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Effects of Source-sink Relationship of Soybean Sterile Line on Seed Yield and Wrinkled Seeds Percentage per Plant(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2018年04期
Page:
558-562
Research Field:
Publishing date:

Info

Title:
Effects of Source-sink Relationship of Soybean Sterile Line on Seed Yield and Wrinkled Seeds Percentage per Plant
Author(s):
CHI Xiao-xue;  ZHENG Gen-chang;  LI Zhi-gang; Zhang Dong-mei; SUN He-xiang;  LIU Peng
(Agricultural College of Inner Mongolia University for Nationalities, Tongliao 028000, China)
Keywords:
Sterile line;  Source-sink relationship;  Grain character
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2018.04.0558
Abstract:
In order to explore the effects of source-sink relationship of soybean sterile line on seed yield and wrinkled seeds percentage per plant, the soybean sterile lines with high, medium and low out-crossing rate and their homotypic maintainer lines were selected as materials.The source-sink characteristics of 3 soybean sterile lines in the seed filling stage were comparatively analyzed by measuring the content of soluble protein, soluble sugar and starch in leaves, seeds number per plant, 100-seed weight, seeds weight per plant, and wrinkled seeds percentage per plant.The results showed that the content of soluble protein, 100-seed weight and wrinkled seeds percentage per plant in sterile lines with high, middle and low out-crossing rate were significantly higher than that in their homotypic maintainer lines, but the seeds number per plant and seeds weight per plant in sterile lines were lower than that in their homotypic maintainer lines. Meanwhile, the content of soluble sugar and starch in soybean sterile line with medium and low out-crossing rate were significantly higher than that in their homotypic maintainer lines and the high out-crossing rate of sterile line. There were differences between source-sink of sterile line compared with the homotypic maintainer lines, and the greater difference in the source-sink of the sterile line with the lower out-crossing rate.Small sink capacity, transportation obstacles of soluble sugar and starch were probably the reason why the wrinkled seeds percentage in soybean sterile line was higher than that in its homotypic maintainer line. In addition, there was the phenomenon that the lower of the out-crossing rate, the more obviously decreasement of its sink capacity and the transportation obstacles of soluble sugar and starch in 3 sterile lines.

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Last Update: 2018-07-31