Genetic variability for grain yield and yield associated traits in transplant Aman rice (Oryza sativa L.)

Authors

  • Mashtura Begum Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202
  • Md Amir Hossain Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh-2202
  • Fakir Muhammad Munawar Hossain Planning Commission, Senior Assistant Secretary, Government People?s Republic of Bangladesh, Dhaka
  • Ahmed Khairul Hasan Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202

DOI:

https://doi.org/10.3329/ralf.v2i2.25000

Keywords:

Phenology of rice, Chlorophyll content, G X E interaction, Genetic advance

Abstract

For any crop improvement program, it is imperative to assess the grain yield progress of the existing crop varieties to find the further avenue to out yield the existing superior ones. Therefore, an experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from July to December 2013 to find out the genetic variation for grain yield and their associated traits of transplant Aman rice varieties. The experiment consisted of 11 varieties viz. Bashiraj, Binadhan-7, BR10, BR11, BR22, BR23, BRRIdhan32, BRRIdhan39, BRRIdhan49, BRRIdhan57 and IR64. The high yielding Bangladeshi varieties were selected based on their releasing year with a local and one exotic T. Aman rice varieties. Among the varieties, BR10 produced the highest grain yield (3.83 t ha-1). Binadhan-7 rice variety recorded the highest chlorophyll content (39.93 SPAD value) at 29DAT, (44 SPAD value) at 39 DAT and (47.30 SPAD value) at 49 DAT. The highest phenotypic (1491.81) and genotypic (1147.26) variances and genetic advance (61.19) were obtained from spikelets panicle-1 and this parameter had greater ability to increase yield. Among the traits, the highest heritability was recorded by effective tillers hill-1 (87.91%) which influenced the grain yield. Therefore, it may be concluded that the variety BR10 of transplant Aman rice produced maximum grain yield, spikelets panicle-1, showed high phenotypic and genotypic variances and genetic advance. Bashiraj, BRRIdhan49 and BRRIdhan57 also can be considered as planting materials as their yield performance is close to BR 10. Therefore, the findings of the present study will help the breeders for further yield improvement of rice.

Res. Agric., Livest. Fish.2(2): 207-213, August 2015

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Author Biography

Mashtura Begum, Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202



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Published

2015-09-16

How to Cite

Begum, M., Hossain, M. A., Hossain, F. M. M., & Hasan, A. K. (2015). Genetic variability for grain yield and yield associated traits in transplant Aman rice (Oryza sativa L.). Research in Agriculture Livestock and Fisheries, 2(2), 207–213. https://doi.org/10.3329/ralf.v2i2.25000

Issue

Section

Agriculture