Realation of yield and  its components with different picking

Kh. Al-Juboori, Khalid

doi:10.32894/kujss.2007.43531

	Realation of yield and its components with different picking
Kirkuk Journal of Science
Article 1, Volume 2, Issue 1, 2007, Pages 105-117 PDF (0 K)
DOI: 10.32894/kujss.2007.43531
Author
Khalid Kh. Al-Juboori
Abstract
The experiment was carried out at Karkuk Governorate through 2005 season to study the response of yield and some of its components foe Lachata and Coker310 varieties to different picking times using RCBDesign in split plots in time with tthree replications, different picking of seed cotton were taken (as sup plots) from the two cotton varieties (planted in main plots).Data were taken on traits: seed cotton yield per plant, number of opened bolls per plant, boll weight, lint index, seed index and ginning outturn.The results showed that the mean square for varieties was significant for all traits except boll weight, and for picking times was significant for all traitsK and the interaction among them was significant only for seed index and ginning outturn. The variety Lachata was superior than coker310 for seedcotton yield, ginning outturn and number of opened boll, while Coker310 was superior for seed and lint indices. The early picking date shown higher values af all traits means except ginning outturn which reaches its lowest value at early picking time. From trend analysis study for picking times effect, it was shown that the response of seedcotton yield, ginning outturn, seed index and number of opened boll to picking times was cubic, while it was linear and quadratic for lint index and boll weight respectively (determination coefficients for all these relationships ranged from 94.5% for lint index to 99.9% for boll weight).
Keywords
Realation; Yield; its components; with different picking

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