Pseudo-Self-Compatibility in Red Clover (Trifolium pratense L.)
- R. C. Leffel and
- A. I. Muntjan2
Pseudo-sclf-coinpatibility (PSC) in normally self-incompatible angiosperms is attributed to environmental, chemical, or genetic causes. Vegetatively propagated clones or randomly selected red clover plants (Trifolium. pratense L.) were subjected to various treatments suggested in the literature as affecting PSC. PSC was a definite clonal characteristic. PSC of 30 of 45 clones tested was greatest at higher temperatures, 32 or 38C. Variation for PSC among world ecotypes ranging in origin from 5° to 69° latitude was limited. PSC was not affected by infection with alfalfa mosaic virus or bean yellow mosaic virus strain 204-1. Applications of 10 ppm of napthalene acetamide or gibberellic acid as foliar and floral sprays did not affect PSC nor did wilting induced by reduction of soil moisture.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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