Effect of spacing on the yield and yield attributes of transplanted Aman rice cultivars in medium lowland ecosystem of Bangladesh
2011
Uddin, M.J. (Patuakhali Science and Technology Univ., Dumki (Bangladesh)) | Ahmed, S. (Patuakhali Science and Technology Univ., Dumki (Bangladesh)) | Harun-or-Rashid, M. (Patuakhali Science and Technology Univ., Dumki (Bangladesh)) | Hasan, M.M. (China Agricultural Univ., Beijing (China). Dept. of Plant Nutrition) | Asaduzzaman, M.
A study was conducted at medium low land of Agronomy Field laboratory, Patuakhali Science and Technology University, Bangladesh during the year 2008. Three spacing (5x15, 15x20 and 15x25 cm2) were tried to determine the yield and yield attributes of five transplanted Aman rice cultivars namely Mothamota, Lalmota, Lalchicon, BRRI dhan41 and BRRI dhan44. Among the cultivars BRRI dhan44 produced the highest grain yield (5.03t/ha), number of filled grains per panicle (97.67), number of total grains per panicle (106.11) and harvest index (48.75%). Among the spacing, 15x20 cm2 performed better for grain yield (3.66 t/ha), number of productive tillers per hill (5.13), number of total grains per panicle (91.80), number of filled grains per panicle (84.40) and harvest index (45.50%). Interaction effect of variety and spacing showed that variety BRRI dhan44 excelled in grain yield (5.36 t/ha) and harvest index (49.35%) at the spacing of 15x20 cm2. So variety BRRI dhan44 at medium spacing of 15x20 cm2 is recommended for higher grain yield in medium lowland ecosystem of Bangladesh.
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