Distribution of and damage caused by yellow stunt and root rot of Astragalus adsurgens in five northern provinces of China

Abstract

Abstract: The survey was carried out in the main production area of standing milkvetch (Astragalus adsurgens) in five provinces of northern China. It indicated that yellow stunt and root rot of A. adsurgens occurred in Huanxian County of Gansu, Yanchhi County of Ningxia, Hengshan county of Shaanxi, Songshan Zone and Aohanqi of Inner Mongonia (except Jianping County of Liaoning province). Disease incidences were 5.7%-82.6%, and disease indexes were 2.7-53.7. The percentages of plants with the same grade of disease severity varied from site to site. Compared with healthy plants, shoot numbers of diseased plants increased 16.7%－63.7%, and dry matter per plant decreased 8.5%-32.9％. Plant density, forage yield, dry matter and shoot number per plant at one study site were different from the others. In Huanxian County of Gansu Province disease incidence was the highest of the sites investigated and plant density and forage yield were significantly (P<0.01) negatively correlated with the disease incidence and disease index, respectively. The factors associated with disease incidence are discussed, and some suggestions for disease control are given.

CLC Number:

LI Yan-zhong, NAN Zhi-biao, ZHANG Zhi-xin, LIU Yong-ru, GAO Xin-ye, ZHEN Jian-xun. Distribution of and damage caused by yellow stunt and root rot of Astragalus adsurgens in five northern provinces of China[J]. Acta Prataculturae Sinica, 2011, 20(2): 39-45.

