Heterosis and inbreeding depression in tropical sweet Sorghum (Sorghum bicolor (L.) Moench)

Kumar, S. and Srinivasa Rao, P. and Reddy, B.V.S. and Ravindrababu, V. and Reddy, K.H.B. (2016) Heterosis and inbreeding depression in tropical sweet Sorghum (Sorghum bicolor (L.) Moench). Crop Research, 51 (1). pp. 1-4.

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Abstract

An investigation carried out during two seasons viz., rainy 2009 and rainy 2010 to study heterosis and inbreeding depression of four crosses of sweet sorghum (Sorghum bicolor (L.) Moench) and their F2 have revealed positive mid-parent and better parent heterosis for majority of the characters. Sugar yield was found to be most heterotic trait, as all the crosses depicted significant positive heterosis over their mid parent and better parent values in case of all the contributing characters indicating dominance gene action. Further high inbreeding depression for sugar yield reflected high heterosis during the two seasons for all the crosses suggesting the operation of non-additive gene action.

Item Type: Article
Uncontrolled Keywords: Sweet sorghum; Heterosis; Inbreeding depression; Sugar yield
Author Affiliation: Scientist, Plant Breeding, Agricultural Research Station, Acharya N. G. Ranga Agricultural University, Peddapuram -533 437, East Godavari District, Andhra Pradesh, India,
Subjects: Crop Improvement
Divisions: Sorghum
Depositing User: Mr T L Gautham
Date Deposited: 28 Oct 2016 06:32
Last Modified: 28 Oct 2016 06:32
URI: http://eprints.icrisat.ac.in/id/eprint/14458

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