摘要
本文通过对丹桂、晚红蜜、绿化９号、雪桃４种晚熟品种桃，及对照品种庆丰，给大久保桃授粉受精速度的研究，以及它们之间的杂交亲和力、花粉生活力等研究。试验表明：大久保接受４种晚熟桃及对照品种花粉后，受精时间集中在１４～３８ｈ内，而且，各供试父本品种与大久保杂交的受精时间，大都确定在６ｈ的范围内；在杂交亲和力方面发现：晚熟桃与中熟桃的杂交亲和力较低；各供试父本品种的花粉生活力与其和大久保的杂交亲和力，呈一定程度的正相关趋势。
In the tests,the velocity of pollination and fertilization of Dajubao by four kinds of late varieties of peach, including Dangui,Wanxiangmi,Luhua No.9and Xuetao,and a control variety,Qingfeng,was studied.At the same time,the hybrid affinity between Da-jubao and the late varieties and thee. pollen activity were also analysed.The results sug-gested that the pollination was carried out in 14～38 hours after Dajubao accepted pollen of the late-mature peach and the control,and was accomplisted for six hours . Tothe hybridization,the affinity between late varieties and middle varieties was lower. Thepollen activity of paternal vareties was positively interrerrelated to the hybrid affinity to Dajubao in a certain extent.
关键词
桃
晚熟桃
授粉
受精
杂交
亲和力
大久保桃
late-maturing peach
velocity of pollination and fertilization
hybrid a fflnity
pollen activity
