李小龙武术思想研究

李小龙身为中国武术界的里程碑式人物,对中国武术乃至世界武术都产生了前无古人的影响。李小龙在武术上的成就,与他本身具有的与众不同的武术思想密切相关,包括勇于创新的武术思想;实战主义武术思想;武术与哲学融合的思想;追求完美的武术思想等。李小龙的这些武术思想对于今天发展和推广传统武术都有十分重要的借鉴意义。     

野苹果种子休眠原因的研究

野苹果是我区特有的落叶果树,它耐早、抗寒,是优良的砧木材料。本文研究了野苹果种子在低温层积期间种皮透性,内源激素和各种酶活性的变化,物质代谢途径的转变,种皮解剖等特性。初步探明野苹果种子属生理性休眠,需经5～6℃低温层积才能完成生理后熟,胚已解除休眠的种子,其种皮透性仍很差,O_2的供应不足成为种子萌发的主要障碍。     

一种快速提取野生稻总DNA的方法

在常规CTAB的基础上建立一种快速提取纯化野生稻总DNA的方法，这种快速提取法能在短时间内处理大批量的材料，具有简便、快速、经济、稳定等优点。用这种方法提取的DNA作为模板进行PCR扩增，和用常规的CTAB法提取的DNA作为模板结果一致。因此，用这种方法提取的DNA质量完全可以满足植物分子标记分析的需要。     

Teaching in wild meerkats

Despite the obvious benefits of directed mechanisms that facilitate the efficient transfer of skills, there is little critical evidence for teaching in nonhuman animals. Using observational and experimental data, we show that wild meerkats (Suricata suricatta) teach pups prey-handling skills by providing them with opportunities to interact with live prey. In response to changing pup begging calls, helpers alter their prey-provisioning methods as pups grow older, thus accelerating learning without the use of complex cognition. The lack of evidence for teaching in species other than humans may reflect problems in producing unequivocal support for the occurrence of teaching, rather than the absence of teaching.     

中国野生花卉种质资源调查综述

对近20a来我国野生花卉种质资源的分区及专类调查进行了分述，陕西，浙江，安徽，云南，西藏和新疆等省（区）对所在地的野生花卉进行了种类，分布，生境及观赏特性的调查研究，专业调查主要集中在兰科Otchidaceae，高山花卉，百合科Liliaceae，观赏蕨类，水生观赏植物及野生观果树种等方面，最后提出了我国野生花卉种质资源调查中存在的问题及今后研究的方向，参59。     

河池市野生刺梨开发雏议

刺梨是珍稀野生水果的代表,是喀斯特地貌的优势物种。其野生性强,资源丰富,药食兼用,营养、保健价值高,有＂VC之王＂和丙、巳维生素大王之美称,是果中珍宝。本文分析河池市开发野生刺梨的基础和开发利用前景,提出开发野生刺梨的对策。     

几种野生葡萄与栽培品种杂交效果初步研究

本研究以超藤×刺葡萄、巨峰×燕山葡萄、巨峰×沙地葡萄、水晶×华东葡萄、白香蕉×华东葡萄及玫瑰蜜×华东葡萄6个杂交组合为试材、各母本自然授粉果实及种子为对照,对其进行研究.结果表明,6个杂交组合坐果率,分别为44.44%、46.00%、41.67%、22.22%、12.00%、10.00%.与对照相比,6个杂交组合的果实重量和大小下降,可溶性固形物含量有所上升;果皮颜色、形状、果肉质地及果肉颜色变化不大;种子千粒重差异较大,水晶×华东葡萄和白香蕉×华东葡萄后代种子千粒重增大,其他杂交组合种子千粒重降低,种子大小变化规律与千粒重变化规律相同.     

Choice in free-ranging wild pigeons

A flock of free-ranging wild pigeons were trained to peck at buttons which, when operated, allowed brief access to grain. Although only one bird at a time could have access to the buttons, the pecks of the group were treated as an aggregate. When they chose between two buttons, each of which could occasionally produce grain, the ratios of pecks at the buttons approximately equaled the ratios of the grain presentations obtained from them. This accords with a relation well substantiated in the laboratory, the matching law. It suggests that the matching law may apply to the behavior of higher organisms in natural environments.     

新疆野生黑麦(Secale cereale)的Giemsa C-带

利用BSG显带技术,将新疆野生黑麦的Giemsa C-带与其他作者的研究结果进行了比较,从而确定了黑麦C-带的基本带型为全部染色体(除随体染色体外)短臂上显末端带,随体染色体显核仁缢痕带。为此,从带型上可判断出野生黑麦与栽培黑麦之间亲缘关系密切。为栽培黑麦起源于野生黑麦提供了直接的细胞学证据。从分析比较中也看出,黑麦C-带带型的异染色质多态性现象明显存在。而野生黑麦的杂合性现象也较明显。这可能与野生黑麦本身的遗传性有关。     

吉林省野生果树种质资源研究综述

初步查明吉林省野生果树种质资源有11科、23属、2亚属、45种、3变种。综述了野生种质资源的主要特征、特性、生态分布及利用中存在的问题,并提出了建议。     

长白山区野生软枣猕猴桃种质RAPD分析

以长白山区8个县市30个取样点采集的软枣猕猴桃样品叶片为试验材料,利用RAPD技术对其进行遗传多样性分析．用14个RAPD引物共扩增出104条带,其中多态带占82％．聚类分析结果表明,长白山区野生软枣猕猴桃各居群样品存在一定程度的地理区域聚类趋势,表明遗传变异与地理距离间没有显著的相关性．     

6株野生植物内生放线菌防病促生作用的初步研究

为了寻找具有内生习性的植病生防放线菌,从采自秦岭的14种野生植物中分离得到29株内生放线菌,对其进行了皿内拮抗试验、发酵液抑菌试验和温室防病促生试验。结果发现,有6株菌表现出显著的抑菌活性,其中菌株SF1对粉红聚端孢、SF4对苹果炭疽菌、SF20对灰葡萄孢均有较强的抑制作用;菌株SG2的代谢产物具有很高的抑菌活性,其发酵滤液对茄链格孢的抑菌圈直径达到35 mm;菌株SG2对温室番茄早疫病的防治效果达到89.72%,菌株SF4对黄瓜白粉病的温室防效达到89.61%,菌株SF20对番茄和黄瓜具有明显的促生作用。可见,从野生植物中分离具有内生习性和抑菌作用的放线菌,直接用于生物防治是可行的。     

A localized negative genetic correlation constrains microevolution of coat color in wild sheep

The evolutionary changes that occur over a small number of generations in natural populations often run counter to what is expected on the basis of the heritability of traits and the selective forces acting upon them. In Soay sheep, dark coat color is associated with large size, which is heritable and positively correlated with fitness, yet the frequency of dark sheep has decreased. This unexpected microevolutionary trend is explained by genetic linkage between the causal mutation underlying the color polymorphism and quantitative trait loci with antagonistic effects on size and fitness. As a consequence, homozygous dark sheep are large, but have reduced fitness relative to phenotypically indistinguishable dark heterozygotes and light sheep. This result demonstrates the importance of understanding the genetic basis of fitness variation when making predictions about the microevolutionary consequences of selection.     

云南野生蓝莓加工技术

蓝莓(Blueberry)属杜鹃花科越桔亚科越桔属常绿灌木小浆果果树,又称越桔、乌鸦果、蓝浆果。全世界约有450种,中国约有90种,24变种,2亚种[1]。蓝莓适宜在北半球大部分地区生长,其果实和叶广泛用于食品工业和医药方面[2]。中国大兴安岭、小兴安岭,华南、华中、华东、西南山区发现