Torrid 发表于 2025-3-25 05:09:04
Methods for Inducing Mutations,ency of chlorophyll mutants in the M. generations was used as test for judging the effectiveness of the mutagens used. For the problems dealt with in the present book it is not necessary to discuss these methodological questions in detail. Many information in a summarized form is given in the . (IntLargess 发表于 2025-3-25 09:32:17
The Selection Value of Mutant Genes,represents a complex phenomenon of mutants and recombinants which is composed of a large number of different traits, most of them having not yet been studied in detail in the mutant material available. All those criteria which influence the competitiveness of the plants directly or indirectly, theirdeviate 发表于 2025-3-25 13:43:30
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The Utilization of Mutants in Crossbreeding, According to the results available in this field, it is, however, the opinion of many geneticists, that the utilization of useful mutants in crossbreeding programs is more prospective. In this way, negative features of some mutants can be eliminated and only the positive ones are utilized. MoreoverDOSE 发表于 2025-3-25 20:39:44
http://reply.papertrans.cn/47/4639/463851/463851_25.pngadmission 发表于 2025-3-26 00:45:12
Alterations of Flower Shape, Color and Function,lly conditioned flower anomaly results in sterility or a drastic reduction of fertility of the plants. A short-styled . mutant was found to be especially suited for greenhouse cultivation. Greenhouse tomatoes must be artificially pollinated, which is much easier in short-styled flowers as compared telectrolyte 发表于 2025-3-26 06:29:16
Leaf Mutants of Agronomic Interest,a tropical foliage ornamental which normally has purple-colored leaves. Mutants with bronze-colored foliage represent an increase of the genetically conditioned variability within the species which can be utilized for horticultural purposes (Das 1969). Similar findings were obtained in . (Doorenbos祖传 发表于 2025-3-26 11:50:56
Mutations Affecting the Root System, hundreds of them being of direct interest for realizing specific aims of breeding. It can be assumed that a relatively large proportion of genes of a genome controls the development and functionability of the root system of a plant. Mutations of these genes should realize distinct alterations of thRespond 发表于 2025-3-26 13:19:24
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Mutations in Vegetatively Propagated Crops and Ornamentals,eir breeding value. The problems related to this special field of mutation breeding have been discussed and reviewed by Nybom and Koch(1965);Privalov(1968);Broertjes et al.(1968); Broertjes (1969b, c); Ohba (1971). Moreover, volumes of symposia organized by the International Atomic Energy Agency in