每年春季的倒春寒，会给北方各地正在开花结果的各类果树带来不同程度的冻害。GPIT生物技术，由云南省生态农业研究所那中元研究员于20世纪90年代中期创建，全称植物基因表型诱导调控表达技术(Gene Phenotype Induction Technique)。GPIT生物制剂在高光效的作用下，可起到丰产、优质、高抗病和高抗逆的效果。为了验证其在高抗逆中的抗冻效果，我们在北方高寒地区山西省阳高县的杏树上进行了试验。结果表明，在春季突发霜冻？7℃的冻灾下，经处理的杏树树势强，落花落果少，不论在农艺性状上，还是在产量因子、产量品质和经济效益上均比对照取得了尤其明显的效果。GPIT生物制剂的这种功效，为今后高寒地区农作物的防霜抗冻走出一条新的道路。
Every year, the late spring cold will bring different degrees of freezing damage to all kinds of fruit trees that are blossoming and bearing fruits in northern China. GPIT biotechnology, founded in the mid-1990s by Na Zhongyuan, a researcher at Yunnan Institute of Ecological Agriculture, is known in full as the Gene Phenotype Induction Technique in plants. GPIT biologic preparation can have high yield, high quality, high disease resistance and high resistance under the action of high luminous ef-ficiency. In order to verify its antifreeze effect in high stress, we carried out experiments on apricot trees in Yanggao County, Shanxi Province in the northern alpine region. The results showed that the apricot trees had stronger potential and fewer fruits and flowers under the spring frost at ？7？C, and the effect was especially obvious in terms of agronomic trait, yield factor, yield quality and economic benefits. This effect of GPIT biologics will pave a new way for frost and frost prevention of crops in the future.
