光照对药用植物有效成分含量的影响

概述了近10a来光照条件与药用植物有效成分之间关系的研究进展。     

湖南小溪国家级自然保护区野生药用植物资源研究

对小溪国家级自然保护区的野生药用植物资源进行了初步调查。结果表明，小溪自然保护区有野生药用植物200科685属1420种。在介绍了88个科106种重要的药用植物药用部位和药用功能的基础上，就如何开发利用和保护药用植物资源提出了建议。     

昆虫化学信息物质概述

昆虫化学信息物质以其微量i高效、无污染、与农药兼容等特点而成为当前世界各国昆虫学家研究的热点问题，它们的应用范围非常广泛，本文对昆虫化学信息物质的概念进行了综述，阐述了其包含的种类的相互关系和相应的概念以及在农、林业害虫领域中的应用效果，展望了昆虫化学信息物质的发展前景。     

在人工接种和自然感虫情况下美洲黑杨后代对桑天牛抗性的研究

杨树 (Ｐｏｐｕｌｕｓｓｐｐ .)是我国主要造林和工业用材树种之一 ,据统计我国杨树人工林面积达 666×1 0 4ｈｍ2 (王世绩 ,1 995 )。但杨树天牛危害十分猖獗 ,其中光肩星天牛 (Ａｎｏｐｌｏｐｈｏｒａｇｌａｂｒｉｐｅｎｎｉｓ)和黄斑星天牛 (Ａｎｏｐｌｏｐｈｏｒａｎｏｂｉ     

试论热带森林害虫的一些生物学特色

本文论述了热带森林害虫生物学的特殊性!包括世代、寿命、产卵延续期、异常生物学、滞育、休眠、拟态和伪装。经研究发现:热带林虫繁殖快,世代多,象虫寿命和产卵延续期长,球象幼虫别具一格的取食习性,摹拟眼镜蛇的赤顶粉蝶幼虫,用寄主花序伪装的母生花尺蛾幼虫等。     

Plant species diversity of homegardens of Cuba and its significance for household food supply

The cultivation of different plants in homegardens for self-sufficiency has a long tradition in Cuba, but knowledge about homegardens in Cuba is small. To analyse this more deeply, cultivated plants of 31 homegardens were surveyed in three villages in eastern Cuba in 2001. Two of the study villages were located in a humid area with an annual precipitation of about 2200 mm. The third village was situated in a semiarid area with about 450 mm precipitation. The plants studied in the homegardens included those for human consumption such as fruits, vegetables, tubers and cereals as well as spices and medicinal plants. In total, 101 different plant species were found with an average number of 18 to 24 species per homegarden for the three villages. A broad range of species was found in all villages, because irrigation is used under semiarid conditions, which lead to a relative high similarity in species composition between the villages. But, also differences due to the climatic situation became evident, particularly with the medicinal plants. In general, homegarden production provided a broad and diverse basis for self-sufficiency of the households. Although homegarden production showed to be only a small source of income, it is particularly important because of low-paid outside work and minimal food provision of the state.This revised version was published online in November 2005 with corrections to the Cover Date.     

小兴安岭药用植物资源现状及合理开发利用

调查统计结果表明 ,小兴安岭常用药用植物 2 9种 ,年蕴藏量约 12 3万 t,允收量为 2 2万 t。目前 ,年收购量仅为 12 5 5 t,存在极大开发利用潜力 ,同时提出了合理开发利用的几点建议     

帽儿山地区金龟类访花甲虫的调查分析

通过对黑龙江帽儿山地区金龟类访花甲虫种类的初步调查,结果表明,访花金龟共有15种,其中花金龟科有7种(46.67%),丽金龟科5种(33.33%),斑金龟科2种(13.33%),鳃金龟科1种(6.67%);优势种3种:短毛花金龟、小青花金龟和白星花金龟。金龟类访花优势种,主要访问的植物种类有:珍珠梅、深山唐松草、柳叶绣线菊、鸡树条荚蒾、蚊子草等。并对金龟类访花甲虫对花的选择特征进行了总结。     

EFFECTIVENESS OF ACEPHATE IMPLANTS IN PROTECTING CONES FROM INSECT DAMAGE IN SOME CONIFERFORESTS OF NORTHEASTERN CHINA

lNTRoDUCTloNInChina,onlyafewexperimentshavebeenperfbrmedtotestinsecticidessusceptibletopreventconesandseedsfrominsectdamage(Anonymousl986,GaoBuquetal.l99l,YueShukuil992,LiuYikong1993).Moreover,thesetestsonlyconsistedofsprayingchemi-cals,thatmayinduceharInfulconsequencesuponenvironment.TheintensifiedeffoftofafforestationinNortleasternChinarecentlyrequiredtoestablishlnyenumbersofseedorchards,aswellasparent-trCestands,inordertoprovideforesterswithhigh-qualityseeds,especiallyinlarch.Thispr…