Heterosis and Inbreeding Depression in Tropical Sweet Sorghum (Sorghum bicolor (L.)Moench)

Sudhir Kumar, I and Rao, P S and Reddy, B V S and Ravindrababu, V and Reddy, K H P (2016) Heterosis and Inbreeding Depression in Tropical Sweet Sorghum (Sorghum bicolor (L.)Moench). Crop Research, 51 (01). 01-04. ISSN 24541761

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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
Divisions: RP-Dryland Cereals
CRP: CGIAR Research Program on Dryland Cereals
Uncontrolled Keywords: Sweet sorghum; Heterosis; Inbreeding depression; Sugar yield
Subjects: Mandate crops > Sorghum
Depositing User: Mr Ramesh K
Date Deposited: 16 Sep 2016 08:51
Last Modified: 16 Sep 2016 08:51
URI: http://oar.icrisat.org/id/eprint/9675
Official URL: http://dx.doi.org/10.4172/2454-1761.1000104
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: The first author expresses thanks to International Crops Research Institute for Semi-Arid Tropics (ICRISAT).
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