您要查找的是不是：
- Research on Septoria leaf spot in tomatoes 番茄斑枯病研究概述
- septoria leaf spot 针壳孢叶斑病
- Fig. 1. Symptom of leaf spot on Basella rubra. 一、落葵叶斑病之病徵。
- 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。
- 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。
- 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。
- 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。
- 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。
- There are Green Rainbow pheasant tail, gray leaf spot angle Pheasant, Swinhoe's white, and other rare birds. 还有绿尾虹雉、灰斑角雉、白鹇等珍禽。
- Bacterial leaf spot disease of malabar spinach (Basella rubra) was discovered in Jiangsu Province in 1994. The disease has not been reported before. 1994年在江苏省南京及镇江地区新发现了落葵细菌性叶斑病 ,从病斑所分离的 10个细菌菌株经柯赫氏法则验证 ,均确系该病的病原菌。
- The genetic correlation indicated that root yield,sugar content and sugar yield showed positive relations except Cercospora leaf spot resistance. 遗传单粒型多倍体品种的各项经济性状指标相对较差。 遗传相关性分析表明,除褐斑病级与根产量、含糖率及产糖量呈负相关外,其余3个性状间呈现正相关关系。
- But they were not resistant to cercospora leaf spot of sugarbeet and produced a lower sugar content in normal or light rhizomania infected field. 但该类品种在无丛根病或轻度感染丛根病地种植,均表现不抗褐斑病,含糖分较低。
- The phenotypic correlation was positive for pod rot severity with leaf spot disease, but negative with pod and kernel yields, in spring crop. 外表型相关，只有在春作荚果黑斑病罹病度与叶斑病呈显著正相关，而与荚果及籽粒产量则呈显著负相关。
- The gray leaf spot (GLS) disease threatens seriously the sustainable development of maize production in recent years in North China. 摘要玉米灰斑病现已严重威胁中国北方玉米生产的可持续发展。
