 (98.49) was taken from without guti treatment. Among the guti urea treatment, 2 guti hill 1 produced the better results than other treatment in case of lower unfilled grains production were achieved under this treatment. The variation in sterile spikelets was found due to the variation in seedling number hill 1 (Table 6). In 5 seedlings hill 1, confirmed the maximum number of tillers, panicle and also grains production in case of the less production of sterile grain. Similar findings were also obtained by Roshan et al. [15] who reported the similar observation. Number of unfilled grains panicle 1 : Unfilled grains production panicle -1 varied significantly among the main effect of guti urea application (Table 1). These results indicated that the maximum number of unfilled grains panicle 1 (7.493) was found in without guti while 2 guti hill 1 recorded the minimum production of unfilled grains panicle -1. Among the guti urea treatment, 2 guti hill 1 produced the better results than other treatment in case of lower unfilled grains production were achieved under this treatment. The variation in sterile spikelet s was found due to the variation in seedling number hill 1 (Table 1). In 5 seedlings hill 1, confirmed the maximum number of tillers, panicle and also grains production in case of the less production of sterile grain. Similar findings were also obtained by Faruk et al. [14] Number of total grains panicle 1 : Analysis of variance data on number of total grains panicle 1 was significantly influenced by the effect of guti urea no. hill 1 at harvest (Table 1). Among the guti urea treatments, the maximum number of total grains panicle 1 (128.80) was found in 2 guti hill 1 than that of 1 guti hill -1 (115.30) and without guti (106.0). These results revealed that all the treatments of guti urea differed significantly among them. The 7 seedlings hill 1 recorded the minimum number of grains panicle 1 (73.38). The variation in grains panicle 1 was found due to the variation in tiller production by the seedling treatments. The similar results were found by Faruk et al. [14], where they showed that 2 seedlings hill 1 were better performer in respect of grains panicle 1 than 3 seedlings hill 1. Thousand grain weight (g): Thousand grain weights were significantly influenced by the effect of different guti urea (no.) in this study (Table 1). It was appeared that all the treatments of guti urea (no.) produces statistically different sizes seed which were affect on 1000 grain weight. Among the guti urea treatments (no.), the highest weight of 1000-grain (28.88 g) was found in 2 guti hill -1 due to its larger sizes grain which was followed by 1 guti hill -1 (27.67 g) and without guti (26.49 g). These results revealed that guti urea application were more effective on 1000-grain weight as well as different number of guti produced differentiation in their weight. Similar findings were also obtained by Mondal et al. [16] who reported the similar observation. Grain yield (t ha 1 ): A significant variation was found due to the main effect of guti (no hill 1 ) in respect of grain yield (Table 1). The highest grain yield (5.593 t ha 1 ) was found in 2 guti hill 1 which was followed by 1 guti hill 1 (5.237 t ha 1 ) and without guti hill 1 (5.034 t ha 1 ) but all the treatments were statistically differed from each other. The variation in grain yield was observed due to the variation in production of tiller, grain number and grain size were also obtained by the variation of guti urea application. Similar findings were also obtained by Mondal et al. [16] who reported the similar observation. Straw yield (t ha 1 ): Effect of guti urea application had significant influence on straw yield (Table 1). The highest straw yield (9.661 t ha 1 ) was found in 2 (no.) guti hill -1 which was statistically differed from other guti treatments. However, without guti (no USG) recorded the lowest straw yield (8.329 t ha 1 ) while 1 guti hill -1 obtained the t ha -1 straw production. The variation in straw yield might be due to the variation in plant height and tiller production. Similar findings were also obtained by Uddin et al. [17] who reported the similar observation. Biological yield (t ha 1 ): Biological yield is a combination yield of grain and straw which was significantly affected by the application of different number of guti urea (Table 1). The highest biological yield (15.27 t ha 1 ) was found in 2 guti hill -1 while single (1) guti hill -1 produces t ha -1 and not guti (0 or