我国水生蔬菜病害研究现状

柯卫东男,武汉市蔬菜科学研究所副所长兼水生蔬菜研究室主任,推广研究员,享受国务院政府特殊津贴,水生蔬菜行业计划及“十二五”国家科技支撑计划首席专家,主持国家及省、市重大科研项目多项,《植物遗传资源学报》、《长江蔬菜》编委。长期从事水生蔬菜种质资源及育种研究,在水生蔬菜种质资源保护及创新、新品种选育、微型种苗繁殖技术研究与应用等方面有创造性贡献,有力推动了我国水生蔬菜学科建设及产业发展。     

荸荠枯萎病的发生为害与有效防治

柯卫东男,武汉市蔬菜科学研究所副所长兼水生蔬菜研究室主任,推广研究员,享受国务院政府特殊津贴,水生蔬菜行业计划及“十二五”国家科技支撑计划首席专家,主持国家及省、市重大科研项目多项,《植物遗传资源学报》、《长江蔬菜》编委。长期从事水生蔬菜种质资源及育种研究,在水生蔬菜种质资源保护及创新、新品种选育、微型种苗繁殖技术研究与应用等方面有创造性贡献,有力推动了我国水生蔬菜学科建设及产业发展。发表论文、论著100余篇(部),制定农业行业标准9部,取得国家发明专利3项,获国家科技进步奖二等奖、第四届全国杰出专业技术人才奖等。     

菰黑粉菌的研究进展

正柯卫东男,武汉市蔬菜科学研究所副所长兼水生蔬菜研究室主任,推广研究员,享受国务院政府特殊津贴,水生蔬菜行业计划及"十二五"国家科技支撑计划首席专家,主持国家及省、市重大科研项目多项,《植物遗传资源学报》、《长江蔬菜》编委。长期从事水生蔬菜种质资源及育种研究,在水生蔬菜种质资源保护及创新、新品种选育、微型种苗繁殖技术研究与应用等方面有创造性贡献,有力推动了我国水生     

荔浦县水生蔬菜产业优势、现状、问题及发展对策

分析了荔浦县水生蔬菜产业发展优势,生产现状、发展经验及存在的问题,提出了要加大政府资金扶持力度,加大对水生蔬菜的研究和技术示范,选种新品种,推广标准化管理,提高市场竞争力和市场占有率,加强食品安全监管,开发生态旅游项目等水生蔬菜产业发展的对策。     

一粒植根水田的种子——访武汉市蔬菜科学研究所副所长柯卫东

<正>柯卫东男,武汉市蔬菜科学研究所副所长兼水生蔬菜研究室主任,推广研究员,享受国务院政府特殊津贴,水生蔬菜行业计划及"十二五"国家科技支撑计划首席专家,主持国家及省、市级重大科研项目多项,《植物遗传资源学报》、《长江蔬菜》编委。长期从事水生蔬菜种质资源及育种研究,在水生蔬菜种质资源保护及创新、新品种选育、微型种苗     

铅山红芽芋产业发展概况

正柯卫东男,武汉市蔬菜科学研究所副所长兼水生蔬菜研究室主任,推广研究员,享受国务院政府特殊津贴,水生蔬菜行业计划及"十二五"国家科技支撑计划首席专家,主持国家及省、市重大科研项目多项,《植物遗传资源学报》、《长江蔬菜》编委。长期从事水生蔬菜种质资源及育种研究,在水生蔬菜种质资源保护及创新、新品种选育、微型种苗繁殖技术研究与应用等方面有创造性贡献,有力推动了我国水生蔬菜学科建设及产业发展。发表论文、     

广西水生蔬菜产销现状及产业发展建议

广西水生蔬菜以外销为主,但产业发展程度不高、产品竞争力不强、市场体系尚不完善,当地积极创新多种水生蔬菜间套种模式,提高农业叠加效应,开展组培苗研发推广,推动科技兴菜,效益显著。在此基础上,广西制定了2010-2015年水生蔬菜的发展目标,进行产量产值目标规划,拟打造桂北、桂东荸荠,桂中、桂南、桂西双季莲藕,桂东、桂北水生蔬菜出口加工创汇三大优势产区,并提出了推进产业发展的重大政策及关键措施。     

柳州市水生蔬菜产业发展现状及规划

分析阐述了柳州市水生蔬菜产业的基本情况、资源分布、产品开发等现状,总结了水生蔬菜产业在生产、管理、技术探索中取得的成果．并提出柳州市水生蔬菜产业发展的总体规划与促进产业发展的主要策略。     

武汉黄陂地区子莲早春种植管理技术

<正>柯卫东男,武汉市蔬菜科学研究所副所长兼水生蔬菜研究室主任,推广研究员,享受国务院政府特殊津贴,水生蔬菜行业计划及"十二五"国家科技支撑计划首席专家,主持国家及省、市重大科研项目多项,《植物遗传资源学报》、《长江蔬菜》编委。长期从事水生蔬菜种质资源及育种研究,在水生蔬菜种质资源保护及创新、新品种选育、微型种苗繁殖技术研究与应用等方面有创造性贡献,有力推动了我国水生蔬菜学科建设及产业发展。发表论文、     

