绿豆相关真菌病原菌的检测及防治

IF 0.7 4区 农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY
H. Abbas
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引用次数: 0

摘要

研究了链格孢对不同绿豆基因型的破坏潜力,并在体外和体内条件下通过合适的杀菌剂对其进行了处理。将50种不同基因型的绿豆种子按品系播种。每个品系有15个重复。对所有基因型的疾病发病率和疾病强度百分比进行了访问。在所有基因型上都观察到了感染,没有发现一种是免疫的。发现14个品系是最易感的(14114、14117、14128、14198、14203、14205、14250、14265、14266、14295、14305、14306、14368、14438)。在所有基因型上都观察到了感染,没有发现一种是免疫的。最大PDI(疾病强度百分比)为35.30%,最小为2.43%。对于离体叶片测定,制备105个分生孢子/mL的分生孢子悬浮液并喷洒在离体叶片上。结果显示,1430614198个基因型的感染率最高,141281423个基因型感染率最低。病变面积最大的分别为14306、14198(0.23、0.22),最小的分别为14128(0.12)。对于管理实验,不同的杀菌剂;在体外和体内条件下测试了丙环唑(Tilt)、丙二醇(Antracol)、地芬康唑(Score)、甲基托布津(Topsin M)、锰锌(Dithane M45)。随着杀菌剂浓度的增加,菌丝生长显著下降。在体外条件下,最高浓度(1000ppm)的丙环唑对菌丝生长的抑制百分比最大。与对照治疗相比,观察到疾病发生率显著下降。丙环唑和PDC的发病率最低(10.34),而甲基托布津的发病率最高(25.46)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Detection of fungal pathogen, Alternaria alternata associated with mungbean and its management
The damaging potential of Alternaria alternata on different mungbean genotypes was accessed and its management was done under in vitro and in vivo conditions through suitable fungicides. Seeds of fifty different mungbean genotypes were sown in lines. There were fifteen replications for each line. The data on disease incidence and percent disease intensity were accessed on all the genotypes. Infection was observed on all genotypes, none of them were found to be immune. Fourteen lines were found to be the most susceptible (14114, 14117, 14128, 14198, 14203, 14205, 14250, 14265, 14266, 14295, 14305, 14306, 14368, 14438). Infection was observed on all genotypes, none of them were found to be immune. The maximum PDI (Percent Disease Intensity) was recorded 35.30% while minimum was 2.43%. For detached leaf assay, the conidial suspension of 105 conidia/mLwas prepared and sprayed on detached leaves. The results revealed that maximum infection percentage was observed in 14306, 14198 genotypes while minimum was observed in 14128, 14203. The lesion area was found to be maximum in 14306, 14198 (0.23, 0.22) while minimum in 14128 (0.12) respectively. For management experiments, different fungicides; Propiconazole (Tilt), Propineb (Antracol), Difenconazole (Score), Thiophanate methyl (Topsin M), Mancozeb (Dithane M45) were tested under in vitro and in vivo conditions. Significant decrease in mycelial growth with the increase in concentration of fungicides was observed. Percent inhibition of mycelial growth was maximum in Propiconazole at its highest concentration (1000 ppm) under in vitro conditions. A significant decline in disease incidence was observed as compared to control treatment. The minimum percent disease incidence was recorded in Propiconazole (10.34) with PDC (67.31) while the maximum percent disease incidence was observed in Thiophanate methyl (25.46). So, Propiconazole could be used successfully for the management of A. alternata under field conditions.
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来源期刊
Pakistan Journal of Agricultural Sciences
Pakistan Journal of Agricultural Sciences AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
1.80
自引率
25.00%
发文量
18
审稿时长
6-12 weeks
期刊介绍: Pakistan Journal of Agricultural Sciences is published in English four times a year. The journal publishes original articles on all aspects of agriculture and allied fields.
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