抗病

This study focused on the effects of environmental conditions and maize growth stage on the infection of GLS(strain 20-47 on susceptible variety Yedan 13 and resistant variety Shendan 10) in phytotrons and under natural conditions.

利用玉米灰斑病菌株20-47、感病玉米品种(掖单13)和抗病玉米品种(沈单10号)，在人工气候室和自然条件下对影响玉米灰斑病菌侵染的环境条件和寄主生育期进行了研究。

Some of China's wheat-producing areas respectively from Italy, the United States, the former Soviet Union, Mexico, a better adaptability of introduced species, whose main purpose is as a parent resource use of its resistance Xing, lodging resistance, large ear big grain characteristics, rich in the genetic basis of China's domestic varieties.

中国的一些小麦产区曾分别从意大利、美国、前苏联、墨西哥等引进了有较好适应性的品种，其主要目的是将其作为亲本资源，利用其抗病性、抗倒性、大穗大粒等特点，丰富中国国内品种的遗传基础。

As a result of the joint test experiment conducted by the Wheat Scab Disease Research Cooperation Team in China of 1981, 13 wheat strains bred in our college were considered to be the most prospective among 30,000 wheat germplasm collections.

本文概述了60085等13个小麦抗赤霉病新品系的选育经过、鉴定结果及其利用价值。这些新品系于1981年经全国小麦赤霉病研究协作组联合鉴定，在3万多份品种资源材料中抗病性表现突出。

The most effective control way of wheat powdery mildew is to use resistant varieties in combination with right time emergency chemical control based on accurate prediction and forecast.

小麦白粉病的经济有效防控办法就是首先使用抗病品种，再结合建立在准确预测预报基础上的适时药剂防治。

Modem scientific research indicated that breeding and popularizing resistant varieties are the most economical, environmental and effective way for controlling powdery mildew in wheat.

科学研究表明，选育和推广抗病品种是防治小麦白粉病最经济、安全和有效的措施。

AFLP (amplified fragment length ploymorphism) analysis system for wheat resistance was established with the optimization of several main factors in wheat resistance to powdery mildew lines.

利用小麦抗白粉病材料，通过对AFLP反应体系中几个主要条件的优化，建立了适合于小麦抗病性研究的AFLP反应最佳体系。

The results indicated that the mechanism of induced resistance to tomato bacterial wilt may be the changes in metabolism related to the resistance.

这表明青枯无致病力菌株产生诱导抗性的机制可能是植物本身的抗病代谢过程被激活了。

The research progress on tomato late blight was summarized,including the character and race of Phytophthora infestans,mechanism of resistance,inheritance of resistance and resistance breeding.

本文综述了国内外对番茄晚疫病菌特征特性、生理小种以及番茄抗晚疫病机制、抗性遗传规律、抗病育种等方面的研究进展，并对当前生产和研究中存在的问题和今后研究方向进行讨论。

All these results suggest that the significant control efficacy of the COS against the tobacco brown spot be mainly due to induction and improvement of the activities of defensive enzymes in the tobacco plants, which enhance resistance of the tobacco plants against the brown spot.

以上结果说明，几丁寡糖对烟草赤星病有显著的控制效应，主要是通过诱导、提高烟草植株有关防御酶的活性从而增强烟草植株对赤星病的抗病性。

Tobacco ; Brown Shank ; The identification of resistance

烟草；黑胫病；抗病性鉴定

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。