Title: Correlation between Cross Pollination and Pollen Density in CMS-D1 Multiplying Field
Abstract: The correlation between the seed set of cytoplasmic male sterile(CMS)line cross pollination of Dian one(D1)type and the pollen density of male parent in multiplying field under the synchronization of two parents' heading date was investigated.The result indicated that the seed set on MS line largely depended on the pollen size of male parent in multiplying field.For that,a regressive formula,Y=16.254+4.189 x,was built,which meant that another 4.189 MS seeds were obtained with every pollen increasing in an area of 1mm2.The obviously positive relationship was also detected between the seed set rate of cross pollination and pollen density(r=0.719).In addition,some factors were also of great importance for increasing the outcrossing seed set,which included the temperature of 28~34.4℃,the relative humidity of 62%~78% and the blooming time difference of both parents between 10 min and 23 min.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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