|Table of Contents|

COMPONENTS AND DISTRIBUTION OF 100 - SEED WEIGHT IN NATURALPOPULATIONS OF WILD SOYBEAN(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2005年04期
Page:
243-248
Research Field:
Publishing date:

Info

Title:
COMPONENTS AND DISTRIBUTION OF 100 - SEED WEIGHT IN NATURALPOPULATIONS OF WILD SOYBEAN
Author(s):
Wang Kejing 　 Li Xianghua 　 Zhang Zhiwei 　 Li Fushan　 Chao Yongsheng
(Instituteof Crop Sciences, Chinese Academy of Agricultural Sciences , Beij ing 100081)
Keywords:
Wild soybean; 100- seed weight ; Genetic diversity ; Natural population
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2005.04.0243
Abstract:
　 Weight of 100 - seeds is one of important botanical traits in wild soybean, which is the indicatorof evolutionary degree in the subgenus Soja . Commonly , natural populations of wild soybean all are mixedones composed of a series of types of 100- seed weight. We investigated the component of types of 100-seed weight in 12 natural populations. The results showed that the between - population diversity values(H′ β =2. 420)was higher than the within - populations value (H′α=0. 875), indicating that the variationof 100- seed weight components in the populations were caused mostly by the differences of the geographiclocality. The 100- seed weight was varied from 0. 75 - 6. 0g in these populations and types of 1. 0 - 1. 5gand 1. 5 - 2. 0g were principal dominance ones;types of less than 1. 0g and 2. 0 - 2. 5g rarely existed asdominance types. Most populations had one single dominance type;a very few populations would havedouble dominance types. The mean 100- seed weights of the northern and center populations were higherthan those of the southern ones. Correlation analysis showed that nearer types of 100 - seed weight hadhigher degrees of overlapping distribution , implying that types of bigger seeds would have higher probabil-ity to grow together. Cluster analysis suggested that there was a relationship to a certain extent betweenthe population structures and geographic distribution in wild soybean.

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Last Update: 2017-01-08