云南不同气候带农业气候资源变化特征研究

为分析全省平均以及各气候带光能、热量、水分资源的时空变化特征,使用云南115站及6个气候带代表站1961—2018年的气候要素计算各地农业气候资源统计量。结果表明,光能资源变化以减少趋势为主,出现显著突变,各气候带太阳辐射变化可能会引起云南太阳辐射高低值中心发生变化,2009年以来辐射明显增加可能会导致太阳辐射出现新的变化趋势和突变点;热量资源一致显著增加,喜凉及喜温作物的活动积温、积温持续时间及无霜期长度均显著增加,并且呈现初日提前、终日推后的趋势,对作物生长有利;水分资源总体呈现减少趋势,尤其21世纪以来下降趋势明显,亚热带地区暖干化现象突出,干旱风险等级较高。     

云南野生食用菌生态休闲观光旅游探索

得天独厚的地理环境和悠久的野生食用菌历史,奠定了云南野生食用菌的重要地位与属性,云南也逐渐将野生食用菌资源纳入到生态休闲观光旅游的范畴,并成为云南旅游经济新的增长点。结合云南的野生食用菌栽培及旅游模式开发的现状,发现云南在野生食用菌生态休闲观光旅游探索上存在的问题,通过对问题的分析与解决,对云南野生食用菌的生态休闲观光旅游建设具有一定的指导意义。     

科技是云南草地畜牧业可持续发展的关键因素

针对云南草地资源的现状及面临的问题，进行了草地畜牧业持续发展综合配套技术的研究，试验、示范、推广效果突出、效益明显，从而提出了科技是草地畜牧业可持续发展的基础和关键因素，以及加快科技推广的一系列建议。     

Analysis on Mineral Element Contents in Associated with Varietal Type in Core Collection of Yunnan Rice

Eight-element contents of 653 unpolished rice samples harvested from Xingping experiment farm, Yunnan Province under the same ecological conditions were analyzed by ICP-AES method. The mineral elements content were closely related to low diversity, high-yielding, and multi-resistance breeding; The K, Mg, Ca and Mn content in high-yielding and resistant varieties were high, and other nutrients such as P, Fe, Zn and Cu were low, which was connected with the heredity and physiological mechanism of mineral nutrients. There is zonal distribution of mineral elements content from Yunnan rice, especially for P, Fe, Zn and Cu co-related with the diversity center, paddy versus upland, glutinous and non-glutinous, glume-hair versus nuda, rice color, rice flavor, soft rice versus non-soft rice, but it did not find any association with indica-japonica types. The results supported the ecological variety group view of 5-grade taxonomic system “species-subspecies-ecological groups-ecological variety groups - varietal types“ .     

白鱼属鱼类一新种及其营养成份

本文对路南金线白鱼新种作了详细描记，新种体背体侧上方有3条金色带可与该属所有种相区别。文中对其营养成分作了分析，结果表明路南金线白鱼是营养价值很高的优质鱼种，现该物种已处于濒临灭绝状态，应加强保护。     

Pathogenicity and Virulence of the Two Dutch VCGs of Verticillium dahliae to Woody Ornamentals

Two experiments were performed in two consecutive years to test whether isolates of different vegetative compatibility groups (VCGs) differ in their ability to cause disease in woody ornamentals, to study the host specificity of the isolates and to get an insight into disease development in woody hosts. A range of woody ornamental plant species, including Acer campestre, Acer platanoides, Acer pseudoplatanus, Catalpa bignonioides, Cotinus coggygria, Robinia pseudoacacia, Rosa canina, Syringa vulgaris and Tilia cordata, were root-dip inoculated with six isolates of Verticillium dahliae, belonging to the two VCGs that occur in the Netherlands (VCG NL-1 and VCG NL-2). Isolates belonging to each VCG caused severe symptoms of verticillium wilt in most plant species tested. Disease progress differed between plant species, but was generally the same for the two VCGs. No overall differences in virulence were observed between the two VCGs for external wilt symptoms, number of dead plants, or shoot length. No significant VCG × plant species interactions were present for these characteristics. However, isolates of VCG NL-1 caused more vascular discolouration than did isolates of VCG NL-2. Isolates within VCGs often differed considerably in their virulence to certain hosts, as shown by highly significant isolate × plant species interactions. Isolates were more virulent on their original host. These findings imply that VCG identification does not contribute to disease prediction for a range of woody hosts.     

云南醉鱼草属(Buddleja L.) 观赏植物资源的调查研究

 在对云南分布的醉鱼草属观赏资源系统调查和资料整理的基础上, 研究了该属植物在云南的地理分布规律及25 种(包括变种) 醉鱼草的观赏性状, 包括花、叶、香气等观赏特征及其开花期, 指出开发利用面对的问题和应采取的措施。     

云南特有野生果树资源及其分布特点

 云南有各类野生果树资源约500 余种, 其中云南特有的164种, 分属35科54属, 多为热带、亚热带果树和浆果类果树, 形成滇南—滇东南、滇西—滇西北和滇中—滇东北3个特有野生果树集中分布中心。这些果树资源用途广泛, 优异性状明显, 有待深入研究和综合开发利用。     

云南哀牢山自然保护区南华片区项目建设必要性分析

对哀牢山国家级自然保护区南华片区的生物多样性、经营现状和经营管理进行评价,对项目建设必要性分析结果:项目建设有利于该保护区的整体效应;有利于对珍稀植物物种和生态系统的保护;有利于对候鸟迁徙通道的保护;有利于社会经济的可持续发展;是加强科研和宣教工作的需要。最后阐述了项目建设的主要内容。