References

[1] 李毓堂. 确保我国粮食安全的战略途径——发展牧草绿色蛋白质饲料,减少饲料用粮[J]. 草业科学, 2009, 26(2): 1-4.
[2] 任继周. 三鹿奶粉事件是忽略草业的直接后果[J]. 草业科学, 2009, 26(7): 1.
[3] 山仑, 徐炳成. 黄土高原半干旱地区建设稳定人工草地的探讨[J]. 草业学报, 2009, 18(2): 1-2.
[4] 王俊, 刘文兆, 钟良平, 等. 长期连续种植苜蓿草地地上部分生物量与土壤水分的空间差异性[J]. 草业学报, 2009,18(4): 41-46.
[5] 苏盛发. 沙打旺[M]. 北京: 农业出版社, 1985: 1-32.
[6] 南志标, 刘若. 我国五省(区/市)的沙打旺病害及其分布特征[J]. 草业科学, 1997, 14(6): 30-34.
[7] 南志标. 陇东黄土高原栽培牧草真菌病害调查与分析[J]. 草业科学, 1990, 7(4): 30-34.
[8] 尹亚丽, 南志标, 李春杰. 沙打旺病害研究进展[J]. 草业学报, 2007, 16(6): 129-135.
[9] Li Y Z, Nan Z B. First report of yellow stunt and root rot of standing milkvetch caused by Embellisia sp. from China[J]. New Disease Reports, 2007 (http: //www.bspp.org.uk/ndr/july2007/2007-19.asp).
[10] Li Y Z, Nan Z B. First report of yellow stunt and root rot of standing milkvetch caused by Embellisia sp. from China[J]Plant Pathology, 2008, 57(4): 780.
[11] Li Y Z, Nan Z B. A new species of Embellisia causing a disease of standing milk-vetch in China[J]. Mycologia, 2007, 99(3): 406-411.
[12] Li Y Z, Nan Z B. Nutritional study on Embellisia astragali, a fungal pathogen of milk vetch (Astragalus adsurgens)[J]. Antonie van Leeuwenhoek International Journal of General and Molecular Microbiology, 2009, 95(3): 275-284.
[13] Li Y Z, Nan Z B. Symptoms and etiology of new disease, yellow stunt and root rot of standing milk-vetch in Northern China[J]. Mycopathologia, 2007, 163(6): 327-334.
[14] 李彦忠. 沙打旺黄矮根腐病的研究[D]. 兰州: 兰州大学, 2007.
[15] Li Y Z, Nan Z B, Hou F J. The roles of an Embellisia sp. causing yellow stunt and root rot of Astragalus adsurgens and other fungi in the decline of legume pastures in northern China[J]. Australasian Plant Pathology, 2007, 36: 397-402.
[16] 任继周. 分类、聚类与草原类型[J]. 草地学报, 2008, 16(1): 4-10.
[17] 方仲达. 植病研究方法 (第三版)[M]. 北京: 中国农业出版社, 1998.
[18] 陈平雁. SPSS 13.0统计软件应用教程[M]. 北京: 人民卫生出版社, 2006.
[19] 侯天爵.我国北方草地病害调查及主要病害防治[J]. 中国草地, 1993, 3: 56-60.
[20] 侯天爵. 内蒙古地区的牧草病害及防治[A]. 见: 南志标, 李春杰. 中国草类作物病理学研究[M]. 北京: 海洋出版社, 2003: 11-17.
[21] 程积民, 邹厚远. 黄土高原沙打旺草地群落生态度[J]. 草业学报, 1993, 2(4): 64-71.
[22] 邹厚远, 鲁子瑜, 关秀琦, 等. 黄土高原草地生产持续发展研究II. 补种沙打旺对退化草地演替的影响[J]. 水土保持学报, 1994, 1(3): 61-68.
[23] 孙启忠, 桂荣, 那日茶, 等. 赤峰地区不同生长年限沙打旺生产力研究[J]. 中国草地, 1999, 5: 29-34.
[24] 孙启忠, 桂荣. 科尔沁沙地沙打旺草地衰退规律与恢复技术研究[J]. 草地学报, 2000, 8(4): 253-261.
[25] 刘爱萍, 孙启忠, 胡俊, 等.沙打旺根腐病病原生物学的研究[J].中国草地, 2003, 25(2): 72-74.
[26] 周洪友, 杨合同, 唐文华. 沙打旺根腐病发生及病原菌鉴定[J].草地学报, 2004, 12(4): 285-297.
[27] 郑双悦, 潘建梅, 谢秉仁, 等.沙打旺根腐病及防治[J].中国草地, 2004, 26(4): 57-61.
[28] Yin Y L, Nan Z B, Li C J, et al. Root-invading fungi of milk vetch on the Loess Plateau, China[J]. Agriculture, Ecosystems & Environment, 2008, 124: 51-59.
[29] 兰平, 李文凤, 朱水芳, 等. 甘薯丛枝病植原体的PCR检测[J]. 植物学通报, 2001, 18(2): 210-215.
[30] 李正跃, 孙跃先, 严乃胜, 等. 烟蚜传播云南烟草丛枝病研究[J]. 中国烟草学报, 2000, 6(2): 72-75.
[31] 刘涛, 蔡红, 赵丹, 等. 紫花苜蓿丛枝病植原体的分子检测及鉴定[J]. 植物病理学报, 2007, 37(4): 362-367.
[32] Kilaru A, Hasenstein K H. Development and pathogenicity of the fungus Crinipellis perniciosa[J]. Phytopathology, 2005, 95: 101-107.
[33] Scarpari L M, Meinhardt L W, Mazzafera P, et al. Biochemical changes during the development of witches’ broom: The most important disease of cocoa in Brazil caused by Crinipellis perniciosa[J]. Journal of Experimental Botany, 2005, 56: 865-877.
[34] 薛振南, 黄式玲, 全桂生, 等. 毛竹丛枝病病原研究[J]. 广西农业生物科学, 2007, 26(3): 751-756.
[35] 王金生. 分子植物病理学[M]. 北京: 中国农业出版社, 1999: 29-38.
[36] 南志标. 建立中国的牧草病害可持续管理体系[J]. 草业科学, 2000, 9(2): 1-9.