MET对水稻群体结构、干物质生产的影响

在水稻分蘖期和穗分化期喷施 MET,结果表明:MET 降低了植株高度,增加了下部节间的粗度,使叶片在植株上的分布更为合理,提高了植株中、下部的透光率,群体干物质生产增加,氧现为防倒增产的效果。

EFFECTS OF PLANT GROWTH RETERDANT MET ON THE ARY MATTER PRODUCTION AND POPULATION CONSTRUCTION OF RICE

Rice Plant treated with MET had an obvious effect on dry matter production of rice population.It was the most important that the po- pulation construction of rice was changed by shortening length of bo- th leaves and internode of lower stem and making tilting angle of u- pper three leaves smaller-lodging of rice plant in later stage that was effective prevented by using MET.Colony growth rate(CGR)and net assimilation rate(NAR)in the later growth stage of rice were increa- sed by using MET.The penetrating li...