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Advances in Agaricus bitorquis Genetics and Breeding Research

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食用菌学报 2007年第4期 81-86页

作者： CAI Weiming1,JIN Qunli1,FENG Weilin1,FAN Lijun1,LI Nanyi1(Horticultural institute,Zhejiang academy of agricultural sciences,Hangzhou,Zheijiang 310021,china)

Advances in research on Agaricus bitorquis mating and breeding systems,and the breeding of new strains of this mushroom both in china and overseas,have been *** in our understanding of the genetic basis of homokaryotic fruiting,nuclear migration and mitochondrial inheritance,has been *** three main groups of *** strains (temperate,bridging and tropical) categorized on the basis of mating behavior,and the distribution of homogenic and heterogenic incompatibility within the groups,have been *** problems have been identified,and proposals made for future research.

关键词： Agaricus bitorquis Genetic characteristics Breeding advances

元谋盆地土地利用/土地覆盖对冲沟侵蚀的影响

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水土保持学报 2004年第2期18卷 130-132页

作者：范建容刘淑珍周从斌王小丹朱宏业朱波中国科学院水利部成都山地灾害与环境研究所四川成都610041 西南交通大学四川成都610031 云南省农业科学院热带亚热带经济作物研究所云南元谋651300

金沙江干热河谷元谋盆地冲沟发育,冲沟侵蚀蚕食耕地、最终形成侵蚀劣地,对土地资源危害很大。根据对9条冲沟17个沟头连续3年的观测与调查资料,分析了元谋盆地土地利用/土地覆盖对冲沟侵蚀的影响,包括冲沟集水区不同土地利用方式、植被... 详细信息

金沙江干热河谷元谋盆地冲沟发育,冲沟侵蚀蚕食耕地、最终形成侵蚀劣地,对土地资源危害很大。根据对9条冲沟17个沟头连续3年的观测与调查资料,分析了元谋盆地土地利用/土地覆盖对冲沟侵蚀的影响,包括冲沟集水区不同土地利用方式、植被群落结构对冲沟溯源侵蚀的影响和沟底植被覆盖度对冲沟溯源侵蚀的影响。

关键词：元谋盆地土地利用土地覆盖冲沟侵蚀

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菠萝叶纤维结构及其热力学性能研究

上海纺织科技 2009年第10期37卷 9-12页

作者：黄涛蒋建敏王金丽连文伟张劲邓怡国中国热带农业科学院农业机械研究所广东湛江524091 中山大学药学院广东广州510080

借助扫描电镜、红外光谱、X-射线衍射、热重分析、差示扫描量热分析等手段，研究了菠萝叶纤维的化学结构、结晶度和热惜能。结果表明：菠萝叶纤维表面有纵向裂缝和孔洞；红外结晶指数为0．923；其纤维素属于纤维素Ⅰ，纤维结晶度为76．6... 详细信息

借助扫描电镜、红外光谱、X-射线衍射、热重分析、差示扫描量热分析等手段，研究了菠萝叶纤维的化学结构、结晶度和热惜能。结果表明：菠萝叶纤维表面有纵向裂缝和孔洞；红外结晶指数为0．923；其纤维素属于纤维素Ⅰ，纤维结晶度为76．63％，取向度为99．08％；最大热质量损失发生在300—400℃。

关键词：韧皮纤维叶纤维菠萝叶纤维形态结构热力学性能

EFFECTS OF AGERATUM CONYZOIDES ON SOIL ENZYME ACTIVITIES AND PHYSICAL AND CHEMICAL PROPERTIES IN DIFFERENT INVASIVE DURATION

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EFFECTS OF AGERATUM CONYZOIDES ON SOIL ENZYME ACTIVITIES AND...

