|Table of Contents|

Correlation Between Floral Organ Development Characteristics and Seed Setting Rate of Soybean Sterile Line(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2018年03期
Page:
342-346
Research Field:
Publishing date:

Info

Title:
Correlation Between Floral Organ Development Characteristics and Seed Setting Rate of Soybean Sterile Line
Author(s):
SUN He-xiang;  LI Zhi-gang;  ZHANG Wei-guo;  LIU Peng;  ZHANG Dong-mei; CHI Xiao-xue
(Agricultural college of Inner Mongolia University for Nationalities, Tongliao 028000, China)
Keywords:
Soybean sterile line;  Pollination related traits;  Outcrossing rate
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2018.03.0342
Abstract:
Abstract: In order to find out the factors that affect the seed setting rate of male sterile lines, three male sterile lines with high, middle and low outcrossing rate and the corresponding restorer lines were used as the test materials. The relationship between petal size, stigma surface area, nectar secretion, keel flap opening of the sterile lines and outcrossing rate were studied. Correlation analysis and path analysis showed that there was a positive correlation between outcrossing rate and nectar secretion (0.994 8), opening degree of dragon bone flap (0.955 8) and petal size (0.324 5), but a negative correlation with stigma surface area (-0.761 7). Among them, the amount of secreting honey (0.276 2) and the opening degree of dragon bone flap (1.106 2) had direct and positive effects on pods per plant. In conclusion, the male sterile lines with larger flowers, higher honey content, larger opening degree of dragon bone flap and smaller stigma surface area should be selected as female parent on the basis of higher conversion rate of light energy, which could effectively increase seed setting rate and yield of F1.

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Last Update: 2018-06-06