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本文对10个不同耐阴级别的大豆品种,在相同的栽培措施下单作和与玉米间作,于鼓粒初期进行了叶片形态特征和解剖学结构的观察,分析了叶片形态特征和解剖结构与抗倒伏性和耐阴性的关系。结果表明:1.叶大小、叶形、叶枕的长和宽、上下表皮的茸毛数与大豆的耐阴性没有直接关系;与玉米间作的大豆,宜选育叶片大小中等、披针形或短椭圆形、叶柄短而粗、叶色深绿的品种。2.叶片厚度和栅栏组织厚度对大豆耐阴性都起重要作用。而后者更为重要;3.叶片厚度、栅栏组织细胞层数和单位长度内细胞数目、栅栏和海绵组织厚度,间作后,这些特征变异不大;4.间作后单位面积脉侧叶肉细胞数目有增多趋势的品种,耐阴性好。
In this paper, we observed the morphological and anatomical structures of 10 soybean cultivars with different shade tolerance levels under the same cultivation practices and intercropping with maize. The morphological and anatomical structures of the leaves were observed during the initial stage of drumming. Lodging resistance and resistance to negative relations. The results showed that: 1. Leaf size, leaf shape, length and width of leaf pillow, number of hair on upper and lower epidermis are not directly related to the tolerance of the soybean; with soybean intercropped with corn, the leaf size should be medium, lanceolate or short Oval, petiole short and thick, dark green leaf color varieties. Leaf thickness and palisade tissue thickness play an important role in the tolerance of soybean. While the latter is more important; 3. Leaf thickness, number of cell layers in palisade and the number of cells per unit length, thickness of fence and sponge tissue, after intercropping, these characteristics have little variation; 4. The number of mesophyll cells per unit area after intercropping Increase the trend of varieties, good resistance to negative.