| 甘蔗主要亲本自然条件下抗甘蔗花叶病测定 |
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| 引用本文： | 杨荣仲,周会,肖祎,吕达,廖红香,陈道德,刘昔辉,雷敬超,林垠孚.甘蔗主要亲本自然条件下抗甘蔗花叶病测定[J].中国糖料,2020(2):47-52. |
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| 作者姓名： | 杨荣仲 周会 肖祎 吕达 廖红香 陈道德 刘昔辉 雷敬超 林垠孚 |
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| 作者单位： | 广西农业科学院甘蔗研究所/农业部广西甘蔗生物技术与遗传改良重点实验室/广西甘蔗遗传改良重点实验室/中国农业科学院甘蔗研究中心;蔗糖产业省部共建协同创新中心;四川省植物工程研究院 |
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| 基金项目： | 现代农业产业技术体系项目(CARS-170105);广西科技重大专项(桂科AA17202042-2,桂科AA17202042-4);广西重点研发计划(桂科AB16380157)资助。 |
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| 摘 要： | 选用国内外102份甘蔗亲本连续3年在甘蔗花叶病高发病生态区测试其抗性表现,以了解甘蔗常用亲本对甘蔗花叶病的抗性,为甘蔗抗花叶病育种亲本选配提供参考。结果表明,甘蔗花叶病发病症状以长条纹线条花叶病为主,其次是褪绿花叶病、褪绿花叶病+长条纹线条花叶病混合类型;花叶病发病率属遗传力中等偏高性状,受到调查时期、年度和植期的影响,随着花叶病发病率的升高,甘蔗株高、有效茎数和蔗产量都将明显下降,耐寒性也将减弱。抗性评价表明102份测试亲本中,GT03-2309、GT02-761和ROC26等8份亲本表现高抗,占7.84%;GT03-713、LC03-296和GT03-557等47份亲本表现抗病,占46.08%;CP09-4257、FN39和GT04-2679等44份亲本感病,占43.14%;GT04-2724、YT93-373和YG24三份亲本高感花叶病,占2.94%。与20年前相比,抗病亲本数量增多,说明抗甘蔗花叶病育种取得了较为良好的进展。
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| 关 键 词： | 甘蔗 花叶病 田间测试 广义遗传力 |
Testing on Sugarcane Mosaic Resistance of Sugarcane Major Parents under Field Conditions |
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| Yang Rongzhong,Zhou Hui,Xiao Yi,LüDa,Liao Hongxiang,Chen Daode,Liu Xihui,Lei Jingchao,Lin Yinfu.Testing on Sugarcane Mosaic Resistance of Sugarcane Major Parents under Field Conditions[J].Sugar Crops of China,2020(2):47-52. |
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| Authors: | Yang Rongzhong Zhou Hui Xiao Yi LüDa Liao Hongxiang Chen Daode Liu Xihui Lei Jingchao Lin Yinfu |
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| Institution: | (Sugarcane Research Institute,Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement(Guangxi),Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Sugarcane Research Center,Chinese Academy of Agricultural Sciences,Nanning,Guangxi 530007;Province and Ministry Co-sponsored Collaborative Innovation Center of Sugar Industry,Nanning,Guangxi 530004;Sichuan Academy of Botanical Engineering,Zizhong,Sichuan 641200) |
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| Abstract: | To understand the resistance to sugarcane mosaic disease in commonly used sugarcane parents, and to provide reference for the selection of parents in sugarcane breeding for mosaic resistance, Testing on sugarcane mosaic disease resistance of 102 accessions of domestic and foreign sugarcane parents were carried out in highincidence ecological areas for three consecutive years. The results showed that the main symptoms of sugarcane mosaic disease were linear streak mosaic disease, followed by light and dark green patches of mosaic disease, and the mixing type of light and dark green patches of mosaic disease and linear streak mosaic disease. The incidence of sugarcane mosaic disease was a trait with middle-high heritability, and was a trait affected by investigation period,year, and crop cycles. With the increased incidence of sugarcane mosaic disease, plant height, stalk number and cane yield decline significantly, and cold tolerance became poor. Resistance evaluation showed that among the 102 tested accessions, 8 parents GT03-2309, GT02-761 and ROC26, etc., showed highly resistance, accounting for7.84%;47 parents included GT03-713, LC03-296 and GT03-557, etc., showed moderate resistance, accounting for46.08%;44 parents, included CP09-4257, FN39 and GT04-2679, etc., were susceptible, accounting for 43.14%;parents GT04-2724, YT93-373 and YG24 were highly susceptible to mosaic disease, accounting for 2.94%.Compared with the previous 20 years, the number of disease-resistant parents increased, which indicated that good progress had been made in breeding for sugarcane mosaic disease. |
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| Keywords: | sugarcane mosaic disease field test broad-sense heritability |
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