Cross-compatibility of Four Kinds of Camellia Species

doi:10.7525/j.issn.1673-5102.2016.04.007

Abstract

Abstract: By artificial pollination, dynamic survey of fruits setting rates, and analyzing the seed setting rates and fruits characters among different kinds of pollinations, four kinds of Camellia species were tested to study the characteristics of self-compatibility. The self-compatibility of four kinds of Camellia species was different, and the self-compatibility indexes of all materials were ranged in 0-0.29. The self-compatible indexes among four kinds of camellia species were C.yuhsienensis Hu(0.2888)> C.polyodonta How(0.2511)> C.chekiangoleosa Hu(0.1222)> C.semiserrata Chi(0). All of the materials were considered as self-incompatible species because the self-compatibility of four kinds of Camellia species were less than 1. The average fruit setting rates and seed setting rates between different pollinations was outcrossing> opening> geitonogamy> selfing. The character degree of self-pollination fruits was inferior to cross-pollination fruits. Fruits dropped faster after self-pollination, and fruit setting rates of cross-pollination was higher than that of self-pollination. Four kinds of Camellia species were completely self-incompatible. High self-incompatibility was the main factor causing flower and fruit dropping and low production.

Key words: Camellia yuhsienensis Hu, Camellia chekiangoleosa Hu, Camellia polyodonta How, Camellia semiserrata Chi, self-compatibility index

CLC Number:

S794.4

CHANG Wei-Xia, YAO Xiao-Hua, LONG Wei, YE Si-Cheng, SHU Qing-Long. Cross-compatibility of Four Kinds of Camellia Species[J]. Bulletin of Botanical Research, 2016, 36(4): 527-534.

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