您要查找的是不是：
- poplar leaf spot 杨树黑斑病
- Fig. 1. Symptom of leaf spot on Basella rubra. 一、落葵叶斑病之病徵。
- The poplar leaves rustled in the wind. 杨树叶子被风吹得刷刷响。
- 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。
- Pure yellow poplar leaves as students in ANU. 纯黄色的杨树叶,如同校园里的学生一样单纯。
- 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。
- The wind set the poplar leaves a-rustling. 风吹得杨树叶淅淅飒飒直响。
- 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。
- Title： Advances in Researches of Cathay Poplar Leaf Rust(Melampsora larici-populina Kleb. 关键词：落叶松-杨栅锈菌；致病性；抗病性；分子标记；综述
- 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。
- 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。
- Indicated that T-DNA of Ri plasmid had already been combined into in the regeneration plant91% of transgenic plant of the triploid Chinese white poplar leaf showed winkle symptom compared with the contrast , the others grew normally. 三倍体毛白杨的转基因植株与对照相比,91%25的植株都发生了叶片皱缩,9%25转化植株叶片生长正常,转化植株的叶片均在MS_0具有自发根的特性。
- 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)。
- The spring bottom was covered with rotting oak and poplar leaves and the water was amber like a weak steeping of them, a tea. “池底布满了腐烂的橡树枝和杨树叶，泉水呈琥珀色，象是这些枝叶浸泡出的，淡淡的一池茶。”
- 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。
- Poplar leaves a bit yellow, the wind blowing, poplar staggered, as if it has old, had waddled. 杨树的叶子有点发黄了，秋风吹来，杨树摇摇晃晃，好像它已经老了，站不稳了。
- 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。
- Field efficacy trials indicated relativity good control of banana sigatoka leaf spot disease. 田间药效试验结果表明，对香蕉叶斑病有较好的防效。
- The control effect of 800 times liquid of chlorothalonil on the leaf spot in C. longibracteatum was the best. 百菌清800倍液对春剑叶斑病的防治效果最好。
