leaf spot的例句大全

diversified host reaction to gray leaf spot pathogen infection

玉米灰斑病菌致病过程的寄主反应研究

pathogenic differentiation of gray leaf spot pathogen in maize

玉米灰斑病菌致病性分化研究

the technique for identification of resistance to gray leaf spot on maize

玉米灰斑病抗性鉴定技术

the research progress, problem and prospect of gray leaf spot of maize

玉米灰斑病的研究现状、问题与展望

study on the role of proline in resistance mechanism to gray leaf spot of corn

游离脯氨酸在玉米灰斑病抗性机制中作用的研究

the research progress of resistance to gray leaf spot of maize

玉米灰斑病抗病性研究进展

the cultural characters of gray leaf spot pathogen

玉米灰斑病菌培养性状观察

inoculation method of gray leaf spot pathogen

玉米灰斑病菌人工接种方法

the research progress to gray leaf spot of maize

玉米灰斑病的研究进展

gray leaf spot of maize is a devastating disease worldwide especially in recent years which results in great loss to maize production.

玉米灰斑病近年来发生严重，对世界玉米生产造成很大危害。

the investigation was done about incidence of gray leaf spot of maize in heilongjiang province.

对玉米灰斑病在黑龙江省的发生情况进行了调查。

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。

gray leaf spot damages leaves at or just after silking stage and causes severe yield reduction .

灰斑病菌在抽丝期期间或结束后损害叶片，导致严重减产。

setup of differential host system for the identification of physiological differentiation in gray leaf spot pathogen of maize

玉米灰斑病菌生理分化的鉴别寄主体系

identification technique of physiological differentiation of gray leaf spot pathogen

玉米灰斑病菌生理分化的寄主鉴定技术研究

The disease spot happen under the leaf tip and leaf edge, at first, it is a dust-color tittle, then expands becoming brown roundness, the disease spot present unclear wheel sometimes, the abnormity appear after a few disease spots conformity.

病斑多发生在叶尖、叶缘，初为暗褐色小点，后扩大成褐色圆斑，病斑上有时出现不明显轮纹，有的病斑处呈环状脱落，有的病斑几个融合后呈不规则形。

Even the buds dropped numerously. After applying potassium fertilizer, the disease spot of leaf reduced evidently and new leaves grew normally.

施用钾肥后，叶部病斑减轻，穗梗挺直恢复正常，新叶长势良好。

Rough gentian leaf blight was caused by Septoria gentianae. Study on occurring rule and controlling techniques of spot blight of Gentiana

龙胆草斑枯病是近几年生产上发生的一种毁灭性病害。龙胆草斑枯病发病规律及防治技术研究

the leaf tops develop irregular yellow blotches, and a sporadic orange powdery spot appears beneath.

叶片顶部形成不规则的黄色斑块，下方出现一个零星的橙色粉状斑点。

Color-leaf plants can be classified into 5 categories: the leaf plant of spring scenery, frequently color leaf plant, spot color leaf plant, double color leaf plant and the leaf plant of autumn scenery.

彩叶植物种类可分为5大类：春色叶类、常色叶类、斑色叶类，双色叶类和秋色叶类。