Co-Authors:
Degania, C., Institute of Horticulture, Agricultural Research Organization, Volcani Center, Bet-Dagan, Israel
Yutko, O., Kennedy-Leigh Ctr. for Hort. Res., Hebrew University of Jerusalem, Rehovot, Israel
El-Batsri, R., Institute of Horticulture, Agricultural Research Organization, Volcani Center, Bet-Dagan, Israel
Gazit, S., Kennedy-Leigh Ctr. for Hort. Res., Hebrew University of Jerusalem, Rehovot, Israel
Abstract:
Outcrossing rate in mango (Mangifera indica L.) mature fruit was studied for the first time in an orchard consisting of two adjacent blocks of 'Maya' and 'Tommy Atkins'. Few polyembryonic rootstocks were detected in the blocks. Outcrossing rates were determined at different distances from the pollenizer block using the polymorphic enzyme systems triosephosphate isomerase and isocitrate dehydrogenase. The outcrossing rate was measured in 'Maya' for two consecutive years and in 'Tommy Atkins' for one year. In all three cases, a pronounced decrease in hybrid rate was found between fruit sampled from the row bordering the second cultivar and that from the most distant row sampled (108 m and 96 m for 'Maya' in 1992 and 1993, respectively, and 80 m for 'Tommy Arkins'). Outcrossing rates were: 63% and 34% for 'Maya' in 1992; 57% and 39% for 'Maya' in 1993, and 79% and 24% for 'Tommy Atkins', for fruit sampled from the row closest to and most distant from the pollenizing cultivar, respectively.
תפריט נגישות
ניגודיות עדינה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
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