Interspecific incompatibility is overcome by
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In Populus and Cosmos it has been possible to overcome inter- and intraspecific incompatibilities, respectively, by using killed compatible pollen along with live incompatible pollen (Knox, Willing and Ashford, 1972; Knox, Willing and Pryor, 1972; Howlett, Knox, Paxton and Heslop-Harrison, 1975
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In flowering plants, pollen grains contain in their walls extracellular proteins which are released on to the stigma soon after pollination ...Interspecific incompatibility is overcome by. a. Self pollinationb. Wetting of anthersc. Wetting of stigmasd. Mixed pollination.
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