Management of Mungbean Yellow Mosaic Virus of Urdbeanthrough Chemical and Host Plant Resistance.

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dc.contributor.advisorSahni, Sangeeta
dc.contributor.authorIqubal, Md. Jawaid
dc.date.accessioned2017-11-06T06:36:11Z
dc.date.available2017-11-06T06:36:11Z
dc.date.issued2014
dc.description.abstractUrdbean (Vigna mungo (L.) Hepper) is an important pulse crop grown worldwide. MYMV is an important disease of urdbean in India, because it causes huge losses in production of urdbean. The urdbean crop can be protected by seed treatment with imidacloprid 17.8 SL @ 5 ml/kg seed along with two foliar spray with imidacloprid 17.8 SL @ 0.03%, first spray given at just after appearance of disease and second spray after 20 day of first spray, which recorded 24.73 % disease reduction over control and brought out significant increase in the growth and yield parameters assessed resulted in maximum seed yield (2.68 g per plant). This treatment found to be cost effective and profitable among all other treatments tested and recorded highest net returns ( 14927.00/ha) with ICBR of 1:11.40. To combat this disease, eighty two genotypes were screened during summer 2013 and kharif 2013 against MYMV of urdbean. only one entry, NDU 12-1 was found to be disease free, nine genotypes (IPU 10-23, KUG 586, Mash - 338, NDU 12-300, PU 09-35, UH 07-06, Uttara, VBG 10-008, & VBN 6) found to be highly resistance and four genotypes (Kopergaon, RUG-44, VBG 09-005 and NDU 11-201) showed resistance consistently in both the seasons. However, out of 82 genotypes, only four genotypes i.e. VBN (BG) 7, IPU 2-43, KUG 586, & KUG 503 were found to be superior for seed yield as well as resistant to MYMV. Variation among 24 urdbean genotypes, showing disease free, highly resistant, resistant, moderately resistance and susceptible reaction in field screening was assessed by RAPD marker associated with MYMV resistance. All the 12 primers studied showed polymorphism. The range of polymorphism varied from 22.22 to 88.88%. A close genetic similarity was found in all the genotypes analyzed as shown by high values of similarity coefficient ranged from 0.72 to 0.96. Two major clusters were observed in the dendrogram constructed based on RAPD data. All the MYMV resistant genotypes based on our field analysis were grouped together in cluster I whereas, the susceptible genotypes were clustered together in the cluster II. Further, cluster I was divided into 2 sub clusters namely IA and IB. Cluster IA consisted of 10 genotypes viz.,VBN(BG)7, Naveen (Local resistance check) ), LRB332, KUG503, PU09-35, IPU10-23, UH08-05 and Uttara (Highly resistance genotype), NDU12-300 and NDU11-202 which were found to be free or highly resistance in one of season or both during screening. Cluster IB consisted of remaining 11 genotypes, in which two (IGKU02-1 and KU1106) were found to be moderately resistant in one season and rest 9 genotypes found to be resistant or highly resistant in one of the season. Cluster II includes TAU-1, TAU-4 and LBG623 (Local susceptible check) which were highly susceptible. The results indicated that there is close genetic similarity between the genotypes of urdbean based on the study.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810034759
dc.keywordsUrdbean, Vigna mungo, Mungbean Yellow Mosaic Virus, Chemical control, Host plant resistanceen_US
dc.language.isoenen_US
dc.pages63+xen_US
dc.publisherRajendra Agricultural University, Pusa (Samastipur)en_US
dc.subPlant Pathologyen_US
dc.subjectnullen_US
dc.themeDisease control in Urdbeanen_US
dc.these.typeM.Scen_US
dc.titleManagement of Mungbean Yellow Mosaic Virus of Urdbeanthrough Chemical and Host Plant Resistance.en_US
dc.typeThesisen_US
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