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《Northern Fruits》 2008-03
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Studies about the Characteristics of Flowers and Pollen of Pyrus ussuriensis

SUN Yi1,LI Bao-jiang1,ZHANG Mao-jun2 (1 Horticulture College of Shenyang Agriculture University,Shenyang 110161,China; 2 Pomology Institute of Jilin Agriculture Academy,Gongzhuling,Jilin 136100,China)  
51 kinds of Pyrus ussuriensis Maxim.resources was used with different methods for the characteristics of flowers and pollen study.The results showed that Pyrus ussurensis Maxim.had 5 pistils and 18~30 stamen,pistils same high as or higher than stamens;varieties because of the number of stamens and pistils anther abortion degradation significant differences exist.The Pyrus ussurensis Maxim.varieties of pollen fertility of the significant differences exist pollen sterility,infertility and normal pollen can be of different types,such as infertility,fertile varieties of pollen and pollen of life there are significant differences not only the pollen sterility of Ussurian pear fertility Variety and genetic characteristics,but also vulnerable to environmental conditions and tree growth and development of state influence in the various years between the significant difference the pear pollen sticks water culture of life below the field of natural flower pollen,Variety strong adaptability and adequate nutrition accumulation,the more fully developed flowering branch water culture life of the high pollen can be done pollination.
【CateGory Index】: S661.2
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