育种49 13、选择极限（selection limits）：是指一个群体进行长期闭锁选择，直至选择对 提高生产性能不再产生作用，即不出现选择反应。
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limit selection 极限选择
diameter limit selection cutting [林] 径级择伐 ; 径阶择伐
limit of selection 选择极限
·2,447,543篇论文数据，部分数据来源于NoteExpress
When retailers limit selection and refuse to sell popular products like Kindle, they send shoppers to the ones who do.
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In a bid to limit damage to his selection hopes, last week he posted a video apology on the internet and later issued a contrite statement following his omission.
CNN: South Africa topple England from No. 1 Test ranking
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