丰尔安对冬小麦生长的调节效应

研究了丰尔安在冬小麦上的应用效果。结果表明:小麦起身期喷施100-300mg／kg 丰尔安溶液300 kg／hm2,可有效控制小麦营养生长,抑制小麦节间伸长,降低小麦株高3．3 -5．0 cm,分别缩短基部1-3节节间长度0．6-1．7 cm、0．4-0．7 cm和0．5-0．8 cm;明显增强小麦抗倒伏能力;分别增加小麦单位面积穗数、穗粒数、千粒重和产量17．1万-27．45 万穗／hm2、0．5-1．6粒、0．2-0．6 g和4．45％-9．04％。

The Regulation Effects on the Growth of Winter Wheat by Fengeran

The application effect of the growth regulator Fengeran on winter wheat was studied. The results showed that the application of 300 kg/hm^2 of Fengeran solution with the concentration of 100 - 300 mg/kg at early jointing stage, the vegetative growth of winter wheat was effectively controlled and the elongation of node length inhibited, the plant height was reduce by 3.3 - 5.0 cm ; the 1 - 3 node length of winter wheat foundation were respectively inhibited. The first length was inhibited by 0. 6 - 1.7 cm, the second length was inhibited by 0. 4 - 0. 7 cm, the third length was inhibited by 0. 5 - 0. 8 cm. the lodging resistance capability was strengthened obviously; the panicle number per unit was increased by 1 710 000 -27 450 000 panicle/hm^2, the grain number was increased by 0. 5 - 1.6 grain, the 1 000-kernel weight was increased by 0. 2 - 0. 6 g, and increase the yield by 4.45% - 9.04%.