Rehana Anjum
Central Cotton Research Institute, Sakrand Sindh, Pakistan
A. R. Soomro
Central Cotton Research Institute, Sakrand Sindh, Pakistan
M. A. Chang
Department of Plant Breeding & Genetics, Sindh Agriculture University Tandojam, Pakistan
ABSTRACT
Earliness studies were carried out on four strains (CRIS-19, CRIS-52, CRIS-133, CRIS-134) and one commercial variety CRIS-9 developed by CCRI Sakrand, during 1997 cotton season by evaluating five characters viz., plant height, main stem node number bearing 1st sympodial branch, number of days to bloom first flower / boll and number of days to attain 5-NAWF (Nodes Above White Flower) stage for their effectiveness in measuring earliness. The results demonstrated that the advance strains tested were 2 to 3 days earlier than CRIS-9 in opening their first flower, 2 to 6 days in attaining the stage of 5 - NAWF stage and 7 to 10 days in opening their first boll. It was also found that the characters attaining date of 5-NAWF stage and date of opening first boll were more reliable indicators of earliness as compared to others.
PDF References Citation
How to cite this article
Rehana Anjum, A. R. Soomro and M. A. Chang, 2001. Measurement of Earliness in Upland Cotton. Pakistan Journal of Biological Sciences, 4: 462-463.
DOI: 10.3923/pjbs.2001.462.463
URL: https://scialert.net/abstract/?doi=pjbs.2001.462.463
DOI: 10.3923/pjbs.2001.462.463
URL: https://scialert.net/abstract/?doi=pjbs.2001.462.463
REFERENCES
- Snedecor, G.W. and W.G. Cochran, 1967. Statistical Methods. 6th Edn., Oxford and IBH Publishing Co. Pvt. Ltd., New Delhi, India, Pages: 593.
Direct Link