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- W2378458138 abstract "In order to search new methods for emasculation,the feasibility of emasculation by water spray combined with elimination of inbreed F1 seedlings through transgenic marker in heterosis utilization in upland cotton was investigated.As a female parent,conventional cotton either grown in pots or in fields was emasculated by hand(CK) or by water spray,and was pollinated with pollens from Bt transgenic cotton or glyphosate-resistant cotton.Part of the harvested hybrid seeds were checked for its purity according to the response of seedlings to kanamycin or glyphosate,while the rest were planted in fields in the next year and the yield was examined after eliminating inbreed seedlings.The purity of seed produced by water emasculation in potting and field conditions was 94.8% and 92.2%,respectively,significantly lower than that of seeds produced by hand emasculation.The results indicated that water spray did not provide complete emasculation,but emasculation speed with water spray was doubled compared with hand emasculation.Hand-and water-emasculation should be done in the afternoon pre-anthesis and at 8∶00 ～10∶00 at anthesis, in terms of emasculation effects,respectively.After elimination of inbreed F1 seed-lings according to transgenic marker,there was no significant difference in lint yield of F1 plants between water emasculation and the control treatments.It is concluded that emasculation by water spray combined with elimination of inbreed F1 seedlings through transgenic marker could be used in enhancing heterosis utilization in upland cotton." @default.
- W2378458138 created "2016-06-24" @default.
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- W2378458138 date "2007-01-01" @default.
- W2378458138 modified "2023-09-26" @default.
- W2378458138 title "Emasculation by Water Spray and Elimination of Inbreed Seedlings with Transgenic Marker in Heterosis Utilization in Upland Cotton" @default.
- W2378458138 hasPublicationYear "2007" @default.
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