Abstract
Okra [Abelmoschus esculentus (L.) Moench] is an important vegetable of which India is the leading producer, but its yield potential is hampered due to Bhendi Yellow Vein Mosaic Virus (BYVMV) disease and insect pests like whitefly, leafhopper, and shoot and fruit borer. The present study was done to identify the stable sources of resistance. Total 44 accessions of 6 wild Abelmoschus species and 2 check cultivars of A. esculentus (Pusa Sawani and Pusa A-4) were screened under natural field conditions at Division of Vegetable Science, ICAR-IARI, New Delhi during kharif season 2015. Both the check varieties were found susceptible to BYVMV, Jassids, whiteflies, and shoot and fruit borer. Out of 44 accessions of 6 wild Abelmoschus species, 3 accessions, viz. IC306722, IC90476-1 and IC141055 were found highly resistant to BYVMV, only two accessions, viz. IC141055 and IC140986 were resistant to Jassids and only one accession 141055 was resistant to whiteflies. While all the accessions of A. tuberculatus and more than 50% of the accessions of A. manihot var. tetraphyllus and A. moschatus were found resistant to fruit borer. However, one of the wild accession IC141055 showed multiple resistance, i.e. Jassids, whiteflies and fruit borer along with resistance to BYVMV disease indicated its possible importance as source of multiple biotic stress resistance. The mentioned promising accessions can be further screened at different hotspots for confirmation and can be exploited in future breeding programmes for okra improvement.
Publisher
Indian Council of Agricultural Research, Directorate of Knowledge Management in Agriculture
Subject
Agronomy and Crop Science
Reference25 articles.
1. Anonymous, 2018. Indian Horticultural Database 2018. Retrieved from http://www.nhb.gov.in.
2. Bag M K, Gautam N, Prasad T, Pandey S, Dutta M and Roy A. 2014. Evaluation of an Indian collection of black gram germplasm and identification of resistance sources to Mungbean yellow mosaic virus. Crop Protection 61: 92–101
3. Borad V K, Puri S N, Brown J K and Butler G D. 1993. Relationship of Bemisia tabaci population density and yellow vein mosaic disease incidence in okra. Pest Management and Economic Zoology 1(1):1–14.
4. Chakraborty S, Pandey P K and Singh B. 1997. Okra enation leaf curl disease-a threat to cultivation of okra (Abelmoschus esculentus (L.) Moench). Vegetable Science 24: 52–4.
5. Dhankar S K, Dhankar B S and Yadava R K. 2005. Inheritance of resistance to yellow vein mosaic virus in an interspecific cross of okra. Indian Journal of Agricultural Science75: 287–90.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献