不同基因型玉米间混作对产量的影响  

Effect of Intercropping of Different Genotypes on Yield of Maize

作　　者：赵振彪 张振国 ZHAO Zhenbiao;ZHANG Zhenguo(Shaanxi Dingbian County Agriculture and Animal Husbandry Technology Extension Center,Shaanxi Dingbian 718699 China;Dingbian County Rural Revitalization Service Center,Dingbian,Shaanxi 718699 China)

机构地区：[1]陕西省定边县农牧技术推广中心,陕西定边718699 [2]定边县乡村振兴服务中心,陕西定边718699

出　　处：《陕西农业科学》2022年第4期57-59,共3页Shaanxi Journal of Agricultural Sciences

摘　　要：不同基因型玉米间混作的栽培模式,是现代玉米生产的关键技术,是以抗性互补,育性互补,当代优势为理论基础,构建不同基因型玉米间混作复合群体,提高玉米抗逆减灾和节本增效,加快玉米由单产向籽粒生产效率转变。利用选择吉单27和金博士813两个品种进行混种处理,选择先玉335和金科玉3308两个品种进行间作处理,探究其对玉米产量的影响。结果表明,混播(吉单27+金博士813)比CK增产比例是19.23%,比金博士813增产比例是8.95%,在667 m^(2)产量、出籽率、千粒重三方面都好于吉单27和金博士813单种。间作(先玉335+金科玉3308)比CK增产比例是4.21%,比金科玉3308增产比例是18.78%,在亩产量均好于先玉335和金科玉3308单种,在出籽率、千粒重两方面差异不明显。针对定边区域玉米生产实际情况,应对气候变化带来的自然灾害,迫切需要为缓解产量损失和提高玉米的稳产性提供科学依据。因此建议,继续试验示范吉单27+金博士813(1+1)混作,加大其他不同基因型玉米间混组配示范。Maize intercropping of different genotypes is the key technology in modern maize production,which is based on theory of resistance complementary,complementary,contemporary advantages.The compound group of maize intercropping of different genotypes was established to improve the maize resistance,disaster reduction and cost efficiency,and to accelerate transformation of the maize production from yield to grain production efficiency.Jidan 27 and Jinboshi 813 were selected for mixed treatment,and Xianyu 335 and Jinkeyu 3308 were selected under intercropping treatment to explore its effect on maize yield.The results showed that the mixed sowing(Jidan 27+Jinboshi 813)increased the yield by 19.23%compared with CK,by 8.95%compared with Jinboshi 813,which was better than Jidan 27 and Jinboshi 813 in terms of yield per-667m2 seed yield and thousand grain weight.The intercropping(Xianyu 335+Jinkeyu 3308)increased the yield by 4.21%and 18.78%,respectively,compared with CK 3308.The yield per 6672 was higher than Xianyu 335 and 3308,there was no obvious difference in seed yield and 1000 grain weight.According to the actual situation of maize production in the border area,it is urgent to provide a scientific basis for alleviating the yield loss and improving the stable yield of maize.Therefore,it is suggested continuing the experiment and demonstration of Jidan 27+Jingboshi 813(1+1),and increasing the demonstration of other different genotypes.

关 键 词：玉米 间混作 抗逆减灾 产量 

分 类 号：S513[农业科学—作物学]