Sporad Formation and Pollen Fertility of Nine Local Coconut Cultivars

Tessie C. Nuñez


Sporad formation and pollen fertility were studied in nine local cococut cultivars. Varying frequencies of abnormal sporads such as dyads, triads, pentads, hexads and heptads were observed. Normal sporads (tetrads) occurred highest in Lingkuranay (99%) and lowest in Coconino (58%). Pollen fertility ranged from 66% (Coconino) to 96% (Baybay Tall). Significant positive correlation (r=0.75) was seen between tetrad frequency and pollen fertility percentage.

Keywords: Coconut. Sporad formation. Pollen fertility.

Annals of Tropical Research 10(3&4):(1988)
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