Abstract:16 species of Epilachninae from Taiwan were described in this paper . Among them. Epilachna fenchinica sp. nov. was new to science,and Henosepilochna pytharga(Dieke)was a new record in China.

Abstract:研究了１２个甘蔗基因的蔗茎糖分及一些生理生化性状的遗传和相关。结果表明，除蔗糖分外，所研究的生理生化性状遗传参数均较小。生理生化性状中，比叶重和蛋白质的广义遗传力最大，光合产物转移速率和多酚氧化酶遗传力量小；而相对遗传进度则叶绿素总量和抗坏血酸氧化酶最大，光合强度和中性转化酶最小；相关分析表明蛋白质，中性转化酶和比趺重分别与蔗糖分呈正遗传相关；其余为负遗传相关。通径分析结果：比叶重，光合强度，中性

Abstract:本文通过研究温度对菜蚜茧蜂Ｄｉａｅｒｅｔｉｅｌｌａ ｒａｐａｅ行为功能的影响，揭示了温度对菜蚜茧蜂搜索行为和功能行为反应的干扰作用。在２３℃时，寄生蜂对寄主的搜索能力，产卵管冲刺次数和攻击率都比在１５℃和１８℃时的高；花费较少的时间就能发现第一头寄主。在３０ｍｉｎ内，在１５℃和１８℃时，寄生蜂对寄主的最大寄生个体数量仅为在２３℃和１８℃时，寄生蜂对寄主的最大寄生个体数量仅为在２３℃时的２／５－１／

Abstract:Crude extracts of Ajuga nippcmensis possessed antifeedam and growth regulation effects onthe larvae of the diamondback moth. Chloroform extract was the most effective. Symptoms including slowly appearing prolapse of the anus, blackening of the body wall. and malformation of larvae or prepupae; the reproduction process was also affected which might help inhibit the increase of the population in the field. An insecticide resistant strain of diamondback moth showed no resistance to the extract of Ajuga nippanensis. The authors suggest that applications of extracts of this plant would be a new method for the management of diamondback moth resistance.

Abstract:试验证实，印楝素，闹着花－Ⅲ，黄杜鹃花乙酸乙酯抽提物和藜芦植物粉均能有效地抑制杂拟谷盗种群的繁殖，有开发利用的价值。印楝素对幼虫的生长发育抑制作用较强，是防治杂拟谷盗的一种高效而安全的新型杀虫剂。

Abstract:本研究采用８头初生中国水牛颈胸段脊髓节，横切成３ｍｍ厚的脊髓块，切片前用甲苯胺蓝作细胞体染色。将全部脊髓块横切成２０μｍ，５０μｍ和８０μｍ厚的片，研究结果发现中国水牛颈胸段脊髓存在２２种核团。与印度水牛，其他动物及人的核团比较，发现中国水牛与印度水牛，其他动物及人的核团存在差异。

Abstract:The Lumbosacral and caudal portions of spinal cords from 8 new -born black and white dairy cattle were cut transversely into pieces of 3 mm thickness after being divided into segments. The spinal cord pieces from 7 of the animals were stained with toluidine blue or with Nissl mixture for cell bodies before sectioning. The spinal cord sections from 1 of the animals were stained by Weil's method for myelin sheaths. All spinal cord were cut transversely by paraffin sectioning. It was found that the spinal cord gray matter of the lumbosacral and caudal portions in the dairy cattle could be divided basically into ten laminae as in the cat. However, differences were observed in some of the detailed features. The laminoarchitectures of the spinal cord gray matter of the dairy cattle and other animals including man are also compared in this paper.

