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首页> 外文期刊>Plant disease management reports PDMR >Field evaluation of maturity group V LibertyLink soybean cultivars to Cercospora leaf blight, frogeye leaf spot, Septoria brown spot, and target spot in east MS, 2016
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Field evaluation of maturity group V LibertyLink soybean cultivars to Cercospora leaf blight, frogeye leaf spot, Septoria brown spot, and target spot in east MS, 2016

机译：对成熟集团V Libertylink大豆品种对Cercospora Lea Lea Lea Lea Lea Lea Lea Leaf的野外评估，Frogeye叶片斑，Estogria棕色点和东部Ms，2016年的目标点

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A field evaluation of 12 maturity group V LibertyLink soybean cultivars to Cercospora leaf blight (CLB), frogeye leaf spot (FLS), Septoria brown spot (SBS), and target spot (TS) was performed at Brooksville, MS. Soybean cultivars were planted in a Brooksville silty clay soil on 30 Apr. The previous crop was corn. Plots consisted of three rows of soybean, spaced 19-in. apart, planted with 6 seed per foot of row and trimmed to a final length of 14.5 ft. The experimental design was a randomized completeblock with three replications. Plots were not irrigated. Field evaluations for the presence of foliar disease were conducted at approximately R6 using a 0 to 9 scale whereby 0=no disease and 9=excessive disease symptoms. Leaf surface area affected was evaluated for FLS while CLB was rated based on the presence of disease on leaves (0 to 5), petioles (6), and on pods and stems (7 to 9) based on disease intensity as assessed by coloration of plant material (leaves with distinct purple coloration and petioles, pods and main stems with purple to near black coloration). Septoria brown spot was rated in a similar fashion based on the presence of the disease within the plant canopy so that 0 to 3 indicated the presence in the lower canopy, 4 to 5 in the middle canopy, 6 to 8 in the upper canopy, and 9 indicative of extensive defoliation throughout the entire plant canopy and the disease in the upper most canopy. Target spot was rated in a similar fashion to the Septoria brown spot assessments with disease being rated on a whole plot basis based on the presence of the disease within segments of the plant canopy using a 0 to 9 scale. Plots were harvested on 26 Sep by harvesting all three rows of soybean. Yield was calculated by standardizing moisture to 13%.Disease rating and yield data were analyzed using the SAS GLM procedure (Version 9.3, SAS Institute, Cary, NC). Means separation was conducted using Fisher's protected least significant difference at P=0.05.
机译：在Brooksville，MS在Brooksville进行了对CercoSpora叶片枯萎（CLB），静止叶斑（FLS），静止叶斑（FL），静止叶斑（SB）和靶点（TS）进行植物孢子叶大豆品种的田间评估。 4月30日，在Brooksville粉质粘土土壤中种植了大豆品种。之前的作物是玉米。地块包括三排大豆，间隔19英寸。分开，种植每脚6个种子，并将其末长为14.5英尺。实验设计是三种复制的随机全组织。阴谋没有灌溉。使用0至9个刻度在大约R 6下进行叶面疾病存在的田间评价，从而0 =没有疾病，9 =过量的疾病症状。根据疾病强度基于叶片（0至5），叶柄（0至5），叶柄（0至5），叶片强度，基于疾病强度的疾病（0至5），叶柄强度（0至5），叶柄（0至5）和茎（7至9）的存在，评估叶片表面积。植物材料（叶子与紫色着色和叶柄，豆荚和主要茎与紫色到黑色着色附近）。 Sememoria棕色斑点以类似的方式评定了植物冠层内的疾病的存在，使0至3表示在下层的下层，中间冠层4至5中的存在，在上层冠层6至8中， 9表明整个植物冠层的广泛脱渗和上层冠层中的疾病。对于疾病在整个块基础的疾病基础上，疾病的疾病基于植物冠层在植物冠层的区段存在的情况下，疾病的抗病症棕色现场评估是类似的时尚。通过收获所有三排大豆收获地图26 sep收获了地块。通过将水分标准化至13％的水分来计算产量。使用SAS GLM程序（第9.3版，SAS学院，Cary，NC）分析了释放酶评级和产量数据。意味着在P = 0.05的P = 0.05下使用Fisher受受的受保护最小差异进行分离。

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