مدة قابلية الأزهار المؤنثة للإخصاب لصنفي نخيل البلح غر و سكرية ينبع : ب-علاقتها بصفات الثمار الطبيعية

الملخص EN

This research was conducted on two date palm cultivars; Ghur and Sukariat Yunbo at the Agricultural Research Station of King Abdulaziz University in Hada Al-Sham region during two successive seasons (1996 and 1997).

The objective of the study was studing the relationship between the period during which the pistillate flowers remained fertile and eligible to fertilization and fruit physical properties.

Fruit weight was increased gradually as pollination delayed after spathes cracking.

The heaviest fruit weight was obtained when the pollination applied at 12 days after spathes cracking in both cultivars.

These findings might be du to the decrement in fruit set percentage, such as early fruit thinning effects.

Gradual and remarked increment occurred in flesh weight following delayed the pollination, meanwhile, the seed weight increment was very little.

So, the increment in fruit weight was mainly to the increase in flesh weight.

Fruit length and diameter increased gradually with delayed the pollination, the increase in fruit length and diameter was at same rate.