Abstract:本文对鸡内眼喹乙醇的毒性及多剂量，中毒剂量的组织浓度进行研究。用寇氏法测得石岐杂鸡内眼喹乙醇的ＬＤ５０为３０４．９ｍｇ／ｋｇ，在饲料中添加喹乙醇０．０１２％及其以上剂量组，连续喂饲２２天后发生中毒死亡。采用定期递增染毒法，喹乙醇的蓄积系数为３．２４，属中等蓄积；以３０ｍｇ／ｋｇ体重剂量每天灌服２次，连用３天的多剂量和１２０ｍｇ／ｋｇ体重的１次中毒剂量给鸡灌服后，定期宰杀动物，用高效液相色谱法测定喹

Abstract:The ultrastructure of tissue stages of Cryptosporidium baileyi parasitising the bursa Fabricii of Shiqiza chickens experimentally infected with parasites isolated from Cherry Valley ducks was studied by transmission electron microscopy. All the stages of the protozoon excepting the motile merozoites, sporozoites or microgametes were in parasitophorous vacuoles formed by microvilli but not in contact with the cytoplasm. Close contact of the parasite with the membrane of the epithelial cell was made by means of the parasite's adhesion zone and feeder organelle between the parasite and epithelial cell. The developed schizonts had eight or four merozoites and the sporulated oocysts had four sporozoites. The anterior end of the merozoite consisted of an apical vesicle, preconoidal ring and conoid. The anterior portion of the merozoite contained rhoptries and micronemes while the posterior portion contained dense bodies, endoplasmic reticulum, golgi bodies and nucleus. No mi-cothondria, polysaccharide granules, micropore or microtubules were found. The macrogametes had 1-4 maturation bodies and two types of wall-forming bodies, as well as polysaccharide granules, endoplasmic reticulum and lipid body.

Abstract:本研究测定了木薯粉的营养成分含量，消化能和代射能，结果如下：以干物质计平均含粗蛋白质２．８±０．７％，粗脂肪０．８±０．２％，粗纤维３．０±０．２％，粗灰分２．２±０．６％，无氮浸出物９１．２±１．５％，钙０．３２±０．１６％，磷０．１±０．．０２％，消化能（猪）为１５．０７±０．５４ＭＪ／ｋｇ，代谢能（鸡）为１４．２３±０．３８ＭＪ／ｋｇ；每公斤干物质含铁１６８±４９ｍｇ，铜９±４ｍｇ，锰４３±

Abstract:The anatomy of the floral bud differentiation and the curd development of broccoli (Bras-sica oleracea var. italica)was studied with dissected microscope and scanning electric microscope. The outermost lateral scape primordia developed first and then the inner primordia. Following the development of the first order lateral scape primordia,the second and third order lateral scape primordia differentiated. Then ,the floral primordia initiated. Though the development of the fourth order lateral scape primordia was very few, the fifth order lateral scape primordia would still differentiate in a few cases. As to the inner part, the lateral scape primordia could only differentiate the first or the second order. Later on,the apex of main scape differentiated into flower primordia and developed into floral bud. The curd of broccoli was an organ product that was consisted of a complex racemose inflorescence with shortened and fleshy main scape and many branch curds. Every branch curd was developed from shortened and fleshy lateral scape of first order or/and other order lateral scapes with the floral buds located on them. The size and weight of the broccoli curd was determined by the number of branch curd and the differentiated orders of lateral scape. The larger number of the branch curds and the lateral scapes was the important morphological index. As the branch curds and their lateral scapes were well developed, the potential production will be obtained. The aim of thes paper is to show with the anatomical point of view that the development of broccoli curd and the differentiation of the lateral scape of branch curds can be regulated in order to get the high quality and quantity of broccoli curd.

Abstract:The growth and leaf mineral content of "Xinhuicheng"and " Jincheng" (Citrus sinensis) young plants on different rootstocks were studied, using virus-free rootstocks and scions kept in isolation. Significant effects of the rootstocks were found on the growth and leaf mineral content. The greatest growth was generally seen on"sough"lemon (Citrus limon)and "Zhuluan" ," Xiaohongcheng" (Citrus aurantium) ,with lesser growth on trifoliata orange (Poncirus trifoliata)and "Banggan" ,"Xing-shansuancheng" (Citurs aurantium)rootstocks. The effect of each rootstock on growth and leaf mineral content of "Xinhuicheng"and "Jincheng"was almost similar. The amount of growth showed a curvilinear relationship with leaf nitrogen content supplied by the rootstocks.

