VDAL、Harpin拌种对马铃薯生长发育的影响  

Effects of Seed-Tuber Dressing by VDAL and Harpin on Potato Growth and Development

作　　者：淳俊[1] 桑有顺[1] 陈涛[1] 冯焱[1] 李倩[1] 张庆沛 CHUN Jun;SANG Youshun;CHEN Tao;FENG Yan;LI Qian;Zhang Qingpei(Chengdu Academy of Agricultural and Forestry Sciences,Chengdu 611130)

机构地区：[1]成都市农林科学院,成都611130

出　　处：《中国农学通报》2022年第20期6-12,共7页Chinese Agricultural Science Bulletin

基　　金：四川省科技厅“突破性薯类育种材料和方法创新及新品种选育”(2021YFYZ0019);国家马铃薯产业技术体系成都综合试验站项目(农科教发[2017]10号);国家现代产业技术体系四川马铃薯创新团队项目“马铃薯原原种繁育关键技术研究岗位”(川农业函[2019]422号)。

摘　　要：马铃薯采用种薯切块播种,拌种十分必要,但现有方法多针对病虫害预防、侧重于化学药剂封闭。为满足马铃薯抗性诱导、绿色投入品增加和农业绿色发展的需求,以马铃薯早熟品种‘希森3号’为材料,选用了通过工程菌发酵工艺制得的VDAL和Harpin免疫诱导蛋白干粉拌种,分别以不同浓度进行种薯处理,与常规化学药剂拌种方法进行比较,用调查统计的方法,获得不同处理对种薯萌发、出苗、植株生长、块茎发育和产量性状等方面的试验数据,综合评价其对马铃薯生长发育的影响。其中,Harpin 0.5ppm和VDAL 3ppm表现较好,与CK相比,早期出苗率提高20%以上,株高分别增高13.73%和9.30%,块茎膨大期的单株块茎重量增加20%以上,产量分别提高20.04%和12.99%。本研究确定了利用VDAL和Harpin进行种薯处理的有益效果,为马铃薯拌种新方法和新产品的研发提供了参考。Seed-tuber dressing is a necessity in potato cultivation because of cubed potato sowing. However,the existing methods mainly aim at the prevention of diseases and insect pests and focus on chemical agent closure. To meet the needs of induced resistance and green input increase in potato production and the development of green agriculture, we chose early-mature potato variety‘XiSen No.3’as the test material, and took the fermentation products VDAL and Harpin immune-induced protein dry powder which were made of engineering bacteria for seed-tuber dressing. Compared with the conventional chemical agent seed-tuber dressing method, we set up different concentrations of VDAL and Harpin, obtained the test data of potato germination, seedling emergence, plant and tuber growth and yield by investigation and statistics, and carried out the comprehensive evaluation of the effects of VDAL and Harpin on potato growth and development.0.5 ppm Harpin and 3 ppm VDAL had better effects on the early emergence rate, which was above 20% higher than that of CK. The plant height increased by 13.73% and 9.30% respectively, tuber weight per plant in tuber expansion period increased by more than 20%, and the yield increased by 20.04% and 12.99% respectively compared with those of CK. This study identified the effects of seed-tuber dressing by VDAL and Harpin and could provide reference for the development of new methods and new products of potato seed-tuber treatment.

关 键 词：马铃薯 VDAL HARPIN 拌种 工程菌发酵产物 

分 类 号：S532[农业科学—作物学]