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作物产量的高低与光能同化有直接的关系一般同化光能愈多,产量愈高。而光能网化高的作物,又和株型有密切联系。目前国内外生产上大面积推广的高产作物良种,都具有较好的株型结构,常称理想株型。所谓理想的株型主要是指叶、蘖、茎、同时也有节、节间、穗和根系等。一、叶的性状植物的一切绿色部分,都能进行光合作用。但是,在漫长的进化过程中,由于适应变异的结果,使叶片形成了专门进行光合作用的器官。也是形成产量的最活跃的因素。所以,高产栽培应当选用具备理想的叶部性状的品种。(一)叶片角度作物叶片的着生角度(或叶片倾角),即叶片和茎杆之间的夹角,对群体光合产量的影响极大,是影响作物产量的一个重要因素。
The level of crop yield is directly related to the assimilation of light energy. The more general assimilation light energy, the higher the yield. The light of the high network of crops, and plant type are closely linked. At present, the large-scale popularization of high-yielding crop varieties at home and abroad has good plant-type structure, often called the ideal plant type. The so-called ideal plant type mainly refers to leaves, tillers, stems, but also sections, internodes, spikes and roots. First, the traits of leaves All green parts of plants, can carry out photosynthesis. However, during the long evolutionary process, the leaves formed organs specialized for photosynthesis as a result of the adaptation. It is also the most active factor in production. Therefore, high-yielding cultivation should be selected with the ideal leaf traits varieties. (A) blade angle crop angle (or blade inclination), that is, the angle between the blade and the stem of the photosynthetic yield of a group of great influence on crop yield is an important factor.