Main Factors Affecting Cucumber (Cucumis sativusL.) Haploid Embryo Development and Haploid Plant Characteristics
作者:
J. Przyborowski,
K. Nlemirowicz‐Szgzytt,
期刊:
Plant Breeding
(WILEY Available online 1994)
卷期:
Volume 112,
issue 1
页码: 70-75
ISSN:0179-9541
年代: 1994
DOI:10.1111/j.1439-0523.1994.tb01278.x
出版商: Blackwell Publishing Ltd
关键词: Cucumis sativus;pollen irradiation;embryo;chromosome;pollination;in vitroculture;sterility
数据来源: WILEY
摘要:
AbstractThis report gives the first detailed analysis of cucumber haploid plants and the first evaluation of genotype and season effects on haploid embryo development. Female flowers of four F1 varieties and two inbred lines were pollinated with 300 Gy‐treated pollen and three‐week old embryos were culturedin vitroon E20A medium. The variety ‘Polan’ produced the greatest number of embryos (1.34 per 100 seeds), 51 % of which were capable of further development. The number of embryos able to develop was four times higher in summer than in spring. All the plants obtained, except one, were haploids or aneuhaploids. Haploid plants grew slowly and were sterile, although they occasionally set seedless fruits. The length of the stems, leaves and guard cells was smaller than those of d
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