Combining ability and correlation studies for earliness and photoperiod response in pearl millet

Talukdar, B S and Babu, P P P and Bidinger, F R (1993) Combining ability and correlation studies for earliness and photoperiod response in pearl millet. Crop Improvement, 20 (1). pp. 31-35. ISSN 0256-0933

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Abstract

Information on combining ability is derived from data on photoperiod sensitivity and time to 50% flowering in 7 parents and their 21 hybrids from a diallel cross of pearl millet (Pennisetum glaucum) grown at Patancheru during 1990-91 under normal and extended summer daylengths (12.5 h and 14.7 h, respectively), kharif normal daylength (13.5 h) and rabi normal daylength (11.6 h). The genotypes were also evaluated at Hisar, Haryana, during the rainy season in 1990 (14.2 h daylength). Photoperiod sensitivity was calculated as the percentage delay in 50% flowering under the summer extended daylength compared with the summer normal daylength. GCA effects for time to 50% flowering and photoperiod sensitivity were significant and negative for genotypes ICMP83401 and ICMP451, indicating that these parents may prove useful in the production of early flowering, photoperiod-insensitive progeny. The summer extended daylength nursery at Patancheru was effective in identifying material that exhibited delayed flowering in northern India due to photoperiod sensitivity.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Mandate crops > Millets
Depositing User:	Mr Charan Sai Ch
Date Deposited:	06 Dec 2011 14:39
Last Modified:	06 Dec 2011 14:39
URI:	http://oar.icrisat.org/id/eprint/3241
Official URL:
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	The authors are thankful to C.T. Hash for going through the manuscript and to D.E. Byth for his critical review of the manu~cript and valuable suggestions
Links:	Author

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