Technology for making male sterile of female lines for rice hybridization
A technology of hybrids and self-breds, applied in botany equipment and methods, applications, plant genetic improvement, etc., can solve the problems of heavy labor and difficult to remove, so as to save manpower and material resources, avoid losses, and ensure production purity Effect
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[0034] Select the female parent 8077 with the recessive traits sensitive to amide or urea paddy herbicides and restorer lines to prepare hybrids. After the hybrid F1 is sown to the 5.0 leaf age, follow the herbicide supplier's recommended field herbicide application concentration Or dosage, evenly apply amide or urea paddy field herbicides in the seedling field. After spraying, the mixed 8077 self-bred seedlings were inhibited from growing, their leaves were yellowed, and they could not grow normally, while the real F1 generation hybrid seedlings grew normally and had no symptoms of damage. Therefore, when 8077 encounters abnormal low temperature during seed production and self-breeding occurs, the purpose of using chemical agents to selectively kill the self-breeding seedlings after sowing the prepared hybrid seeds is realized.
[0035] The above-mentioned method can be used for the purity preservation of hybrid seed production of rice environment-sensitive male sterile lines...
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