DISTRIBUTION PATTERN OF DRY MATTER IN BLACK SEED PLANT AS AFFECTED BY GROTH REGULATORS AND SOWING DATES

A.Abraheem, Basheer.

	DISTRIBUTION PATTERN OF DRY MATTER IN BLACK SEED PLANT AS AFFECTED BY GROTH REGULATORS AND SOWING DATES
The Iraqi Journal of Agricultural Science
Article 1, Volume 40, Issue 6, 2009, Pages 78-84
Author
Basheer. A.Abraheem
Abstract
A field experiment was conducted using the randomized complete block design in split plot arrangement with three replications. This was to estimate the effect of sowing dates and plant growth regulators on distribution pattern of dry matter among plant parts of black seed. during 2003/2004 season at the experimental farm of Field of Crop Dept./ College of Agriculture. The sowing dates were 1/11,15/11and 1/12/2003 represented the main plots ,while the subplots included plant growth regulators. Those were; coconut milk ,gibberlin and ethiphon with concentrations of 100000 l/l ,100ug/ml and 100Microl/l ,reprectively as well as control (water) .Dry weights were differing with differing . growth regulators, which were 26.91g for coconut milk ,25.90 g for gibberllin an 17.27 g for ethephon The control treatment was 18.51 g Coconut milk and gibberllin increased capsule weight of 21.2 and 20.50,respectively. Ethephon decreased capsules weight of 1.25 g less than control .But the yield was increased 41.5% Stem and leaves were decreased fram 22.87 and 11.92 , respectively .The capsule plant weight ratio 23.68 by an increase ratio of 6.69 more than control.The first and second dates were superior over the third one They gave 3.37 ,2.85 and 2.47 g/plant respectively .The total dry weight was increased by being early in sowing dates of 28.18 g/plant for first datewhich was clearest than the next date 20.93 and 14.96 g /plant ,respectively.

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