Effects of silicon on seed setting rate of rice intersubspecific hybrids.
The present study found semi-sterility in rice intersubspecific hybrids of 'Taichung 65' x 'Guangluai 4' and 'Ludao' x 'Qiuguang'. Embryo sac fertility was evaluated using the overall staining transparent method. The results showed that the embryo sac contained a normal egg cell, normal synergid cells, polar nuclei cells, and antipodal cells, indicating that semi-sterility was caused mainly by pollen semi-sterility. In the pot experiment, the effects of silicon on the seed-setting rate of the two intersubspecific hybrids were examined. The results showed that the rate of anther dehiscence, number of pollen per stigma of Fl plants, potential of pollen grain germination, and fertility of the spikelet were significantly improved by the utilization of silicon fertilizer.
College of Life Sciences, Henan Normal University, Xinxiang, China.
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WC
Li
College of Life Sciences, Henan Normal University, Xinxiang, China.
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L
Zhang
College of Life Sciences, Henan Normal University, Xinxiang, China.
J
J
Wang
College of Life Sciences, Henan Normal University, Xinxiang, China.
D
D
Wang
College of Life Sciences, Henan Normal University, Xinxiang, China.
T-X
TX
Wang
National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, China.
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CX
Duan
D005298:Fertility / Q000187:drug effects; D018525:Germination / Q000187:drug effects; D006824:Hybridization, Genetic; D012275:Oryza / Q000187:drug effects / Q000196:embryology*; D011058:Pollen / Q000187:drug effects; D012639:Seeds / Q000187:drug effects*; D012825:Silicon / Q000494:pharmacology*; D013045:Species Specificity
D012825:Silicon