International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 9, Issue:11, November, 2020

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(11): 3875-3882

Genetic Variability, Heritability, Genetic Advance Studies in Rice (Oryza sativa L.) for Spikelet Sterility and Pollen Viability
B. Kalyan1*, V. Satyanarayana Rao1, L. V. Subba Rao2, C. N. N. Neeraja2, Y. Ashoka Rani3 and S. K. Nafeez Umar4
1Department of Genetics and Plant Breeding, Agricultural College, Bapatla, Angrau, India 2Indian Institute of Rice Research, Hyderabad, Telangana – 500030, India 3Department of Crop Physiology, 4Department of Statistics and Computer Applications, Agricultural College, Bapatla, Angrau, India
*Corresponding author

The investigation carried out at Indian Institute of Rice Research Farm, ICRISAT, Patencheru, Hyderabad, Telangana, India, during Rabi, 2015-16 in order to estimate genetic variability, heritability and genetic advance in 154 genotypes of rice for pollen viability and spikelet fertility. Phenotypic coefficient of variation in general were higher than genotypic coefficient of variation for traits like pollen viability, spikelet sterility indicating high environmental effect on the expression of these traits except days to 50 % flowering and Number of grains per panicle which were less affected by environment for expression. Thus, selection based on phenotypic performance for days to flowering, Number of grains per panicle would be effective to bring about considerable genetic improvement. In the present investigation, high heritability coupled with high genetic advance was observed for spikelet fertility, plant height, single plant yield, number of grains per panicle, number of tillers per hill, pollen viability, number of productive tillers per hill, panicle length and 1000 grain weight. Thus, these traits are predominantly under the control of additive gene action and hence these characters can be improved by pedigree method of breeding.

Keywords: Variability, Hertiability, Pollen Viability, Spikelet Sterility

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How to cite this article:

Kalyan, B., V. Satyanarayana Rao, L. V. Subba Rao, C. N. N. Neeraja, Y. Ashoka Rani and Nafeez Umar, S. K. 2020. Genetic Variability, Heritability, Genetic Advance Studies in Rice (Oryza sativa L.) for Spikelet Sterility and Pollen Viability.Int.J.Curr.Microbiol.App.Sci. 9(11): 3875-3882. doi:
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