金沙江干热河谷脆弱生态系统植被恢复及可持续生态农业模式

International Congress on Biological Invasions

作者： Gui-Hua ZHANG~(1,2),Guang-Yi LI~1,and Qin-Fen LI~1 1 Key Laboratory of Monitoring and Control of tropical agricultural and Forest Invasive Alien Pests,Ministry of Agriculture,Environment and Plant Protection institute,CATAS,Danzhou Hainan china 571737. 2 College of Environment and Plant Protection,Hainan University,Danzhou Hainan china 571737

Ageratum conyzoides *** an invasive weed native to tropical America,which has invaded south and south-west of china and become a regional nixious *** field study,we find that rubber(Hevea brasiliensis) forest opening is always invaded by ***,which grows as *** research suggested that exotic plant invasion could alter ecological condition of soil in invaded *** present study compared effects of ***,which invaded the rubber forest ecosystem,on nine soil properties and activities of six soil enzyme in one-year and more than two-year invasive *** results indicated that:(1)PH value did not change significantly between non-invaded site and one-year-history invaded site, however,PH increased with the extention of invasive time.(2) SOM decreased and positive correlation existed among SOM,catalase and invertase,while cellulase firstly increased then decreased.(3) Total N and NO-N raised,whereas NH-N showed the same variable regularity with cellulase;good relevance occurred between urease and total N,protease did not significantly altered.(4) Total P declined,available P heightened and no obvious relevance appeared between phosphatase and total P.(5) Total K rised and available K *** conclusion,*** invasion altered the soil characteristics and soil enzyme activities of rubber forest opening,which probably enhanced its viability and competitive capacity in order that it could supplant and suppress other herbage growth.

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水土保持学报 2003年第5期17卷 19-22页

作者：纪中华刘光华段曰汤沙毓沧李建增云南农业科学院热带亚热带经济作物研究所云南元谋651300

金沙江河谷脆弱生态系统具有:干旱程度加剧,土壤凋萎湿度(PWP)长达7～8个月,使许多植物无法生长;水热矛盾突出;水土流失严重;人为破坏频繁;植物群落破坏容易,恢复难;土壤胀缩性高而不利于作物生长等特点。其中水分短缺是脆弱生态系统最... 详细信息

金沙江河谷脆弱生态系统具有:干旱程度加剧,土壤凋萎湿度(PWP)长达7～8个月,使许多植物无法生长;水热矛盾突出;水土流失严重;人为破坏频繁;植物群落破坏容易,恢复难;土壤胀缩性高而不利于作物生长等特点。其中水分短缺是脆弱生态系统最严重的问题。因此,植被恢复以及可持续发展模式的建立应按水分来源划分为不同的建设系统,即:雨养生态系统,保水补灌系统,适水灌溉系统。针对不同系统,从整体性、紧迫性、持久性、创新性、多样性、高效性、层次性角度提出金沙江干热河谷退化生态系统植被恢复及可持续生态农业模式。即生物立体共生的生态农业模式、物质循环利用的生态农业模式、生态环境综合治理模式、资源开发利用综合模式、综合发展与全面建设的生态农业模式。

关键词：脆弱生态系统植被恢复与生态农业模式金沙江干热河谷

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昆明地区非洲菊疫病的PCR技术检测

西南农业学报 2004年第B5期17卷 221-223页

作者：冯光恒王继华王丽花毕云青云南省农业科学院热带亚热带经济作物研究所云南元谋651300 云南省农业科学院园艺所质检中心云南昆明650205

以PCR技术检测非洲菊疫病比传统方法迅速,检测效率明显。从3个模板DNA源(病株、病株栽培土、通过病株槽的灌溉水)提取的目的DNA均可通过PCR技术检测出隐地疫霉菌的存在。当灌溉水中隐地疫霉的孢子浓度达1×102/ml的数量级时,便可以通过... 详细信息

以PCR技术检测非洲菊疫病比传统方法迅速,检测效率明显。从3个模板DNA源(病株、病株栽培土、通过病株槽的灌溉水)提取的目的DNA均可通过PCR技术检测出隐地疫霉菌的存在。当灌溉水中隐地疫霉的孢子浓度达1×102/ml的数量级时,便可以通过PCR技术检测出来。

关键词：昆明地区非洲菊疫病 PCR 检测 DNA

Study on Developing Mechanism of Rubber-tea-chicken Agro-forestry Model in tropical Area of china

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Study on Developing Mechanism of Rubber-tea-chicken Agro-for...

