郑单958玉米对瓜列当种子的诱捕效果

Trapping Effect of Zhengdan 958 Maize on Phelipanche aegyptiaca Pers.Seeds

为了研究郑单958玉米对田间土壤中瓜列当种子的诱捕效果,选择无瓜列当危害地块,定量撒播瓜列当种子,划分小区,夏季种植郑单958玉米作为处理,设负对照和空白对照,玉米收获后,处理和对照小区第2年种番茄IVF3166,处理小区瓜列当寄生量比负对照和空白对照分别少23.4%和25.5%;春季种植3.3 hm^2郑单958示范地,设负对照3.3 hm^2,玉米收获后,第2年2个块地全种番茄IVF3166,示范地比对照地瓜列当出土量少39.2%。田间小区试验和大田示范试验结果显示,郑单958玉米对土壤中瓜列当有诱捕作用,可以通过轮作的方式减轻番茄地瓜列当的危害。

To study the trapping effect of Zhengdan 958 maize on Phelipanche aegyptiaca Pers.seeds in soil,non-Phelipanche aegyptiaca Pers.Plot was chosen as experimental field,Phelipanche aegyptiaca Pers seeds were sown quantitatively,the field was divided into experimental districts,Zhengdan 958 Maize seeds were sown in summer as treatment,negative control and blank control were set.After harvesting Zhengdan 958 maize,tomato IVF3166 was planted both in the treatment districts and in the control districts in the second year,the amount of parasitic Phelipanche aegyptiaca Pers in treatment plot was 23.4%and 25.5%less than that of negative control and blank control respectively;Zhengdan 958 maize were sown in demonstration plot in spring,set negative control,demonstration plot and negative control plot were both 3.3 hm 2,after maize harvest,tomato IVF3166 was planted in the second year.The amount of emerging Phelipanche aegyptiaca Pers in demonstration plot was 39.2%less than that in control plot.The results of field districts experiment and field demonstration experiment show that,Zhengdan 958 maize had a trapping effect on Phelipanche aegyptiaca Pers eeds in soil and could reduce the damage of Phelipanche aegyptiaca Pers in tomato field by rotation.