By the research of in vitro culture of pollens,and by the germination and growth of pollens on the styles,the results were that:1.The germination ratio of pollen of autotetraploid watermelon was low by self pollination;2.The growth of the pollen tubes in styles was slow;3.During the germination and growth of pollens,there were some abnormal phenomenon:the blinding of pollen tubes,the swelling as balls at the topes of pollen tubes,and two tube from one pollen.By the determinations of endogenous hormones,t...
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