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By learning the course, students those who do not major in plant protection can understand the basic conception of plant protection science, the occurrence law, prediction methods, the prevention technology and strategies of agricultural pests, and the basic theories and elementary knowledge of the integratedpest management and the extension of plant protection technology.

课程简介：本课程的教学目的是使农科非植物保护专业本科生了解植物保护学的基本概念、植物保护涉及到的各类有害生物及其危害发生规律、预测方法、防治技术与策略，以及主要农作物有害生物的综合治理和植物保护技术的推广应用等方面的基本理论和基本知识。

Field trials on the effect of three levels (1.0, 1.5 and 2.0 kg/plant/year in plant cropping, and 0.76, 1.06 and 1.36 kg/plant/year in ratoon cropping) of compound fertilizer Tai-Fei No.4 on the vegetative growth, yield and post-harvest quality attributes of TC1-229, a semi-dwarf, fusarial wilt-resistant banana clone, were conducted on a soil of silt loam with a pH of 8.0 and 2% of organic matter for two consecutive years.

在有机质含量约百分之二的坋质壤土定植中矮性抗黄叶病品系TC1-229组织培养苗蕉株，每年每株施用台肥四号复合肥料1.0，1.5或2.0公斤，抽穗期叶片之矿物营养组成均在正常范围内，惟磷和镁含量随肥料施用量减少，处理间差异达显著水准(P=0.05)。

A new switching scheme to the gain of variable structure control signals is proposed. The following important open problems in standard VS-MRAC and MRAC are solved by using the scheme: 1 . a prespecified transient and steady-state performance index for tracking error can be achieved without requiring any information about the plant high frequency gain sign when relative degree of modelled part of plant is one, and 2 . it is shown that as long as the performance indexes are guaranteed for the auxiliary errors, each of which in dynamics is a sub-system with relative degree one, the tracing error will converge to a small residual set in a prespecified transient time when relative degree of modelled part of plant is greater than one.

提出了一种控制增益可切换的变结构自适应律，解决了如下变结构模型参考自适应控制（包括基于调参律的模型参考自适应控制）理论研究中长期没有解决的问题：当对象建模部分相对阶为1、高频增益符号未知且存在非线性输入扰动和未建模动态等情况下，系统跟踪误差可满足预先给定的动态和稳态性能指标；当对象建模部分相对阶大于1且存在非线性输入扰动和未建模动态时，可保证系统跟踪误差在预先给定的过渡过程时间内收敛到一个残差集中； 5。

Aphids belong to Diptera insect pests; they damage plants directly by sucking juice of phloem, and indirectly by spreading plant disease. The plant lectins are proteins that bind reviviscence to specific mono- or oligosaccharides; therefore they have potential in plant genetic engineering.

本研究还克隆了植物凝集素基因，以解决棉花蚜虫的危害问题，蚜虫属同翅目昆虫，通过吸取植物韧皮部的汁液造成直接危害，又通过传播植物病害对植物造成间接危害，植物凝集素是一类具有特异糖结合活性的蛋白，在植物基因工程中具有较大的应用潜力。

Influence of plant species coexisting on AMF colonization in root system under field conditions The field experiment showed that the influence of species coexisting community on the AMF colonization in these plant root system significantly depended upon the plant species character.

泡囊数主要说明AMF在宿主根系的定殖程度，泡囊数表现出与菌根侵染率相似的变化规律，也是各物种共存组合与单个物种相比变化不大，但泡囊数在铅污染土壤中明显增加，这可能是铅污染刺激了这些草的菌根膨大。

The plant height is 35 cm and the plant spread is 48 cm. The plume-like leaf cluster is semi-uprush with small tassel. The leaf color is deep green, but the leafstalk is light green and leave numbers per single plant are 10-12. Its fleshy root is of long column shape with rootlet, little fibre and deep green peel. The length is 26-32 cm, the diameter is 8-12 cm and the weight could reach 2-3 kg. The flesh is light green, with delicate and slight pungent taste. And its dry matter content is 7.0%, VC 209 mgkg^(-1), soluble sugar 3.27 % coarse fibre 0.65%. Besides,'Weiluobo No. 1' had high resistance to virus, resistance to downy mildew, stronger resistance to bacterial soft rot than 'Luluobo No.

