Evaluation of Bread Wheat Genotypes for Stripe Rust Resistance

IF 0.5 Q4 AGRONOMY Journal of Agriculture and Environment for International Development Pub Date : 2021-06-30 DOI:10.3126/aej.v22i0.46812

P. B. Magar, S. Baidya, D. Thapa, M. Subedi, R. Basnet, K. Pant

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Abstract

Stripe rust disease is a major problem for wheat production in the hills of Nepal. To find resistance sources against this disease, 444 and 457 wheat genotypes received from National Wheat Research Program, Bhairahawa in 2018 and 2019 respectively were evaluated at Khumaltar under inoculated high disease pressure field condition. Disease was evaluated at both seedling and adult stages. In 2018, 315 genotypes showed resistance at seedling stage while 89 genotypes were having adult plant resistance (APR). Also, 71 entries showed immune response and 191 were resistant at both stages. Similarly in 2019, 233 genotypes were resistant at seedling stage and 201 were showing APR. Likewise, 35 entries were immune and 208 were resistant at both stages. Wheat genotypes with APR gene(s) can be utilized for developing durable stripe rust resistant varieties in the future. In addition, the genotypes having both stages resistant could also be used as sources of major and minor gene(s) for stripe rust resistance genotypes development in future breeding purposes.

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面包小麦抗条锈病基因型评价

条锈病是尼泊尔山区小麦生产的一个主要问题。为了寻找对该病害的抗性来源，在接种高病压大田条件下，对2018年和2019年Bhairahawa国家小麦研究计划的444和457个小麦基因型进行了评价。在苗期和成虫期对病害进行了评价。2018年，315个基因型在苗期表现出抗性，89个基因型表现出成虫抗性。在两个阶段，71个条目显示免疫应答，191个条目显示抗性。同样，在2019年，233个基因型在苗期具有抗性，201个表现出apr。同样，35个基因型在两个阶段都具有免疫力，208个基因型在两个阶段都具有抗性。具有APR基因的小麦基因型今后可用于开发耐条锈病品种。此外，具有两个阶段抗性的基因型也可以作为未来育种中抗条锈病基因型的主要和次要基因型的来源。

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来源期刊

Journal of Agriculture and Environment for International Development AGRONOMY-

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

16 weeks

期刊介绍： The Journal of Agriculture and Environment for International Development is an international, multidisciplinary journal dealing with agricultural production, food security, environment, remote sensing and natural resources evaluation, economics and social science, rural development and soil science. The Journal publishes scientific, technical and extensional papers concerning activities devoted to Developing Countries and Countries in transition. The language of the Journal is English. Starting from 2015, papers in other languages will not be accepted.