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针对东北玉米等主要作物低温冷害的防御 ,研制出了一种新型植物生长调节剂———抗低温助长剂。采用人工低温模拟试验 ,3个地点、3种浓度、不同施用期的多处理联合田间试验和示范区示范 ,证明该制剂能增加叶片可溶性糖含量 ,降低电导率 ,增加叶绿素含量 ,提高光合速率 ,增强抗低温能力。促生长、促早熟、增产效果显著 ,可使玉米等作物提早成熟 5～ 6d ,正常年增产 6 %～ 11% ,低温年增产 15 %左右。施用时以 1∶4 0 0倍液和营养生长期间两次(拔节期和大喇叭口期 )喷施为最佳方案。
For the northeast corn and other major crops cold damage defense, developed a new plant growth regulator --- low temperature extender. Experiments with artificial low temperature, three locations, three treatments at different concentrations and different application periods were conducted to demonstrate that the preparation can increase soluble sugar content, decrease conductivity, increase chlorophyll content, increase photosynthetic rate, Enhance anti-cryogenic capacity. Promote growth, promote early maturity, yield a significant effect, can make corn and other crops mature 5 ~ 6d early, the normal annual yield 6% ~ 11%, low temperature annual increase of about 15%. The best solution is to spray at 1: 400 times and during vegetative growth twice at the time of jointing (jointing and bolus).