养殖与种植专家-农业户网
>您当前的位置:首页 > 作物 > 其它

88必发手机客户端下载

时间:2014-03-08 09:56:45  来源:  作者:

项目来源 : 美国 
项目名称 : 评价燕麦种质资源对杆锈病的抵抗性 
承担机构 : Aberdeen, Idaho 
项目编号 : 5366-21000-027-04 
起止时间 : 2007.8-2009.9 
项目成员 : Harold E Bockelman 
联系方式 :
Aberdeen, Idaho
Agronomist
[email protected] Harold dot Bockelman at ars dot usda dot gov
Phone: (208) 397-4162 ext. 112
Fax: (208) 397-4165
1691 S 2700 W
ABERDEEN, ID, 83210 
资助机构 : 美国农业部 
项目简介 :
目标:
评价全国范围内的10200个小颗粒(NSGC)燕麦种质资源对杆锈病(由小麦白粉病病菌蚜引起)的抵抗性。
方法:
评估过程将包括所有可用的全国小籽粒收藏资源中的栽培燕麦和燕麦,我们将于11月在路易斯安那州立大学的本胡尔农场种植这些资源,每种资源将种植在4 个样地中且不超过100个,毗邻每个范围的将是一个广泛的传播品种以及另一种敏感的品种资源。在3月1日左右的时候,为每种资源使用阿叶杀菌剂,以此来限制冠锈病,但不能抑制SR。每块样地将包括大约50个基因库来表现差异性和进行种植资源不同类型的测试。在完成每个周期之后,收集到的数据将被添加到种质资源评价网(GRIN)中。Formerly 5366-21000-022-08S (4/08). 
研究88必发手机客户端下载 :
2007 Annual Report
1a.Objectives (from AD-416)
Evaluate 10,200 National Small Grains Collection (NSGC) cultivated oat (Avena sativa) accessions for reaction to stem rust (incited by Puccinia graminis f.sp. avenae).
1b.Approach (from AD-416)
Evaluations will include all available accessions of the cultivated oat, Avena sativa, in the National Small Grains Collection. Planting will be done in November at the Ben Hur Farm, LSU. Each accession will be planted in a 4' plot on 14" centers within ranges of 100. Adjacent to each range will be a range of spreader cultivars which will be individual 4' rows of the cultivars Trophy, TAM-O-405, and another SR-susceptible cultivar. A foliar fungicide will be applied to the ranges of accessions (but no the spreads) around March 1 to suppress crown rust, but not inhibit SR. The plots will also include about 50 genetic stocks to serve as differentials and race-testers. As each cycle is completed, data collected will be added to the Germplasm Resources Evaluation Network (GRIN).
3.Progress Report
This report serves to document research conducted under a specific cooperative agreement between ARS and Louisiana State University – Stephen Harrison. Additional details of research can be found in the report for the parent project, 5366-21000-022-00D, “Small Grains Genetic Resource Management”. The location at Baton Rouge is an ideal setting for large-scale rust screening of the NSGC oat collection. The research farm is located in the flood-plain on the banks of the Mississippi River. The weather is warm and wet, and provides an ideal environment for development of oat stem (Puccinia graminis f.sp. avenae) and crown rust (Puccinia coronata). Fog and dew are very common in the winter and spring, which provides the necessary free moisture for spore germination and disease development. A total of 11,021 entries were included in the nursery, including 10,300 NSGC Avena sativa accessions, crown and stem rust differentials spaced throughout the field, and breeding lines from programs in North Dakota, Minnesota, Illinois, and Ottowa. The accessions were arranged into blocks of 2000 rows each. Each block was 19 passes wide x 6 rows/pass x 20 ranges deep=114 rows wide, where six rows were planted at a time. Each range contained 100 accessions, 11 borders, and 4 marker rows. Differential lines and material of specific interest were scattered throughout the nursery. Every third range was entirely stem rust spreader material (mix of Trophy and Chapman). A spreader mix was planted across both sides of the field to ensure uniform inoculum spread. The nursery was planted in early December to permit optimum growth of winter and spring types. A single 1/2-rate of propaconizole (Tilt) was applied at early boot stage to delay the development of crown rust until temperatures warmed enough to equally favor development of stem rust. The winter of 2006-07 was warm with high rainfall amounts in January followed by a dry spring. Oat stem rust from natural inoculum first appeared in spreader rows in mid winter on the susceptible variety ‘Brooks’. Stem rust appeared on ‘Trophy’ in March and continued to increase in severity through April. Since Trophy was resistant to stem rust prior to 2004, it is assumed that the stem rust on Trophy are the isolates with greater virulence genes that are of interest in this study. Crown rust developed in March and was severe on susceptible lines by early April. Stem rust continued to develop on Trophy and spread throughout the nursery. Most of the NSGC oat accessions in the nursery were quite susceptible to crown rust. By late spring (mid-April) approximately 75% of the accessions had severe crown rust infections. All accessions were rated for crown rust reaction in early April. Stem rust reaction was recorded in late April. Data will be entered in the Germplasm Resources Information Network (GRIN). Those accessions that appeared to have resistance to crown and/or stem rust were identified and will be re-evaluated in a replicated design during the 2007-08 season. Monitoring of activities in this agreement were accomplished by conference telephone conversations and e-mail. Dr. J.M. Bonman and Dr. E Jackson.
6.Technology Transfer 

    共有条评论发表评论
    用户名: 密码:
    验证码: 匿名发表
    CopyRight 农业户 http://www.nongyehu.com 版权所有
    吉ICP备11001780号-1