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

[img] PDF
Restricted to ICRISAT users only

Download (938kB) | Request a copy


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
Subjects: Mandate crops > Millets
Depositing User: Mr Charan Sai Ch
Date Deposited: 06 Dec 2011 14:39
Last Modified: 06 Dec 2011 14:39
Official URL:
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
View Statistics

Actions (login required)

View Item View Item