中文摘要：抗性育种工程依赖于稳定的抗性来源的鉴定。若要筛选抗性品种，首先应从田间筛选出无病系，然后通过接种进一步确定其抗性再次进行筛选。按照这种方法，本研究对60个种质系辣椒田间筛选条件下对卷叶病的抗性进行了评估。因为筛选是在自然病害条件下进行的，不能排除有逃掉或者漏掉的可能性。第一季筛选结束时，与试验中的其他品种相比，有16个品种表现出温和的病害症状或者没有症状。筛选过程又继续了3个季节，在第一季中筛选出来的抗性品种也参加下一季筛选试验，但易感品种被剔除。在筛选试验第四季结束时，筛选出了3个抗卷叶病的品种，即DLS-Sel-10、WBC-Sel-5和PBC-142。
外文摘要：Resistance breeding program relies on identification of stable resistant sources. It starts with first identifying lines free from disease when screened under field followed by their screening by challenge inoculation for further confirmation of their resistance behavior. Following this approach, in the present study 60 germplasm lines of Capsicum annuum L, one each of C. baccatum, C. chinense, C. chacoense and two of C. frutescens and were assessed for resistance to leaf curl disease under field screening. As screening was carried out under natural disease conditions, chances of escape cannot be rule out. To ascertain the response of the identified chilli lines for resistance to leaf curl disease, the experiment was undertaken including the identified resistant lines for three more consecutive seasons with susceptible lines namely Pusa Jwala as infector rows at regular intervals to confirm their resistance response. At the end of first season of screening, sixteen lines were isolated (all of C annuum species) showing mild or no disease symptoms in comparison to other lines under test. The screening process was continued for three seasons and the lines found resistant at the end of one season were screened in the next season also, while the susceptible lines were excluded from the study. At the end of four seasons of screening trial, three lines namely DLS-Sel-10, WBC-Sel-5 and PBC-142 showed resistance against leaf curl disease.
外文关键词：Chilli leaf curl disease; Field screening; Begomoviruses
作者：Srivastava, Arpita; Mangal, Manisha; Saritha, R. K.; Kalia, Pritam
作者单位：印度农业研究所
期刊名称：CROP PROTECTION
期刊影响因子：1.8339
出版年份：2017
出版刊次：10
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