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Natural cross pollination in Egyptian cotton (Gossypium barbadense L.)

Published online by Cambridge University Press:  27 March 2009

M. A. Elfawal ,
M. A. Bishr  and
E. K. Hassoub
M. A. Elfawal
Affiliation:
Crop Science Department, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
M. A. Bishr
Affiliation:
Crop Science Department, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
E. K. Hassoub
Affiliation:
Crop Science Department, Faculty of Agriculture, Alexandria University, Alexandria, Egypt
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Summary

The percentage of natural cross pollination was estimated in the Alexandria area (Egypt) in two sites near and far from an apiary. The Egyptian cotton variety Giza 45 and the glandless strain Bahtim 110, as a marker parent, were used during three growing seasons. The average natural crossing within the square of the marker parent were 3·54 and 0·34% near and far from the apiary respectively. For the plants around the square of pollen source, however, the average of natural crossing was 0·56% near the apiary, while it was 0·21% far from the apiary. The natural crossing steadily decreased as the distance from the marker variety increased.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 86 , Issue 1 , February 1976 , pp. 205 - 209
Copyright
Copyright © Cambridge University Press 1976

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