Abstract:The spatial distribution patterns of overwintering larvae of the pine caterpillar were studied by means of index of aggregation regression modle and frequency distribution. The result showed an aggregation distribution pattern for the larvae. Under low population density the distribution of the larvae obeyed Neyman distribution. In a single pine tree the larvae exhibited negative binomial distribution. The larval density between verticillate branches varied greatly and it should be divided into three groups. Different sampling methods were compared and the Z-shaped method found to be the best. The number of trees form which we took samples for survey was 24.

Abstract:Design of a simple preservative system for rubber timber is described in this paper. The system was found to be reliable,practical,cheap and suited to preservative treatment of rubber timber at rubber forest stations in Guangdiong Province and Hainan island.

Abstract:粤西信宜大雾岭林区森林茂密，植物种类丰富，据初步调查，大雾岭有野生维管植物１８４科，６２９属，１２１０种。经分析，大雾岭植物区系具有起源古，老种类丰富，区系成分复杂，热带亚成分占优势，特有现象明显等特点。与其它区系比较的结果表明，大雾岭区系与海南岛，鼎湖山等热带，南亚热带植物区系联系密切，而与武夷山，神农架等中亚热带，北亚热带植物区系联系较弱。在区系的归属上，大雾岭植物区系隶属于古热带植物区。

Abstract:经过鉴定，中国条管蚜蝇属Ｈｅｌｏｐｈｉｌｕｓ Ｍｅｉｇｅｎ １８２２有１１种，其中１新种：黄氏条管蚜蝇Ｈｅｌｏｐｈｉｌｕｓ ｈｕａｎｇｉ Ｌｉ和１中国新记录种：线条管蚜蝇Ｈ．ｌｉｎｅａｔｕｓ。本文对新种进行了描述，并给出中国知种类的检索表及其分布。模式标本保存于华南农业大学植保系昆虫标本室。

Abstract:Wilt diseases of two cultivated medicinal plants in Guangdong province,the common an-drographis (Andrographis paniculata)wilt ,and black pepper (Piper nigrum) wilt ,were investigated and identified. Formae specialis of Fusarium oxysporum were studied . According to the tests morphology , cultural characters and pathogenecity, the wilt disease of common andrographis was caused by Fusarium oiysporum Schl. f. sp. andrographis K. X. Zhou & P. K. Chi,f. sp. nov. .for which impregnated inoculation method was available; the wilt of black pepper was caused by Fusarium oxysporum Schl. f. sp. piperis K. S. Zhou & P. K Chi f. sp. nov. that has close relation to root knot nematode disease. Both of them were formae specialis of Fusarium oxysporum.

Abstract:It is the first report of bacterial brown spot on Phalaenopsis aphrodite Reichb in the continent of China. The isolation of bacteria was obtained from diseased plants in Guangzhou region. According to the morphology,cultural characteristics,pathogenicity,physiological and biochemical tests,the pathogen was identified to be Pseudomonas cattleyae (Pavarino) Savulescu.

Abstract:Hybrid vigor allowed the distant hybrid corn Hua Nong No. 1 silage corn to develop strong root system ,high disease resistance to Helminthosporium turcieum leaf blight and Helminthosporium maydis leaf blight,tolerance towards high temperature,water logging,cold and acid soil conditions. It can adapt to adverse environmental conditions.

Abstract:Studies on the physiological response to water stress in 7-10 varieties (species)of sugarcane were carried out . Drought-resistant varieties (species)had a higher rate of bleeding and higher rate of water losing in detached leaves. The Plasmalemma permeability was increased under the water stress induced by PEG. The permeability was smallerr in drought - resistant varieties (species). Under soil drought stress conditions, drought - resistant varieties (species) accumulated comparatively higher free proline content than those in the less drought - resistant varieties. Cellular bound water content was increased and higher content of cellular bound water was found in drought - resistant varieties (species). The correlation between the change of amylase activity and drought resistance was not verv definite.

Abstract:Researches on essential oils applied against insect pests were reviewed in this parper focusing on four sections as follows:1 Attractancy attractancy of essential oils toward the insects;2 Repellent ,antifeedant and insect growth inhibitory actions of essential oils;.3 Toxicity of essential oils to insect pests;4 Synergistic effect of certain essential oils when mixed with other essential oils or synthetic insecticides.