Abstract:

Abstract: The production in wheat growing area under rice stubble in southern Henan Province, occupies an important position in Henan province. However, the history of rice wheat production is not too idealistic, in addition to natural barriers, the wheat growth and development of the law has not really grasp, cultivation techniques are not supporting one of the reasons why it is important. In view of the area led the production of wheat varieties, research and analysis of rice tillering wheat panicle laws, the laws of panicle, grain-filling law. The results show that: (1) tiller dynamics is characterized by two peak, a peak during the winter non-stop, focus on death, cultivation and management should take the main stem panicle mainly for tillering panicle some way. (2) panicle long, long division, pre-slow, post-fast, stems, tillers, leaf overlap, and the relationship between the prevalence of the same stretch. Attention should be paid to the cultivation of one or two main stem tiller time to improve the rate of tillering panicle promote tillering panicle development, improve the seed-setting rate, for big spike tablets, to increase production. (3) 3-5d after heading flowering, the whole process of a short grain filling, from flowering to maturity, only about 35d, was slow - fast - slow growth of the S-curve, going through the formation of grain development, grain filling, the three stages of maturity; Prince cooked the end of the greatest weight, when the highest yield gains. The matter the attention of wheat breeding under rice stubble was reported.