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2001～2003年对两种含hrp基因的生物工程制剂Messenger和伊力特进行了田间控制棉花黄萎病危害的药效试验,调查并分析了其对棉花生长和产量的调控作用。通过平板对峙反应和毒素敏感性测定,Messenger和伊力特对棉花黄萎病菌无抑制作用,但对棉花具有诱导抗性作用。田间试验结果表明,在棉花不同生育期,Messenger和伊力特对棉花黄萎病均表现出一定的控制作用,其中播种到初花期伊力特控制效果最好,防效为51.69%,高出对照药剂28.26%。在棉花初花期前,伊力特、Messenger对供试棉花品种的生长势影响较大,尤其伊力特处理的小区产量明显高出清水对照487.50kg/hm2,增产21.26%。
From 2001 to 2003, two bio-engineering preparations Messenger and Eritrea with hrp gene were tested in the field to control the damage of cotton Verticillium wilt. The regulation and control of cotton hibiscus growth and yield were investigated and analyzed. Messenger and Eritrea had no inhibitory effect on Verticillium dahliae, but had induced resistance to cotton through the plate stand-off reaction and the toxin sensitivity test. The results of field experiments showed that Messenger and Eritrea all showed some control effects on Verticillium dahliae at different cotton growth stages. Among them, the control effect of Eritrea was the best, the control effect was 51.69% and 28.26% . Prior to the first flowering stage of cotton, YIELD and Messenger had a significant impact on the growth potential of tested cotton varieties. In particular, the yield of the plot plotted with Elettrodiae was 487.50 kg / hm2 higher than that of fresh water control, an increase of 21.26%.