The USDA Pear Breeding Program I. Emasculation and Pollination
DOI:
https://doi.org/10.71318/apom.1977.31.4.78Abstract
This is the first in a series of reports presenting a detailed account of the different phases of the pear breeding program of the United States Department of Agriculture. It consists of a description of pollen collecting, flower emasculation and pollination, and fruit collecting of numerous pear crosses made at Beltsville during the past 12 years. In 564 crosses between 25 most often used cultivars and selections, the overall seed/pollination ratio was 1:2. The most productive female cultivar ‘Kieffer’ produced 2 seed for each pollination, whereas ‘Dawn’ produced only 1 seed in 10 pollinations.
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