鸭茅种质资源对锈病的抗性评价及越夏情况的田间调查

doi:10.11733/j.issn.1007-0435.2013.04.015

›› 2013, Vol. 21 ›› Issue (4): 720-728.DOI: 10.11733/j.issn.1007-0435.2013.04.015

鸭茅种质资源对锈病的抗性评价及越夏情况的田间调查

严海东¹, 张新全¹, 曾兵², 程良^1,3, 聂刚¹, 季杨¹, 黄琳凯¹

1. 四川农业大学草业科学系, 四川雅安 625014;
2. 西南大学荣昌校区动科系, 重庆荣昌 402460;
3. 美国罗格斯大学, 新泽西州新布伦瑞克 08817

收稿日期:2013-02-19 修回日期:2013-03-26 出版日期:2013-08-15 发布日期:2013-08-14
通讯作者: 黄琳凯
作者简介:严海东(1991- ),男,四川成都人,学士,专业为草业科学,E-mail:yanhaidong1991@163.com
基金资助:
国家自然基金(31101760 31201845);四川农业大学大学生创新计划(121062603);国家现代牧草产业技术体系(CARS-35-05)资助

Evaluating Rust Resistance and Field Investigating Over-summer Conditions of Orchardgrass (Dactylis glomerata L.) Germplasms

YAN Hai-dong¹, ZHANG Xin-quan¹, ZENG Bing², CHENG Liang^1,3, NIE Gang¹, JI Yang¹, HUANG Lin-kai¹

1. Department of Grassland Science, Sichuan Agricultural University, Ya'an, Sichuan Province 625014, China;
2. Department of Animal Science, Southwest University, Rongchang, Chongqing 402460, China;
3. Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08817, United States

Received:2013-02-19 Revised:2013-03-26 Online:2013-08-15 Published:2013-08-14

摘要/Abstract

摘要： 鸭茅(Dactylis glomerata L.)是世界优良冷季型牧草之一,但在我国亚热带地区越夏率低、且容易感染锈病,影响其产草量和品质。从越夏率、抗锈病级数、以及抗锈病与越夏率相关性这3个方面对来自于世界五大洲的258份鸭茅种质资源进行评价。结果表明:越夏率为100%的材料有78份,抗锈病级别为高抗的种质材料有49份;其中越夏率为100%且抗锈病级别为高抗的种质材料有02122, 00947, 02-104, 02-110, 01824, PI325293, PI312450, I231471, PI308794, PI269885, ZXY06P-1633, ZXY06P-2199, casfellafa, woronowii, California共15份;鸭茅抗锈病与越夏率之间的相关性很低(r=0.09876,P=0.115)。筛选出的15份种质资源可作为重要的育种材料,也可在亚热带地区作为优秀品系直接种植。研究结果也可为鸭茅抗锈病、耐热新品种的选育提供理论依据。

关键词: 鸭茅, 抗锈病, 越夏率, 种质资源

Abstract: Orchardgrass (Dactylis glomerata L.) is one of the most important cool-season forage grasses around the world. However, the majority of orchardgrass varieties have low over-summer rate and are susceptible to rust caused by Puccinia graminis Pers resulting in the losses of yield and quality in subtropical regions of China. The over-summer rates, degree of rust resistance, correlations between rust resistance and over-summer rate of 258 D. glomerata germplasm resources from five continents of the word were investigated. Results showed that the over-summer rates of 78 accessions were scored 100 percent and 28 accessions were scored high-resistance. The 15 accessions of orchardgrass named 02122, 00947, 02-104, 02-110, 01824, PI325293, PI312450, PI231471, PI308794, PI269885, ZXY06P-1633, ZXY06P-2199, casfellafa, woronowii, California were screened for high resistance and high over-summer rate. Correlation between rust resistance and over-summer rate was low (r=0.09876, P=0.115). The 15 accessions may serve as useful genetic material to breed orchardgrass varieties for high resistance to rust and high over-summer rate and can also be used as good strains for planting in subtropical regions. These results will assist in the conservation of orchardgrass germplasm and its efficient utilization in orchardgrass breeding programs.

Key words: Dactylis glomerata, Resistance to rust, Over-summer rate, Germplasm

中图分类号:

S435.12.43

严海东, 张新全, 曾兵, 程良, 聂刚, 季杨, 黄琳凯. 鸭茅种质资源对锈病的抗性评价及越夏情况的田间调查[J]. , 2013, 21(4): 720-728.

YAN Hai-dong, ZHANG Xin-quan, ZENG Bing, CHENG Liang, NIE Gang, JI Yang, HUANG Lin-kai. Evaluating Rust Resistance and Field Investigating Over-summer Conditions of Orchardgrass (Dactylis glomerata L.) Germplasms[J]. , 2013, 21(4): 720-728.

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鸭茅种质资源对锈病的抗性评价及越夏情况的田间调查

Evaluating Rust Resistance and Field Investigating Over-summer Conditions of Orchardgrass (Dactylis glomerata L.) Germplasms

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