|Table of Contents|

Analysis on Reasons for False Hybrid Seeds of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年03期
Page:
487-491
Research Field:
Publishing date:

Info

Title:
Analysis on Reasons for False Hybrid Seeds of Soybean
Author(s):
LI Ji-cun1; 2; HUANG Xin-yang1; WANG Miao2 ; SUN Shi2
1.Jining Academy of Agricultural Sciences,Jining 272031,Shandong;
2.Institute of Crop Science,Chinese Academy of Agricultural Sciences/National Key Facility for Crop Gene Resources and Genetic Improvement,Beijing 100081,China
Keywords:
Soybean; Crossing; False hybrid seed; Emasculation
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.03.033
Abstract:
Sexual hybridization is the main way in soybean breeding.However,there are several unfavorable factors during soybean crossing.For example,small flower organs,stigmas are easily broken during emasculation, high false hybrid rate and low hybrid survival rate.In order to improve the crossing procedure and increase the crossing efficiency,we analyzed the false hybrid rates after totally emasculating but not pollinating soybean flowers at different times in the blooming mornings,or after totally emasculating but not pollinating soybean flowers with or without wrapping leaves in the morning and afternoon.The results showed that false hybridization could always happen after emasculating but not pollinating soybean flowers at different emasculating times with or without leaf-wrapped treatments.Leaf-wrapped treatment resulted in a lower false hybrid rate after emasculation.The false hybrid rate was lower after the emasculation in the afternoon than in the morning.We emasculated soybean flowers earlier in the morning;the false hybrid rate was lower.Therefore,in the Huanghuaihai region,it is feasible to do hybridization in the morning,but the total emasculation in the morning should be finished before 6∶30.However,it is better to emasculate soybean flowers in the afternoon and wrap emasculated flowers with leaves.

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Last Update: 2014-08-17