转折点
发表于 2025-3-23 12:19:38
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虚假
发表于 2025-3-23 14:42:16
Barley (, L.): Anther Culture and the Production of Haploidso its growing habit (Martin et al. 1976; Briggs 1978). Since 1980, annual production of barley in the world has been stable, in the range of 160–180 × 10. t. The area harvested, yield, and production worldwide and the leading countries for barley production in 1986 are listed in Table 1.
暗讽
发表于 2025-3-23 20:59:09
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建筑师
发表于 2025-3-24 00:44:03
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方舟
发表于 2025-3-24 02:35:15
V. Raghavanls Pflichtlektüre für jeden neuen Mitarbeiter in der Aerodynamik. Der Stoff ist von Praktikern erarbeitet worden, die aus einer Vielzahl von Versuchen strömungsmechanische Zusammenhänge ableiten und Strategien beschreiben.978-3-663-09217-9Series ISSN 2628-104X Series E-ISSN 2628-1058
冷淡一切
发表于 2025-3-24 10:05:56
Ultrastructure of Pollen Embryogenesis in attaining this goal. The purpose of this chapter is to review the ultrastructural cytology of pollen embryogenesis to illustrate how this knowledge has been used to gain some insight into this phenomenon. This review will concentrate on . L. (henbane; Solanaceae) and use other systems to illustrate variations.
杠杆支点
发表于 2025-3-24 13:12:22
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轻而薄
发表于 2025-3-24 17:35:17
spp.: Anther Culture Studieshodology for obtaining haploids in large numbers, in the speeding of homozygosity, in the selection of desirable genetic combinations by doubling of chromosomes, in the production of mutants from cell cultures and in protoplast isolation and somatic hybridization.
antiandrogen
发表于 2025-3-24 21:43:53
Poplars (, spp.): In Vitro Production of Haploidswth, ease of propagation, and high utility for a variety of wood fiber products (Schreiner 1959; Cram 1960; Larson and Gordon 1969; Dawson and Hutchinson 1973). In countries where natural forestry resources are limited, . species are being planted for timber (Kangle Bureau of Forestry 1976), pulp, paper, and for ecological needs of reforestation.
COM
发表于 2025-3-25 00:28:50
0934-943X ons and also for the production of homozygous plants, they are needed in large numbers. The conventional methods employed by plant breeders for their production are cumbersome, time-consuming, laborious and rather inefficient. Sometimes it may take years to produce a pure line. However, with the int