您要查找的是不是：
- wheat leaf spot 小麦叶斑枯病
- Fig. 1. Symptom of leaf spot on Basella rubra. 一、落葵叶斑病之病徵。
- Bioassay methods of wheat leaf rust with candidate chemicals. 药剂对小麦叶锈菌生物活性试验方法的研究。
- A NEW SPECIES OF CERCOSPORA CAUSING LEAF SPOT OF MELIOSMA SP. 引起泡花树属叶斑的尾孢菌属一新种。
- The pathogen of gray leaf spot had different pathogenicity. 玉米灰斑病病原菌种群中致病性存在差异。
- Control rust and powdery mildew of wheat,sheat and culm blight of rice,leaf spot corn,black rot of pineapple,powdery mildew of melon,fruit and vegetable,stream canker and powdery mildew of rubber. 用于小麦锈病，水稻纹枯病及云纹病，棉花叶斑病，瓜果蔬菜白粉病，凤梨黑腐病，橡胶条溃病、白粉病。
- The cercospora leaf spot is one of the main diseases infecting sugarbeet. 褐斑病是甜菜的主要病害之一,危害性很大。
- Wheat leaf rust is one of the most destructive diseases on wheat production throughout the world. 小麦叶锈病是国内外影响小麦生产的重要病害。
- The wheat leaf blight caused by an unknowing pathogen occurred in the middle reaches of Yellow River from the 1970s. 自70年代以来,在黄河中游麦区发生了一种病原菌未知的小麦叶枯病,1993年至1996年依据柯赫氏证病律进行了病原学研究。
- Sixty-eight of them amplified polymorphic bands in Thatcher and 23 wheat leaf rust resistance NILs with 22.4 percent of polymorphism. 经过初次筛选;选出68对能在近等基因系间揭示出小麦抗叶锈基因Lr35多态性的引物组合;多态性引物出现比率为22.;4%25。
- Spatial distributions and relationship between wheat leaf area index and yield were analyzed using geostatistics and correlation analysis methods. 摘要运用地统计学和相关分析法探讨了小麦叶面积指数与产量的空间分布及关系。
- The results showed that the cell membrane penetrability of winter wheat leaf was low before winter and higher in early spring. 试验结果表明：冬小麦叶片质膜相对透性与生育时期有关，总的趋势表现为冬前低，开春稍升；
- The pathogen was identified as cucumber target leaf spot according to Koch's Postulation and biological characteristics. 根据柯赫氏法则和生物学特性，鉴定为黄瓜褐斑病，又叫靶斑病。
- The coupling effects of water and fertilizer on the relative penetrability of cell membrane of winter wheat leaf were studied under field condition. 摘要在田间条件下研究了水肥耦合对冬小麦各生育期叶片质膜相对透性的影响。
- Effects of nitrogen and calcium on polyphenol oxidase, peroxidase and leaf spot in carnation. 氮钙对香石竹多酚氧化酶、过氧化物酶和叶斑病的影响。
- Fig. 2. Conidiophores and conidia of Alternaria alternata produced on leaf spot of Basella rubra(A,B). 二、落葵叶斑病斑上的病原菌孢子梗及孢子(A,B)。
- And to angular leaf spot, 14 of all lines were resistant, two was susceptive, the others were mid-resistant. 14份材料抗角斑病，2份表现感病，其余均为中抗类型；
- The resistance of soybean cultivars to the disease could affect the relationship of soybean frogeye leaf spot. 协方差分析结果表明，大豆品种的抗病性对这一相关关系有一定的影响。
- This strain of wheat can grow during a cold spring. 这种小麦可以在寒冷的春天生长。
- The result showed that the diseases endangeringleaf were blackspot disease,anthracnose,leaf spot and ring rot disease. 结果表明,危害银杏叶片的病害主要有黑斑病、炭疽病、叶斑病和轮纹病。
