Journal of Northern Agriculture ›› 2024, Vol. 52 ›› Issue (3): 128-134.doi: 10.12190/j.issn.2096-1197.2024.03.15

• Plant protection•Horticulture • Previous Articles    

Study on the field prevention and control effects of inducer against sunflower broomrape under drip irrigation condition

DUAN Rui1, SHI Shenghua2, YANG Xu1, BAO Tingting1, LI Haoyu2, LIU Zhida1, ZHANG Yukuan1, ZHANG Zhiwei1, DU Lei3, ZHAO Jun1   

  1. 1. College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot 010018,China;
    2. The Modern Agronomy and Animal Husbandry Developmental Center of Bayannur,Linhe 015000,China;
    3. Institute of Plant Protection,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China
  • Received:2024-05-16 Online:2024-06-20 Published:2024-09-13

Abstract: 【Objective】To investigate the prevention and control effect of plant inducible resistance agents on field sunflower broomrapes,and provide a new perspective for the comprehensive prevention and control of sunflower broomrapes.【Methods】The test sites were located in Siziwang Banner,Ulanqab City and Guyang County,Baotou City,Inner Mongolia. The parasitism rate and parasitism degree of sunflower broomrape were assessed at four different time points(20 th July,10 th August,15 th August,and 30 th September) using a drip irrigation system in the field. The treatments included jinmiao target,chitin and Bacillus subtilis,a combination of jinmiao target and chitin and Bacillus subtilis complex,and water as control(CK). The effects of two plant inducible resistance agents on Orobanehe cumana parasitical sunflower growth indexes and yield were investigated. 【Results】After drip irrigation with jinmiao target alone,the parasitism degrees of sunflower broomrape in both test sites was significantly lower than that of CK(P<0.05),which were reduced by 2.95,6.27,3.97 and 1.11,4.99,4.08. The plant height and yield of sunflower increased significantly in both sites(P<0.05). The plant height was increased by 39.15,36.97,20.66 and 22.50 cm. The yield was increased by 892.80 and 984.00 kg/hm2,respectively. After only drip irrigation with chitin and B. subtilis,parasitism degrees increased significantly compared with CK at different time points(P<0.05). The parasitism degrees of the two test sites increased by 5.71,3.77,1.91 and 1.36,14.12,13.03,respectively. There was no significant difference between CK and other sunflower growth indexes(P>0.05). After a combination of jinmiao target and chitin and B. subtilis drip irrigation,parasitism rates and parasitism degrees were significantly reduced compared with CK. The parasitism rate decreased by 79.60%,31.80%,19.00% and 36.67%,81.00%,35.67%,respectively. Parasitism degree decreased by 7.25%,9.69%,8.80% and 1.33%,6.01%,5.61%,respectively. Plant height,disc diameter and yield of sunflower were significantly increased compared with CK(P<0.05). The plant height was increased by 23.08,33.49 and 14.08,11.33 cm,respectively. The disc diameter was increased by 6.18 and 4.44 cm,respectively. The yield was increased by 796.80 and 835.20 kg/hm2,respectively.【Conclusion】The combination of jiaomiao target and drip irrigation can be integrated into the green prevention and control technology system of sunflower broomrapes for effective prevention and control.

Key words: Sunflower broomrape, Drip irrigation, Plant inducible resistance agents, Field prevention and control effect

CLC Number: 

  • S435.655