雄辩
发表于 2025-3-25 05:19:25
E. R. Schäfer,K. A. Bushe,Th. Deftereosg sections as: 1) successes of breeding self-pollinated crops, 2) equipment modernization, 3) impact of recurrent selection, 4) implementation of rapid generation advance, 5) a recent contribution from cytogenetics, and 6) a contribution from cereal technology.
厌倦吗你
发表于 2025-3-25 08:23:27
Das Aufgabengebiet des Chirurgenars history of the use of induced mutations in plants a wide range of techniques and approaches have been developed to increase the probability of finding desirable mutants. For example, the traditional methods employing mutagenic chemicals and radiation have been supplemented by the use of in-vitro culture and transposable elements.
乳白光
发表于 2025-3-25 12:16:33
Nathalie Dossetto,Philippe Rousselinduced to regenerate. The induction and development of shoots on leaf explants occurs in the presence of kanamycin, and the majority of the callus and shoots produced contain the gene for kanamycin resistance and express that phenotype. Large numbers of transgenic plants can be produced using this method.
统治人类
发表于 2025-3-25 16:03:40
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星球的光亮度
发表于 2025-3-25 22:18:29
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厌食症
发表于 2025-3-26 03:27:17
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草率女
发表于 2025-3-26 06:57:49
Transformation and Regeneration of Non-Solanaceous Crop Plants,induced to regenerate. The induction and development of shoots on leaf explants occurs in the presence of kanamycin, and the majority of the callus and shoots produced contain the gene for kanamycin resistance and express that phenotype. Large numbers of transgenic plants can be produced using this method.
合乎习俗
发表于 2025-3-26 09:29:31
Wheat X Maize and Other Wide Sexual Hybrids: Their Potential for Genetic Manipulation and Crop Imprver, goes on to argue that the degree of sterility in crosses is . a specially endowed quality but is highly variable, arising through the processes of natural selection by the accumulation of what we would now call genetic differences.
Obligatory
发表于 2025-3-26 14:16:49
Plant Transformation to Confer Resistance Against Virus Infection,y expressing a gene that encoded virus capsid protein (Powell-Abel et al., 1986). Although seeds containing resistance genes have not yet reached the market place, the potential impact on crop production may be substantial.
助记
发表于 2025-3-26 18:25:13
Plant Breeding and the Value Contributed to Cereal Grain and Oilseed Production in Western Canada,rta. Between 1978 and 1988 the value of these crops ranged from $4 billion to $8 billion. The extreme variation in the annual crop value is primarily related to; droughts in 1980, 1984 and 1988; record production levels in 1981, 1982 and 1986; record high prices in 1980 and 1981 and twenty year low