International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2015, Volume : 3, Issue : 6
First page : (93) Last page : (98)
Article doi: http://dx.doi.org/10.18782/2320-7051.2137

Genetics of traits imparting drought tolerant in post rainy season sorghum (Sorghum bicolor L. Moench)

S. P. Karande and D. B. Lad*
Dept. of Agricultural Botany, PGI, Mahatma Phule Krishi Vidyapeeth, Rahuri. Ahmednagar  (M.S.)
*Corresponding Author E-mail: dattaladuup@gmail.com
Abstract
An investigation on generation mean analysis involving six generations (P1, P2, F1, F2, B1 and B2) of the cross RSV1098 x RSV458 in sorghum was carried out for the traits associated with drought resistance. The joint scaling test for almost all the characters was found highly significant in all the crosses, indicating inadequacy of additive-dominance model. The dominance (h) gene effects were found predominant along with dominance x dominance (l) interaction effects in the inheritance of traits viz., relative leaf water content (RWC), chlorophyll stability index (CSI), harvest index and grain yield. The preponderance of additive (d) gene effect along with dominance x dominance (l) gene effect was found importance in the inheritance of stomatal frequency on adaxial and abaxial surface and length of panicle. The parent RSV1098 was found superior in contributing traits viz., harvest index, length of panicle and total above ground dry matter and grain yield per plant, while parent RSV458 was found superior in contributing relative leaf water content (RWC), chlorophyll stability index (CSI) and stomatal frequency an adaxial and abaxial surface.

Key words: drought, generation mean analysis, rabi sorghum, epistasis, additive-dominance model

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Karande, S.P. and Lad, D.B., Genetics of traits imparting  drought tolerant in post rainy season sorghum (Sorghum bicolor L. Moench),  Int. J. Pure App. Biosci. 3 (6): 93-98 (2015). doi: http://dx.doi.org/10.18782/2320-7051.2137