Agronomical Performance Among Farro Species and Durum Wheat in a Drought-Flat Land Environment of Southern Italy

The aim of this study was to evaluate the agronomical performance of old unhuUed wheat species (farro) in comparison with an old cultivar of durum wheat, selected for morphological and rusticity characteristics similar to farro, in a drought-flat land environment of southern Italy. The trials were carried out during the 1992/93 and 1993/94 growing seasons. Agronomical responses concerned the behaviour of the different species to weeding treatment (diclofop-methyl, 568 g a.i, ha⁻¹) and to three (0%, 50%, 100%) artificial weed levels with Avenafatua and Phalaris arundinacea with respect to grain yield and its components, plant morphological aspects and two qualitative characters. In all of the species the weeding treatment increased the mean values of almost all the parameters analysed except for days to head and grain protein content which remained constant. The effect of weed treatment on the characters considered was a general decrease of mean values when weed level was increased. The grain protein content showed an opposite trend. As far as the grain yield alone is concerned, yielding differential in medium and large farro decreased by 3% whereas in small farro it increased by 4.3% vs, durum wheat when no weeding and weeding treatments were compared. Small and large farro resulted more susceptible than medium farro and durum wheat to weed treatment. In fact, these latter showed, at the maximum weed level, the same grain yield loss as small and large farro at the 50% weed level. Small farro was the most susceptible species, while Triticum dicoccum showed similar affinity and behaviour to durum wheat.     

Clustering of Chickpea (<Emphasis Type="Italic">Cicer arietinum</Emphasis> L.) Accessions

The variation in 20 morphological and agronomical traits has been evaluated in a set of chickpea genetic resources from four countries. Data indicated differences between accessions in leaf, flower, pod, and seed traits and characteristics, as well as in vegetation period. Multivariate analyses of these data segregated chickpeas into groups. Polymorphism in seed glutelines was absent, while variation in seed prolamines was very limited. DNA amplification patterns have been analyzed by semi-arbitrary primers and by specific microsatellite primers. Only some of semi-arbitrary primers generated usable DNA banding patterns, moreover interpretation of these patterns can be more or less difficult. On the contrary specific primers amplifying microsatellites at the specific loci generated unambiguous and reproducible differences between chickpeas.     

激情与才华，青春和梦想——模拟联合国活动解读

模拟联合国活动，让学生扮演外交官的角色，依据联合国的运作方式和议事原则，围绕国际上的热点问题召开会议。本文从中国大学生模拟联合国的发展概况入手，阐释了英语专业实践教学与模拟联合国活动的结合情况，力求使读者了解模拟联合国活动有利于学生综合能力的提高，是一项值得在实践教学中推广的活动。     

云环境下经管类实验教学平台的设计与研究

云技术是新时期发展起来的一种先进信息技术,实现了计算机技术和实验教学的一体化发展,是经管类实验教学平台设计与研究的关键。本文分析了目前高校经管类实验教学平台的发展现状,并研究了云环境下经管类实验教学平台的设计方案。     

多效唑对花生种子萌发及植株生长的影响

以不同浓度的多效唑，对花生种子进行浸种处理和盛花期叶面喷施，观测种子萌发、幼苗生长情况和植株农艺性状，收获时进行产量测定。结果表明：(1)多效唑浸种延缓花生种子萌发，使发芽率有所下降，矮化植株；(2)盛花期喷施适宜浓度的多效唑能抑制花生地上部分的生长，促进其横向生长，使主茎和分枝比对照的短，分枝数、单株结荚数、饱果率和产量均比对照的高，其中以喷施150mg／L多效唑的处理产量最高，达3806．3kg／hm^2，比对照增产12．60%。     

新时代背景下的大学生创新创业教育模式实证研究——以安徽农业大学为例

创新创业教育是高校人才培养的重要内容。针对目前高校创新创业人才培养面临的教育理念滞后、与专业教育融合不够、师资力量薄弱、教学方法单一等问题,结合安徽农业大学创新创业人才培养实践,提出通过实施“意识培养—素质提升—实战操作”三阶段、搭建“课程群组—科研训练—第二课堂—创客空间”四平台、深化“政策—资源—专业—文化—师资”五融合,探索新时代背景下的大学生创新创业教育模式。     

农学类本科专业实践教学模式的探索

在卓越农林人才教育培养计划背景下,以河西学院为例,经对实践教学体系的改革与探索实 践,分析概括出5 种实践教学类型、5 种实践教学基地类型。构建了入学教育+专业导论、“三平台十模 块”、“共建互融”3 种创新实践模式,增强了学生服务“三农”使命感和责任感,提高了学生专业能力、实 践能力和创新能力,实践效果良好,为同类院校实施实践教学提供参考。     

网络课程在非计算机专业中的教学研究

结合非计算机专业学生特点和实际教学条件,把网络课程运用于非计算机专业教学中,改进教学方法,合理安排教学内容,改革课程体系,加强实践环节,努力提高计算机网络的教学效果和教学质量.     

中粳水稻品种资源的遗传多样性Ⅰ.主要农艺性状的演变特点

依据育成或应用时间,将中国黄淮稻区地方品种和50年来育成的中粳稻品种分成4个时期品种,分析了不同育成时期品种的农艺性状演变趋势.结果表明,随着育成时间的推进,水稻品种产量水平显著提高,株高、单株成穗数和单位面积穗数变化不显著,千粒重稍有增加,每穗粒数、结实率、着粒密度、一次枝梗和二次枝梗数显著增加;植株株型发生改变,直立穗型粳稻品种数量明显增加,弯曲穗型粳稻品种数量减少,穗长变短,上部3张叶片变短、变宽,穗颈节缩短,抗倒性提高.通径分析表明,4个时期品种对产量有显著影响的主要性状是单株穗数、每穗实粒数和千粒重,对这3个性状的改进是产量提高的直接原因.     

农业院校英语专业课程设置改革的调查与分析

以培养单纯的语言技能为主要目标的英语专业课程体系不再被社会认可,取而代之的是语言能力培养、人文知识的传授、跨文化交际能力培养兼具有专业知识传授的以培养创新型复合型外语人才为目标的课程体系。目前农业院校英语专业学生课程设置现状如何？学生对课程设置又有何看法或需求？如何对农业院校英语专业的课程设置进行改革？带着对这些问题的思考,通过对问卷调查的分析研究,针对农业院校英语专业发展现状,提出农业院校英语专业课程设置改革的建议。