| 释义 |
parthenocarpy Bot.|ˈpɑːθənəʊkɑːpɪ|
[a. G. parthenocarpie (F. Noll 1902, in Sitzungsber. d. Niederrheinischen Ges. für Natur- und Heilkunde 160), f. Gr. παρθένο-ς virgin + καρπός fruit + -y3.]
The development of a fruit without fertilization having taken place in the plant producing it. Hence ˌparthenoˈcarpic a., of a fruit, produced without prior fertilization; ˌparthenoˈcarpically adv.
1911J. M. Coulter et al. Textbk. Bot. II. 917 In striking contrast to ordinary fruit production is parthenocarpy, or the development of fruit without the fusion of gametes. Ibid., Plants with parthenocarpic fruits are..propagated vegetatively. 1924M. Skene Biol. Flowering Plants v. 406 An embryo may develop without fertilisation having occurred. Corresponding to this parthenogenesis we have parthenocarpy, where a fruit is produced without any seeds. 1929Nature 13 July 63/2 Triploids occur..with partial parthenocarpy in the cultivated apples. 1949Endeavour VIII. 191/1 Even in plants which normally produce seeded fruits, parthenocarpy may occur spasmodically. Ibid. 191/2 Parthenocarpic fruits often differ from seeded fruits of the same variety, not only in size and shape but in chemical composition. 1951New Biol. XI. 72 There is virtually no fertilization in the seedless edible varieties [of banana], the fruits being formed parthenocarpically. 1960New Scientist 11 Feb. 322/3 Such parthenocarpic fruits contain no viable seed. 1965K. Esau Plant Anat. (ed. 2) xix. 586 Formation of a fruit may also occur without seed development and without fertilization, a phenomenon known as parthenocarpy. |