رسالة جامعية
Regulation of fruit development by pollen in the Omani date palm

Dietz, Toni Herbert.


 

Regulation of fruit development by pollen in the Omani date palm

Dietz, Toni Herbert.

influence of fruit set on ripening (% ripe fruits) in Khori pOllinated bunches indicated a specifically strong influence exerted by fruit set over ripening. Time to physiological maturity was affected by pollen type only in cv Khalas where AI Arudsabba and Bahlani induced earlier maturity (7 days) than Khori. Khori pollinated fruits appeared to mature later in both female cvs except cv Khalas in 1995. Bahlani induced earlier maturity in both female cvs. Regression analysis between thermal time and fruit fresh weight provided evidence for the effects specific to Khori. As Bahlani induced the same early maturity in both female cvs. Ripening was most uniform in Bahlani pollinated bunches, but faster in Khori pollinated ones. Correlations of thermal time and ripeness indicated that the temperature regime has a strong influence (r=0.99) over ripening in Bahlani pOllinated bunches Early pollen effects were probably due to phYSiological mechanisms, probably hormonal activity, which could be attributed to pollen type and pOllination. Late effects were under the influence of male x female interactions and were thought to be genetic. Bahlani conSistently induced the highest fruit fresh weight and size in the early fruit stages, but Khori in the later stages. Only in cv Khasab was Bahlani in the later stages on par with Khori in this regard. The situation was similar for fruit and seed size.

influence of fruit set on ripening (% ripe fruits) in Khori pOllinated bunches indicated a specifically strong influence exerted by fruit set over ripening. Time to physiological maturity was affected by pollen type only in cv Khalas where AI Arudsabba and Bahlani induced earlier maturity (7 days...

المؤلف : Dietz, Toni Herbert.

بيانات النشر : Nottingham، England : The University of Nottingham، 1998مـ.

التصنيف الموضوعي : العلوم التطبيقية|الزراعة .

المواضيع : Date palms - Sultanate of Oman.

Fruit growth .

الدرجة العلمية : دكتوراه

التخصص : Doctor of Philosophy

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