Developmental Strategies of Betel Nut Industry in Hainan Province

第三世界生态高峰会

作者： Meng Qingyan~(1 2) Wang Zhaoqian~3 1 Stale Key Laboratory of Remote Sensing Science,Jointly Sponsored by the institute of Remeote Sensing Applications of chinese academy of sciences and Beijing Normal University Beijing 100101,china:2 Center for Spaceborne Remote Sensing Demonstration.National Space Administration,Beijing,100101,china:3 Agro-Ecology Research institute,Zhejiang University,Hangzhou 310029,china

Developing mechanism of rubber-tea-chicken eco-agricultural model—a typical tropical agro-forestry in Wenchang,Hainan province was studied with *** technology progressing model,stability indicator,as well as harmonizing *** correlation coefficient and producing dominance *** rational mechanism could be mainly induced as:technique promoting function, leverage function of dominance item(livestock husbandry),stability of model structure and harmony of its components,the model pillar product's meeting market need and government's supporting and drawing of favor *** study was aimed at finding out both the rational and the limiting factors in the development of the model and, fnrthermore,putting forward approaches of optimizing the model according to the local situation.

关键词： Mechanism Agro-forestry System Eco-agricultural Model Rubber-tea-chicken

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Asian agricultural Research 2010年第12期2卷 1-4页

作者： CHEN Jun, HAN Xuan, LIU Li-yun, FENG Mei-li, LI Zhuan, QIN Hai-tang Coconut Research institute of china academy of tropical agricultural sciences, Wenchang 571339, china

The developmental status of the betel nut industry is introduced, including cultivation situation, processing and development situation, and consumer market situation. The result shows that the cultivation of betel nut in Hainan Province develops rapidly and the primary processing of betel nut has formed certain scale, but the deep processing of betel nut is backward. Except for the mino amount of the betel nuts consumed by Hainan Island, a large majority of the betel nuts are processed into dry fruit to sell to Hunan Province to reprocess. The problems exist in the development of betel nut industry in Hainan Province are analyzed, covering blind cultivation, extensive management, backward processing, lagged new product development and the single and concentrated consumer market. The strategic choice of developing the betel nut industry of Hainan Province is analyzed as well. Hainan Province should carry out the green, sustainable, diversified, cooperative and export-oriented industrial developmental strategy.

关键词： Betel nut Hainan Province Industry Developmental s

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干旱环境对罗望子水分生理的影响

西南农业学报 2004年第6期17卷 730-732页

作者：纪中华李建增沙毓沧云南省农业科学院热带亚热带经济作物研究所云南元谋651300

罗望子(Tamarindusindica)是抗逆性较强的树种,适应于干热河谷生长。为了探讨其抗逆机理,研究了干旱环境对罗望子树体水分生理的影响。结果表明,当植物在干旱季节,植物体内束缚水含量大于自由水含量导致植物代谢缓慢,同时,植物体内脯氨... 详细信息

罗望子(Tamarindusindica)是抗逆性较强的树种,适应于干热河谷生长。为了探讨其抗逆机理,研究了干旱环境对罗望子树体水分生理的影响。结果表明,当植物在干旱季节,植物体内束缚水含量大于自由水含量导致植物代谢缓慢,同时,植物体内脯氨酸含量升高,对植物起保护作用。研究还发现,植物体内水分下降,脯氨酸含量上升时期晚于大气干旱、土壤干旱时期。因此,在栽培管理方面,人工补灌的时间应与大气干旱的时间同步,以免造成土壤干旱,导致植物严重缺水而影响生长。

关键词：罗望子水分生理干旱环境