Journal of Henan Agricultural Sciences ›› 2022, Vol. 51 ›› Issue (2): 28-36.DOI: 10.15933/j.cnki.1004-3268.2022.02.004

Special Issue: 小麦抗病性分析专题

• Crop Cultivation & Genetic Breeding • Previous Articles     Next Articles

Optimization of Wheat Breeding Technology System for Resistance to Fusarium Head Blight in South Huang‑Huai Wheat Region

LI Zhengling,ZHANG Yu,HAN Liupeng,WANG Yongxia,FANG Yuhui,HU Lin,XU Weigang   

  1. (Henan Academy of Crops Molecular Breeding/Key Laboratory for Wheat Biology of Henan Province/Key Laboratory for Innovation and Improvement of Triticeae Germplasm Resources of Henan Province,Zhengzhou 450002,China)
  • Received:2021-08-07 Published:2022-02-15 Online:2022-04-15

黄淮南部麦区小麦抗赤霉病育种技术体系优化

李正玲,张煜,韩留鹏,王永霞,方宇辉,胡琳,许为钢
  

  1. (河南省作物分子育种研究院/河南省小麦生物学重点实验室/河南省麦类种质资源创新与改良重点实验室,河南 郑州 450002)
  • 通讯作者: 胡琳(1961-),女,重庆人,研究员,博士,主要从事小麦品种遗传改良研究。E-mail:hulin209@163.com
  • 作者简介:李正玲(1981-),女,河南新乡人,助理研究员,硕士,主要从事小麦抗病育种研究。E-mail:zhangyu6786@sina.com。张煜为同等贡献作者
  • 基金资助:
    国家重点研发计划项目(2017YFD0100702);河南省重大科技专项(201300110800);河南省农业科学院优秀青年科技基金项
    目(2022YQ18);河南省农业科学院自主创新基金项目(2021ZC77,2017ZC01)

Abstract: In order to further optimize the wheat breeding technology system for resistance to Fusarium head blight(Fhb)and the large‑scale resistance identification technology in the south of Huang‑Huai wheat zone,the wheat varieties with different resistance to Fhb(high resistance,moderate resistance,moderate susceptibility,high susceptibility)were used,the incidence and severity of disease by three frequently used inoculation methods with different inoculation amount were compared under the climatic conditions of the south of Huang‑Huai wheat zone,and limited backcross combined with marker‑assisted selection breeding and haploid breeding were used to select resistant cultivars.The results showed that the optimum inoculation amount for artificial soil surface inoculation method was 120 kg/ha,and the diseased grains should be scattered evenly between wheat rows twice in one month before heading.The optimum inoculation concentration for artificial spray inoculation method was 104/mL,and the conidial suspension should be sprayed on the wheat spike with the amount of 100 mL/m2 at the early flowering stage.The optimum inoculation amount for single spikelet inoculation method was 15—20 μL(105/mL),and the conidial suspension should be injected to a spikelet in the middle of spikes at the early flowering stage.The Fhb‑resistant genes Fhb1 and Fhb7 were introduced into the high‑yield wheat cultivar Zhengmai 1860 by the method of limited backcross and marker‑assisted selection,and new wheat lines with better resistance than the recurrent parent were bred based on field resistance identification and agronomic traits selection.By comparing the comprehensive performance of haploid breeding progenies of different types of parents,we considered that it was more easily to breed cultivars with high yield and Fhb resistance using hybrid materials with balance between yield and Fhb resistance.

Key words: Wheat, Fhb(Fusarium head blight)?resistant breeding, Identification technology, Breeding system, South of Huang?Huai wheat zone

摘要: 为了进一步优化黄淮南部麦区小麦抗赤霉病育种技术体系及抗性育种所需的规模化抗性鉴定技术,选择不同赤霉病抗性品种(高抗、中抗、中感、高感品种),在黄淮南部麦区气候条件下对常用的3种人工接种赤霉病菌方法(病粒土表接种、孢子悬浮液喷雾接种、单小花滴注接种)不同接种量的发病效果进行比较,并采用有限回交结合分子标记辅助选择育种技术和单倍体育种技术进行抗赤霉病品种选育。结果表明,病粒土表接种适宜采用的接种量为120 kg/hm2,在小麦抽穗前1个月分2次均匀撒于小麦行间;孢子悬浮液喷雾接种适宜选择孢子悬浮液浓度为104个/mL,在小麦扬花初期以100 mL/m2的喷施量喷于小麦穗部;单小花滴注接种适宜使用15~20 μL浓度为105个/mL的孢子悬浮液,于小麦扬花初期注射到麦穗中部的小穗中。采用有限回交结合分子标记辅助选择育种技术将抗赤霉病基因Fhb1Fhb7 导入高产小麦品种郑麦1860中,结合田间抗性鉴定和农艺性状选择创制出赤霉病抗性较轮回亲本(郑麦1860)明显提高的小麦新品系。通过比较不同类型亲本的单倍体育种后代,认为在丰产性和抗病性兼顾的材料之间组配杂交组合开展抗赤霉病单倍体育种较易选择出丰抗结合的抗赤霉病品种。

关键词: 小麦, 抗赤霉病育种, 鉴定技术, 育种体系, 黄淮南部麦区

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