LI Shan-wen, WU De-jun, LIANG Dong, WANG Kai-fang, WANG Cui-xiang, REN Fei. Plus tree selection of Cornus walteri.[J]. Journal of Beijing Forestry University, 2014, 36(2): 81-86.
Citation:
LI Shan-wen, WU De-jun, LIANG Dong, WANG Kai-fang, WANG Cui-xiang, REN Fei. Plus tree selection of Cornus walteri.[J]. Journal of Beijing Forestry University, 2014, 36(2): 81-86.
LI Shan-wen, WU De-jun, LIANG Dong, WANG Kai-fang, WANG Cui-xiang, REN Fei. Plus tree selection of Cornus walteri.[J]. Journal of Beijing Forestry University, 2014, 36(2): 81-86.
Citation:
LI Shan-wen, WU De-jun, LIANG Dong, WANG Kai-fang, WANG Cui-xiang, REN Fei. Plus tree selection of Cornus walteri.[J]. Journal of Beijing Forestry University, 2014, 36(2): 81-86.
In this paper, Cornus walteri resources in Shandong Province were used as the research object, 45
candidate plus trees were selected initially based on the extensive survey data. The oil yield of C. walteri
was selected as breeding objective. According to the biological characteristics of C. walteri, the relatively
stable traits less influenced by age were used as selecting traits for plus trees, including nine traits, such
as fruit number per infructescence, fruiting-branch ratio, 100-dry-fruit weight, oil content of fruit,
100-seed weight, crown height ratio, crown index, consistency of fruit ripening, and pest and disease
resistance. The mean, standard deviation and range of the traits were used to establish comprehensive
scoring method of plus trees, and 21 plus trees were selected from the candidate plus trees according to
the method. The comprehensive scoring method for plus tree selecting provides a scientific method and
achieves preferable selecting effect for plus trees.
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