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作物定位选种 主要是按照作物最佳遗传优势部位进行选种,可有效地防止品种退化,方法简单易行,增产显著。 玉米 最佳遗传优势部位是果穗中部,其种子花丝抽出早,受精时间也早,种子发育好,饱满,氧化酶含量高,发芽势强,出苗率高,植株生长健壮,一般可增产5—9％。 谷子 最佳部位是稳的中上部,用该
Crop location selection is mainly based on the best parts of the crop genetic selection, which can effectively prevent the degradation of varieties, the method is simple and easy, yield significant. Corn is the best genetic advantage of the middle parts of the ear, the seeds of the filaments drawn early, early fertilization, seed development is good, full, high oxidative enzyme content, strong germination, high emergence rate, robust plant growth, the general increase 5-9 %. The best part of the millet is a stable mid-upper part, using that