control) produces t ha -1 biological yield whereas without guti had lower in production of biological yield. Higher (2 guti hill -1 ) doses of guti urea (USG) recorded the higher biological yield due to the higher grain and stray yield were achieved under this treatment. These results indicated that all the applied guti (USG) produces statistically different biological yield. Similar findings were also obtained by Mondal et al. [18] Harvest index (%): Application of USG (guti urea) was significantly influenced on harvest index at 1% level of probability (Table 1) whereas application of without guti and 1 guit produced statistically similar harvest index (37.85 and 38.07%, respectively). However, application of single (no.) guti recorded the maximum harvest index. The lowest harvest index (36.76%) was observed in higher (no.) guti urea. Similar findings were also obtained by Mondal et al. [18] Interaction effect between T aman varieties and guti urea (no.) Percent germination: Interaction effect between T aman rice varieties and guti urea was significantly influenced on percentage of seed germination. The highest percentage of germination (94.67%) was taken from the 2 guti hill -1 of the variety BRRI dhan-51 which was followed by the same guti hill -1 of both Shakorkura (93.67%). On the other hand, the lowest percentage of germination (83.33%) was found in without guti of Moulata (Table 2). These results revealed that

5 International Journal of Agriculture, Forestry and Fisheries 2015; 3(2): the 2 guti hill -1 of the variety Shakorkura had higher for germination than other treatment combinations in case of the produces the higher quality seed than other treatments. Similar findings were also obtained by Jeng et al. [19] who reported the similar observation. Seed vigor index: The data on seed vigor index was significantly influenced by the interaction effect between T amon rice varieties and guti urea hill -1 at 5% level of probability (Table 2). The highest seed vigor index (54.16%) was observed in 2 guti hill -1 treated variety of Shakorkura which was statistically identical with the interaction effect of BRRI dhan-51 and 2 guti hill -1 (53.4%). On the other hand, without treated variety of Moulata recorded the lowest seed vigor index (46.01%) which was statistically differed among other interactions. These results indicated the variety HC 2 produces the high quality seed compare to HC 95 in combinations with de-topping for their varietals differences where de-topping increased the seed quality. Similar findings were also obtained by Hossain et al. [20] who reported the similar observation. Table 1. Effect of different doses of guti urea hill -1 on yield and yield contributing characters of rice Varieties No. of No. of No. of No. of No. of Biologi Plant No. of non No. of Thousandgrain yield yield index Grain Straw Harvest effective total filled unfilled total cal height effective spikes tillers (m) hill -1 tillers hill -1 tillers hill -1 panicle -1 grains grains grains panicle -1 panicle -1 panicle -1 weight (g) (t ha -1 ) (t ha -1 yield ) (t ha -1 (%) ) Moulata c c a c c c a c c c c c a Shakorkura b b b b b b b b b b b b a BRR dhan a a c a a a c a a a a a b s/x LSD (0.05) Sig. Level ** ** ** ** ** ** ** ** ** ** ** ** ** CV (%) **= Significant at 1% level of probability; NS= not significant; CV= Co-efficient of variation and LSD= Least significant difference Table 2. Combined effect between varieties and guti urea hill -1 on quality characters of rice seed Varieties Guti urea Germination Seed vigor Electrical conductivity Protein Seedling Seedling dry weight (No.) (%) index (µ S cm -1 ) (%) height (cm) (g 10 seedlings -1 ) e f h f g e Moulata d d g e f de b b f c e bcd cd e e e de bcd Shakorkura c c c d de ab a a a c cd a cd d d c c cde BRRI dhan c c b b b bcd a a a a a abc s/x LSD (0.05) Sig. Level * ** ** ** ** ** CV (%) **= Significant at 1% level of probability; NS= not significant CV= Co-efficient of variation and LSD= Least significant difference Electrical conductivity (µ Scm -1 ): Electrical conductivity was significantly influenced by the interaction effect of T aman rice varieties and guti urea application hill -1 in this study (Table 2). It was found that the higher electrical conductivity (39.32 µ S cm -1 ) was recorded in interaction of the variety BRRI dhan-51 and 2 guti hill -1 while statistically similar EC (39.12%) was observed with the interaction effect of the variety Shakorkura and 2 guti hill- 1. Among other interactions, the variety Moulata