EFFECT OF SPRAYING PLANT EXTRACTS AND GROWTH REGULATORS ON FLOWERING OF SNAKE CUCUMBER (Cucumis melo var.flexuoses Naud) AND CUCUMBER (Cucumis sativus L.)

	EFFECT OF SPRAYING PLANT EXTRACTS AND GROWTH REGULATORS ON FLOWERING OF SNAKE CUCUMBER (Cucumis melo var.flexuoses Naud) AND CUCUMBER (Cucumis sativus L.)
journal of kerbala university
Article 1, Volume 3, Issue 2, 2007, Pages 204-211 PDF (0 K)
Abstract
This experiment has been conducted on snak cucumber and cucumber in Abu-Al-Khassib region-Basrah, during the autumn growing seasons of 2002 and 2003, to study the effect of garlic extract at (0.5:1) and (1:1) (w:v), and the common liquorice extract at 1.25 and 2.5 g.l-1, IAA 25,50 and 75 mg.l-1 , and ethephon at 100,200,300 mg.l-1on the flowering of snake cucumber (cv.Khunaisry) and cucumber (cv.Beit alpha) plants.The design of each experiment were a randomized complete block design in three replications.The result showed that the formation of the male flower delayed at 2.5 g.l-1 liquorice extract and 200 mg.l-1 ethephon, 2.5 g.l-1 liquorice extract at the second season for snake cucumber, but it delayed at 0.5:1 garlic extract at the first season, 200 mg.l-1 ethepon at both seasons, (25 and 50) mg.l-1 (IAA) at the first and second season respectively for cucumber. The formation of the female flower earliness at 300 mg.l-1 ethphon for both plants at both seasons and also earliness at 75 mg.l-1 (IAA) and 100 mg.l-1 ethephon at second season for cucumber. The number of female flowers increased at 2.5 g.l-1 liquorice extract for both plants and 1:1 garlic extract at second seasons for cucumber. Also IAA and ethphon increased female flowers at both seasons for both plants.The increase of plant extracts and growth regulators conc. decreased sex ratio and increased fruit set. Ehephon at conc. (300 mg.l-1) gave the highest number of female flowers and fruits set and the lowest number of male flowers and sex ratio.

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