Varietal Screening of Wheat Genotypes against Spot Blotch Disease (Bipolaris sorokiniana) Under Field Condition at Bhairahawa, Nepal

Journal of the Institute of Agriculture and Animal Science Pub Date : 2018-12-03 DOI:10.3126/jiaas.v35i1.22555

A. Pandey, R. Paudel, K. Kafle, M. Sharma, N. Maharjan, N. Das, R. Basnet

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引用次数: 5

Abstract

A field experiment was conducted to evaluate the performance of wheat genotypes against spot blotch disease from November 2016 to April 2017. Experimental field was designed in Alpha Lattice Design with 2 replications and 20 genotypes as treatments. Area Under Disease Progress Curve (AUDPC) value, days to heading, days to maturity, plant height, spike per m2, grain per spike, Thousand Kernel Weight (TKW), grain yield were examined. Negative correlation was observed between yield of different genotypes and AUDPC i.e. -0.17322. Genotype BL 4699 and NL 1247 were found to be resistant with AUDPC value 141.7 and 140.6 and yield 3.335MT/ha and 3.604MT/ha respectively. Similarly, genotype BL 4708, NL 1327 and BL 4707 were found to be tolerant with AUDPC value 567.2, 570.6 and 274.6 and yield 3.761MT/ha, 3.642MT/ha and 3.681Mt/ha respectively. So, resistant and tolerant genotypes BL 4699, NL 1247, BL 4708, NL 1327 and BL 4707 could be suggested to incorporate into the breeding program.

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尼泊尔Bhairahawa大田条件下抗斑点病小麦基因型的筛选

本试验于2016年11月至2017年4月对不同小麦基因型进行了抗斑点病田间试验。试验田采用α格设计，设2个重复，20个基因型处理。测定了疾病进展曲线面积(AUDPC)值、抽穗天数、成熟天数、株高、穗数、穗粒数、千粒重、产量。不同基因型的产量与AUDPC呈负相关(-0.17322)。基因型BL 4699和NL 1247的AUDPC值分别为141.7和140.6，产量分别为3.335MT/ha和3.604MT/ha。同样，基因型BL 4708、NL 1327和BL 4707的AUDPC值分别为567.2、570.6和274.6，产量分别为3.761MT/ha、3.642MT/ha和3.681Mt/ha。因此，可以建议将耐药和耐药基因型BL 4699、NL 1247、BL 4708、NL 1327和BL 4707纳入育种计划。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of the Institute of Agriculture and Animal Science

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