and without guti hill -1 observed the lower EC (33.69 µ S cm -1 ). Similar findings were also obtained by Hossain et al. [21] and Sohel et al. [22] Protein (%): Analysis of variance data on protein (%) was significantly influenced by the interaction effect of the T aman varieties and guti urea application in this study at 1% level (Table 2). From the Table 2, it was found that the higher protein (8.000%) was observed in interaction of the variety BRRI dhan-51 and 2 guti hill -1 which was statistically differed among other interactions. Among the other interactions, untreated variety Moulata (control Moulata) noticed the lower protein (5.923%). Similar findings were also obtained by Bakul et al. [23] and Razzaque et al. [24] Seedling height (cm): Seedling height showed significant variation in this study by the interaction effect of the T aman varieties and application of guti urea hill -1 whereas it was found that the every T aman varieties significantly increased the seedling height in increasing rate of guti urea hill -1 (Table 2). This result appeared that the tallest seedling (18.09 cm) was found from the variety BRRI dhan-51 in interaction of 2 guti hill -1 while without or no guti hill -1 treated Moulata observed the shortest seedling (15.61 cm). These result

6 42 Md. Maksudul Haque and Elora Pervin: Interaction Effect of Different Doses of Guti Urea Hill -1 on Yield and Yield Contributing Characters of Rice Varieties (Oryza Sativa L.) indicated that all the interactions were statistically significant among them. Similar findings were also obtained by Ashrafuzzaman et al. [25] who reported the similar observation. Seedling dry weight (g 10 seedlings -1 ): Interaction effect between T aman varieties and guti urea application showed significant variation regarding to seedling dry weight. Among the interaction treatments, it was found that the seedling dry weight significantly increased with the increasing guti hill -1 among the varieties. This results observed that the higher weight of dry seedling ( g 10 seedlings -1 ) was found from the variety Shakorkura in 2 guti hill -1 while it was statistically close with the interaction of the same variety in 1 guti hill -1 ( g 10 seedlings -1 ) and the variety BRRI dhan-51 in 2 guti hill -1 ( g 10 seedlings -1 ) but they were not statistically identical. On the other hand, the lowest weight of dry seedling ( g 10 seedlings -1 ) was observed from the interactions of the variety Moulata and no guti hill -1 Table 2. Similar findings were also obtained by Alam et al. [26] 4. Conclusions These results suggested that the variety BRRI dhan-51 and 2 guti hill 1 individually or combined would be more effective for greater yield of T aman rice. From the above results investigation, it can be concluded that the variety BRRI dhan-51 and 2 guti hill -1 individually or their interaction were most effective and showed superior performance than other T aman rice varieties and also than that of other treatments of guti urea (no. hill -1 ). In case of the growth, yield and yield attributing traits as well as seed quality characters perform better under this individual and interaction treatment. Individual or interaction performance of BRRI dhan-51 and 2 guti hill -1 may be attributing the genetic makeup of the studied T aman varieties and also the variation in their applied guti urea number hill -1. In addition, the variety BRRI dhan-51 and 2 guti hill -1 may also be favourable for higher growth and yield of rice and also the quality seed production of rice. So, the above facts, the variety BRRI dhan-51 and 2 guti hill -1 had outstanding superiority for plant growth, yield components and yield over other varieties and guti urea treatments in this study. References [1] Mobasser, H.R., M.M., Delarestaghi, A., Khorgami, B.D. Tari, and H. Pourkalhor Effect of planting density on agronomical characteristics of rice (Oryza sativa L.) varieties in North of Iran. Pak. J. Biol. Sci., 10(18): [2] IRRI (International Rice Research Institute), rice/ rice facts/what is rice? [3] Alagesan, A., & Babu, R. (2011). Impact of different nitrogen levels and of application on grain yield and yield attributes of wet seeded rice. International Journal of Food, Agricultural and Veterinary science, 1(1), 15. [4] BBS (Bangladesh Bureau of Statistics). (2012). Statistics Pocket Book of Bangladesh ( ). Bangladesh Bureau of Statistics Division, Govt. of the People s Republic of Bangladesh. p. 37. 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