菜豆属植物对黑结病的差异反应

IF 1.2 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY
G. Ligarreto, Luz Nayibe Garzón Gutiérrez, Christian Camilo Pimentel Ladino
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引用次数: 0

摘要

黑结病是影响安第斯国家豆类生产的最具限制性的生物胁迫之一。采用温室和离体致病性试验两种疾病评价方法,对不同基因型菜豆(Phaseolus vulgaris)、多花菜豆(Phaseolus polyanthus)及其种间杂交品种对绿芽甘蓝布尔菌病的抗性程度进行了评价,为利用持久抗性提供理论依据。在温室和体外条件下,采用描述性量表和离叶法评估黑结病的严重程度。研究结果证实了分离物Ascochyta ASC 001的致病性,从而可以区分不同的基因型。对于用于估计严重性的两种方法,证实了对比抗性反应。菌株G35575抗性最强,而菌株NCB 226最敏感。区域品种Simijaca和Cabrera以及Cargamanto Blanco和Bacata对病害的反应从中间到易感呈波动趋势。在ASC系列的种间杂交中证实了抗性,这可以作为普通豆持久抗性育种计划的替代方案。受影响的叶面积百分比被确定为一个变量,可以很容易地评估,并且在体外处理和分析数字图像避免了破坏性采样的使用。该技术是这类研究中一种快速、有用和经济的工具,因为它提供了加速抗性基因型选择的可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Differential responses of Phaseolus spp. against Black node disease (Boeremia noackiana)
Black node disease is one of the most limiting biotic stresses affecting bean production in the Andean countries. The objective of the study was to evaluate the degree of resistance to Boeremia noackiana against genotypes of Phaseolus vulgaris, Phaseolus polyanthus, and their interspecific crosses using two disease evaluation methods (pathogenicity test in the greenhouse and in vitro) to contribute the generation knowledge towards the use of durable resistance. Black node disease severity was assessed using a descriptive scale and the leaf detached method under greenhouse and in-vitro conditions. The results of the study confirmed the isolate Ascochyta ASC 001 pathogenicity, allowing the different genotypes to be discriminated. A contrasting resistance response was confirmed for the two methodologies used to estimate severity. Accession G35575 (P. polyanthus) was the most resistant whereas NCB 226 (P. vulgaris) was the most susceptible. Regional cultivars Simijaca and Cabrera, together with Cargamanto Blanco and Bacata, showed fluctuations in their reaction to the disease from intermediate to susceptible. Resistance was confirmed in the interspecific crosses of the ASC series, which can be an alternative in breeding programs for durable resistance in common beans. The percent leaf area affected was identified as a variable that can be easily assessed, and the processing and analysis of digital images in vitro avoided the use of destructive sampling. This technique is a fast, useful, and economical tool for this type of studies, as it provides the possibility of accelerating the selection of genotypes with resistance.
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来源期刊
Bragantia
Bragantia AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
2.40
自引率
8.30%
发文量
33
审稿时长
4 weeks
期刊介绍: Bragantia é uma revista de ciências agronômicas editada pelo Instituto Agronômico da Agência Paulista de Tecnologia dos Agronegócios, da Secretaria de Agricultura e Abastecimento do Estado de São Paulo, com o objetivo de publicar trabalhos científicos originais que contribuam para o desenvolvimento das ciências agronômicas. A revista é publicada desde 1941, tornando-se semestral em 1984, quadrimestral em 2001 e trimestral em 2005. É filiada à Associação Brasileira de Editores Científicos (ABEC).
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