Abstract:

To determine the effect and untilization of new specially insect resistance cotton regulator “Miantaijin” in Liao basin cotton area in 2010-2011, it was tested in Liaoning Cash Crop Institute. After compare the physiological index, development process, plant character, yield and form factor, fiber quality, we concluded that being a effective specially insect resistance cotton regulator, “Miantaijin” can delay leaf senescence, enhance resistance, prevent premature senility, increase yield, without harmful effect on fiber quality, could be promotion in Liao Basin Cotton Area. But the usage and amount should be adjusted according to the climate and production practice.