Growth and Yield Performance of Six Aman Rice Varieties of Bangladesh
Soyema Khatun *
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh.
Md. Monjurul Alam Mondal
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh.
Md. Ibrahim Khalil
Pathology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh.
M. Roknuzzaman
Agronomy Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh.
Md. Mahi Imam Mollah
Department of Entomology, Patuakhali Science and Technology University, Patuakhali-8602, Bangladesh.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was conducted with six rice varieties to determine their growth and yield performance. The experiment was laid out in a randomized complete block design (RCBD) with four replications. All the growth and yield contributing attributes varied significantly among the six rice varieties. The results revealed that in all rice varieties maximum growth performance observed at 58-68 Days after transplanting and maximum dry matter production was observed at 68 days after transplanting. Maximum number of filled spikelet observed in Binadhan-17 (164.89/ penical) and that was significantly different from other varieties. Percent of sterile spikelet was highest in BRRI dhan39 (12.9%) and that was statistically similar with Binadhan-16 (11.96%) and BRRI dhan33 (12.36%). Maximum 1000-seed weight was observed in Binadhan-17 (27.25 g). Highest grain yield was obtained from Binadhan-17 (6.13 t/h) that was significantly different from other varieties. Lowest grain yield observed in BRRI dhan39 (4.49 t/h) that was statistically similar to BRRI dhan33 (4.57 t/h) and Binadhan-7 (4.86 t/h).
Keywords: Rice varieties, growth, yield.