中国农业大学学报2025，Vol.30Issue(1)：27-37,11.DOI:10.11841/j.issn.1007-4333.2025.01.03
523份玉米自交系对禾谷镰孢穗腐病和灰斑病的抗性鉴定
Resistance evaluation of 523 maize inbred lines to Gibberella ear rot and gray leaf spot
摘要
Abstract
In order to identify maize inbred lines resistant to Gibberella ear rot and gray leaf spot in the northeast region,a precise evaluation of 523 maize inbred lines resistance to Gibberella ear rot and gray leaf spot was carried out by field inoculation from 2021 to 2023 and 2022 to 2023,respectively.The experiment adopted a randomized block design and inoculated Gibberella ear rot pathogen through the needle puncture inoculation method after 10 d of silking and gray leaf spot pathogen through the perfusion methods after 9-11 leaves stage.At the wax ripeness stage,the single plant survey method was adopted to investigate the severity level of Gibberella ear rot disease.At the late milk stage,the whole-line survey method was adopted to investigate the severity level of gray leaf spot disease.The results showed that:The inbred line'PHRE1'was stably resistant to Gibberella ear rot from 2021 to 2023.Twenty-three inbred lines including'Dan 598','JiA 1473'and'LN 1'exhibited moderate resistance or above within three years,accounting for 4.2％of the total materials.The inbred line'Dan 299'was resistant to gray leaf spot disease for two years.Sixty-seven inbred lines including'LH 217','Ji 1037'and'JiA1001'expressed moderate resistance or above in two years,accounting for 12.6％of the total test materials.By comparison analysis,a total of three inbred lines('JiA1473','A-349'and'M67')identified were resistant to the two diseases.This study provided valuable resources and a scientific basis for the cultivation and improvement of resistant maize varieties.关键词
玉米/自交系/抗性鉴定/禾谷镰孢穗腐病/灰斑病Key words
maize/inbred lines/resistance identification/Gibberella ear rot/gray leaf spot分类
农业科技引用本文复制引用
陈鸽,徐国良,刘文国,路明,王敏,周德龙,刘宏伟,张志军,苏前富,卢实,焦仁海,夏远峰..523份玉米自交系对禾谷镰孢穗腐病和灰斑病的抗性鉴定[J].中国农业大学学报,2025,30(1):27-37,11.基金项目
国家重点研发计划课题(2021YFD1201002) （2021YFD1201002）
长白山人才工程-科技创新领军人才项目(000029) （000029）
