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 Wysłany: Pon 14:13, 14 Lut 2011 Temat postu: GHD glätteisen günstig German researchers |
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,[link widoczny dla zalogowanych]
German researchers found that the mechanism of plant crown gall disease
Is negative, indicating that A62-2-1 low-nitrate in Chinese cabbage to play an important role in breeding. At different levels of nitrogen,[link widoczny dla zalogowanych], nitrate content of Chinese cabbage moderate narrow sense heritability, broad heritability was higher, indicating that the nitrate content of Chinese cabbage less affected by environmental characteristics, and is mainly controlled by additive gene effects. In theory,[link widoczny dla zalogowanych], you can plant in the early generations the phenotype under selection, but also more accurate judgments of their genotype. Nitrate content in cabbage larger proportion of genetic, so the low nitrate content can pass this trait groups in subsequent generations. Nitrogen application on nitrate content of heritability had little effect, but five parents and their offspring by the nitrate content of different nitrogen rates,[link widoczny dla zalogowanych], application of urea and some parents and hybrid combinations of nitrate content decreased, and some parents and hybrid combination of nitrate content increased, indicating that application of ammonium nitrogen on nitrate absorption and utilization of Chinese cabbage, thereby affecting the nitrate content, if you choose nitrate nitrogen,[link widoczny dla zalogowanych], nitrate nitrogen application on Chinese cabbage and its heritability impact may be different. [
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