荔浦芋生产现状、问题及发展对策

正柯卫东男,武汉市蔬菜科学研究所副所长兼水生蔬菜研究室主任,推广研究员,享受国务院政府特殊津贴,水生蔬菜行业计划及"十二五"国家科技支撑计划首席专家,主持国家及省、市重大科研项目多项,《植物遗传资源学报》、《长江蔬菜》编委。长期从事水生蔬菜种质资源及育种研究,在水生蔬菜种质资源保护及创新、新品种选育、微型种苗繁殖技术研究与应用等方面有创造性贡献,有力推动了我国水生蔬菜学科建设及产业发展。发表论文、论著100余篇(部),制定农业行业标     

氮磷钾硼肥配施对青花菜养分吸收分配及产量和品质的影响

研究了不施肥处理,氮磷钾配施和增施硼肥对青花菜养分吸收分配及产量和品质的影响。结果表明,现蕾期至花球膨大期,青花菜对氮、磷、钾的吸收量最大,整个生长期对钾的吸收最多,氮次之,磷最少。氮磷钾主要分配在叶片中,现蕾后逐渐向花球转移,从现蕾到采收时,叶片中氮、磷、钾分配率分别降低了19.6%、10%和9.0%,花球中氮磷钾分配率分别提高了23.1%、15.9%和11.1%。不施氮、磷、钾肥显著降低了花球产量、维生素C含量和成品率,增施硼肥处理的花球成品率较氮磷钾肥处理提高了4.8%,不施氮肥和钾硫肥(K₂SO₄)显著降低了花球中的硫代葡萄糖苷含量。相关性分析表明,青花菜产量与植株内氮、钾积累量显著正相关,成品率与植株内磷营养显著正相关。     

江汉平原麦瓜棉菜一年四熟栽培技术

江汉平原是国家优质粮食、优质棉花和双低油菜重要生产基地,也是湖北省西瓜主产区。种植西瓜对增加农民收入、丰富市场、发展农村经济、提高土地利用率具有重要作用。江汉平原西瓜生产的突出特点是间作套种,早在20世纪70年代就推广了“麦／／瓜-稻”这种水旱、粮经作物配套种植的优化模式．并获得原荆州地区科技进步二等奖。由于西瓜间作套种提高了单位面积的经济效益、     

Up-regulation of mRNA expressions of fas,bcl-2, bim,bax, caspase-3, caspase-9, and bcl2l12 in K562 treated with bortezomib

AIM: To detect the treatment of K562 leukemia cells with bortezomib altering the expression of genes fas, bcl-2, bcl2l12, bim, bax, caspase-9 and caspase-3.METHODS: MTT assay was used to detect the inhibition of proliferation. Apoptosis was detected by Annexin-V staining and mitochondrial transmembrane potential (Δψm). RT-PCR was used to analyze the mRNA expressions of fas, bcl-2, bcl2l12, bim, bax, caspase-3 and caspase-9.RESULTS: Bortezomib caused a time- and dose-dependent inhibition of cell proliferation and IC50 of 24 h and 48 h were 161.41 nmol/L and 96.33 nmol/L, respectively. At the concentration of 104 nmol/L, bortezomib induced apoptosis in a time-dependent manner, including increasing annexin-V positivity and decreasing the Δψm. RT-PCR showed that bortezomib up-regulated the mRNA expression of fas, bcl2l12, caspase-9 and caspase-3, but mRNA expressions of bcl-2, bim and bax did not changed obviously.CONCLUSION: Bortezomib inhibits the proliferation of K562 and induces apoptosis, in which fas, bcl2l12, caspase-9 or caspase-3 gene is one of the main genes taking part in.     

Climatic, landform, microtopographic, and overstory canopy controls of tree invasion in a subalpine meadow landscape, Oregon Cascades, USA

Tree invasions have been documented throughout Northern Hemisphere high elevation meadows, as well as globally in many grass and forb-dominated ecosystems. Tree invasions are often associated with large-scale changes in climate or disturbance regimes, but are fundamentally driven by regeneration processes influenced by interactions between climatic, topographic, and biotic factors at multiple spatial scales. The purpose of this research was to quantify spatiotemporal patterns of meadow invasion; and how climate, larger landforms, topography, and overstory trees have interactively influenced tree invasion. We combined airborne Light Detection and Ranging (LiDAR) characterizations of landforms, topography, and overstory vegetation with historical climate, field measurements of snow depth, tree abundance, and tree ages to reconstruct spatial and temporal patterns of tree invasion over five decades in a subalpine meadow complex in the Oregon Cascade Range, USA. Proportion of meadow occupied by trees increased from 8?% in 1950 to 35?% in 2007. Larger landforms, topography, and tree canopies interactively mediated regional climatic controls of tree invasion by modifying depth and persistence of snow pack, while tree canopies also influenced seed source availability. Landscape context played an important role mediating snow depth and tree invasion; on glacial landforms tree invasion was negatively associated with spring snowfall, but on debris flows tree invasion was not associated with snow fall. The importance of snow, uncertain climate change impacts on snow, and mediation of snow by interacting and context dependent factors in complex mountain terrain poses substantial hurdles for understanding how these ecotones may respond to future climate conditions.     