生长期80d左右，植株生长势旺盛，株高35cm，开展度48cm；叶簇半上冲型，羽状裂叶，小缨，叶深绿色，叶柄淡绿色，单株叶片10~12片；肉质根长圆柱形，小顶小根，须根少，表皮深绿色，仅1/3入土部分为白色，肉质根长26~32cm，横径8~12cm，肉质根质量2~3kg；肉淡绿色，肉质细嫩，干物质含量7.0%，VC209mgkg^(-1)，可溶性糖3.27%，粗纤维0.65%，微辣，品质佳，适于熟食；高抗病毒病，抗霜霉病，对软腐病的抗性优于对照鲁萝卜1号。

Through the comparisons, it was observed that there were extensive conserved relationships of maize QTL affected plant height, row number, and kernels per row with rice QTL affected plant height, tillers per plant, and grains per panicle respectively. 16 of 45 QTL affecting five different maize traits were conserved compared with 12 of 38 QTL affecting five different rice traits, which provided some useful information for locating, isolating and cloning maize QTL by using the rice genomic data.

研究结果表明：在玉米和水稻共线性的染色体区段，控制玉米株高、行数和行粒数的QTL与控制水稻株高、单株有效穗和每穗实粒数的QTL存在广泛的对应关系；在已定位的影响玉米株高等5个性状的45个QTL中，有16个与水稻"汕优63"群体中5个相同或相似性状所定位的38个QTL中的12个具有共线性关系。

Through the comparisons, it was observed that there were extensive conserved relationships of maize QTL affected plant height, row number, and kernels per row with rice QTL affected plant height, tillers per plant, and grains per panicle respectively.

研究结果表明：在玉米和水稻共线性的染色体区段，控制玉米株高、行数和行粒数的QTL与控制水稻株高、单株有效穗和每穗实粒数的QTL存在广泛的对应关系；在已定位的影响玉米株高等5个性状的45个QTL中，有16个与水稻"汕优63"群体中5个相同或相似性状所定位的38个QTL中的12个具有共线性关系。

The main products are: self-loading type of hydraulic-type concrete mixing plant complete sets of equipment (theoretical productivity: 50M3/h-240M3/h), compulsory mixing type concrete mixing plant complete sets of equipment (in productivity: 50M3 / h -180M3 / h), mobile concrete mixing station (theoretical productivity: 30M3/h-75M3/h), dry mortar production line, marine mixing plant series and gravel separation systems.

主要产品有：自落式水工型混凝土搅拌楼成套设备（理论生产率：50M3/h-240M3/h）、强制式商混型混凝土搅拌楼成套设备（生产率：50M3/h-180M3/h）、移动式混凝土搅拌站（理论生产率：30M3/h-75M3/h）、干粉沙浆生产线、船用搅拌站系列及砂石分离系统等。

The invention relates to a method for the fast establishment of DSE and plant symbiotic culture system and the application of the method, in particular to a method for the fast establishment of dark septate endophytes and plant symbiotic culture system and the application of the method, belonging to the field of applied microbiology, plant nutrition and ecology.

本发明涉及一种快速建立DSE与植物共生培养体系的方法及其应用，具体为快速建立深色有隔内生真菌与植物共生培养体系的方法及其应用，属于应用微生物学、植物营养和生态学领域。

He studied their excrement for evidence of livestock hair.

他为家畜毛的证据研究他们的粪便。

Loneliness is not grounds for deportation, deportation of the people are not all lonely people.

寂寞也不是放逐的理由，放逐的人也并不都是孤独的人。