Genetic Analysis of F<sub>4</sub> Rice Lines for Salt Tolerance at the Reproductive Stage

Authors

  • S Akhtar Department of Genetics and Plant Breeding, Bangladesh Agricultural University Mymensingh-2202, Bangladesh
  • MM Islam Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh
  • SN Begum Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh
  • J Halder Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh
  • MK Alam Department of Genetics and Plant Breeding, Bangladesh Agricultural University Mymensingh-2202, Bangladesh
  • AC Manidas Department of Genetics and Plant Breeding, Bangladesh Agricultural University Mymensingh-2202, Bangladesh

DOI:

https://doi.org/10.3329/pa.v21i1-2.16746

Keywords:

Rice, Reproductive stage, Salt tolerant, Variability, Correlation, Path coefficient

Abstract

A total of 29 lines of F4 population of rice along with their parents Binadhan-5 (high yielding and salt susceptible) and Harkuch (salt tolerant landrace) were evaluated for salt tolerance at the reproductive stage with EC 6 dS/m following IRRI standard protocol. High heritability coupled with high genetic advance was observed in plant height in salinized and non-salinized conditions. High heritability along with high genetic advance was also found in number of filled grains/plant in saline condition. These characters were under additive gene control and selection for salt tolerance might be effective. Number of filled grains/plant showed significant positive correlation with grain yield/plant. Path analysis revealed that number of filled grains/plant had positive and maximum direct effect on grain yield/plant. Therefore, number of filled grains/plant should be given the importance in selection of rice lines under saline condition.

DOI: http://dx.doi.org/10.3329/pa.v21i1-2.16746

Progress. Agric. 21(1 & 2): 31 - 38, 2010

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Published

2013-10-31

How to Cite

Akhtar, S., Islam, M., Begum, S., Halder, J., Alam, M., & Manidas, A. (2013). Genetic Analysis of F<sub>4</sub> Rice Lines for Salt Tolerance at the Reproductive Stage. Progressive Agriculture, 21(1-2), 31–38. https://doi.org/10.3329/pa.v21i1-2.16746

Issue

Vol. 21 No. 1-2 (2010)

Section

Crop Science