Comparison of yield,fruit quality,antioxidant activity,and some phenolic compounds of white seedless grape obtained from organic,conventional, and integrated fertilization

The aim of this research was to determine the effect of three different fertilizing systems, including organic, conventional, and integrated ones, on the yield, fruit quality, antioxidant activity, and some phenolic compounds of white seedless grape. The study was carried out on several 6-year-old white seedless grapevine located in the Urmia Province (North-West Iran). The results showed that the fruit physical characteristics and yield were affected significantly by different fertilization systems. The highest yield was observed in the conventional fertilization, followed by organic and integrated systems. The leaf mineral contents were obviously dependent on the different fertilization used, whereas pH and titratable acidity were not affected. Based on our results, the highest values of antioxidant activity and total flavonoid were found in the organic and integrated fertilization systems, respectively. Also, the highest contents of total phenolic, catechin, and quercetin-3-galactoside were observed in the organic fertilization system. Overall, the highest nutritional quality and biochemical characteristics of white seedless grape were obtained in organic fertilization system, which improved antioxidant capacity by enhancing total phenolics, total flavonoids and valuable phenolic compounds.     

中国''''99昆明世界园艺博览会蔬菜瓜果园

蔬菜瓜果园作为中国’99昆明世界园艺博览会六大专题展园之一 ,占地 4 90 0ｍ2 。园内以农舍草屋为中心 ,通过瓜架、篱笆、草亭及蔬菜瓜果栽培 ,构出一幅农家乐园式的田园风光。另外 ,通过集中展示中国蔬菜瓜果的科技生产水平 ,丰富的资源优势 ,色彩缤纷、新奇别致的蔬菜瓜果品种 ,来突出本次世博会的主题“人与自然 ,和谐发展———迈向 2 1世纪” ,从而展现“蔬菜瓜果园艺是人类赖以生存的重要食源和艺术”为主题思想的蔬菜瓜果园内涵。　　蔬菜瓜果园位于世博园主入口世博大道南侧 ,与盆景园、药草园相邻。在总体布局、栽培上充分运用园…     

Some responses of cucumber,grown in beds of peat,to N,K and Mg

Two levels of N and four levels of K, applied to beds of sphagnum peat before planting (Experiment A), were tested in factorial combination with three concentrations of N (50, 175 and 300 mg 1^-1) and two of K (50 and 250 mg T1) in the liquid feed. In three cucumber crops grown, Mg was supplied or omitted before planting as a split plot factor (96 subplots). In two further crops (Experiment B), grown in fresh peat, six concentrations of N (20-320 mg 1^-1) were tested in the liquid feed, all other nutrient levels being constant. In Experiment A, the early yield was reduced by low and high levels of N. The main effect of N on the final yield was not significant, but maximum yield was achieved with 175-300 mg 1^-1 N in the liquid feed where the peat received a small amount of ureaformaldehyde (15 g m“2) and Mg fertilizer. The N x Mg interaction became increasingly marked with successive crops; the loss in yield due to Mg deficiency (<31%) increased with the amount of N applied. K deficiency reduced the yield by up to 66%, and very high levels of K also tended to decrease the yield. The K x Mg interaction became more marked with time and the loss in yield due to Mg deficiency (<23%) increased with the amount of K applied. Leaves from N, K and Mg deficient plants contained <2.5% N, <1.0% K and <0.28% Mg respectively. In Experiment B, where N was supplied only in the liquid feed, the highest yield was obtained at 220 mg 1^-1. The relation between yield and the total amount of N supplied in the feed was defined by a quadratic regression.     

盆景果树的发展、特点及价值

盆景果树集"艺术欣赏与果实享用"于一身。文章重点阐述盆景果树的定义、发展史与现状、分类与特点、文化和经济的双重价值等内容。     

早熟优质迷你西瓜品种玲珑王的选育

玲珑王是杂交一代西瓜新品种,早熟,全生育期100 d,果实发育期28 d.植株长势中强,低温弱光条件下坐果性好,果实商品率较高.果实椭圆形,果彤指数1.28.果皮绿底覆深绿色窄条带,皮厚约5 mm,果肉鲜红色,中心折光糖含量11.7%,肉质细脆,汁多纤维少,口感风味好.抗病性、抗逆性较强.单瓜质量1.5 kg,1 hm2产量达到33 000～58 500 kg.