“semi、sterile”的英文意思_释义_用法

单词

semi-sterile

释义

semi-ˈsterile, a. Biol.
[semi- 8 d.]
Reduced in fertility by approximately 50 per cent.
1914J. Belling in Jrnl. Heredity V. 71/1 The plants with perfect pollen have also perfect ovules; the plants with semi-sterile pollen have also half their ovules sterile.1927Ibid. XVIII. 267/1 Ears produced on semi-sterile individuals bear only 50 per cent of the normal number of seeds irrespective of the source of the pollen used, since the lethal operates prior to fertilization.1956Nature 10 Mar. 452/2 The cytological properties of a series of semi⁓sterile stocks.1978Ibid. 20 July 253/1 Using this method, dieldrin-resistant sterile or semisterile males would be released into the field.
Hence semi-steˈrility.
1914J. Belling in Jrnl. Heredity V. 73/1 These plants are favorable for an investigation of semi-sterility since no complications arise from self-sterility, incompatibility, or intercrossing by insects.1978Nature 20 July 253/1 A release programme involving..males carrying genetic aberrations that give high semisterility.

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