Change in levels plant hormones during growth and development of date palm(Phoenix dactylifera L.) seeded and parthenocarpic fruits c.v. Hillawi
Basrah Journal For Date Palm Research,
Volume 10, Issue 2, Pages 77-93
AbstractThe present study was carried out in aprivate orchard in shatt –ALAraab region –Basrah ,fieldly and laboratory in date palm researth center to purpose extraction and determination s hormones (auxins,Gibbrillin ,Cytokinin and abscisic acid ). The results show that seed fruits higher significant on parthenocarpic fruits in auxins-like substances during fruits stage low and rapid of growth until 16th week after pollination (khalal stage for seeded fruits ). Hwever, seeded and parthenocarpic fruits appear followed until 16th week after pollination .As for , results show that the seeded and parthenocarpic fruits for cultivars Hillawi appeared followed appear followed until the Gibbrillines-like substances in all stage and higher significantly for parthenocarpic fruits at 6th week after pollination . However , not significant different between in both specious in ether weeks from growth and development. As well as , The results showed that increase Cytokinin-like substances continue from 4th to 10th week after pollination (log phase of growth )for seeded fruits and 6th week after pollination for parthenocarpic fruits and entered seeded fruits in khalal stage (16th week after pollination ) decreased Cytokinin-like substances .whereas ,decline that substances for parthenocarpic fruits at 10th week after pollination to higher again time at entered 16th week after pollination . As for, ABA –like substances that seeded and parthenocarpic fruits take similar sequence in all stage except first stage growth and significantly for seeded fruits .
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