秋延后大棚辣椒栽培技术

秋延后辣椒在本地己种植十多年，生产青椒多次采收，或保红椒一次性采收上市，供应元旦和春节两个节日蔬菜市场。生产周期短，效益好，如采收青椒上市，亩产量3000kg左右，如采收红椒上市，亩产量1500kg左右，亩效益4000—6000元。     

辣椒早熟快红无公害栽培技术

<正>江西省永丰县为全国首批无公害蔬菜生产基地县之一,全国闻名的辣椒之乡,常年种植早辣椒面积约7750hm2,远销广东、湖南、湖北、福建、山东、浙江、北京、上海等省市。但由于近年各地蔬菜生产蓬勃发展,在春椒集中上市的5～6月份,市场上青椒开始滞销,价格低廉;而红椒的销售价格往往比青椒的高出1倍以上,经济效益显著。现在将辣椒早熟快红无公害栽培技术介绍如下。     

冷冲击处理对鲜切青椒贮藏品质的影响

以鲜切青椒为材料.考察常温储藏前作-18℃20 min冷冲击处理对鲜切青椒贮藏品质的影响.试验结果表明.冷冲击处理对鲜切青椒的品质方面有不同的影响.适当的冷处理可以保持鲜切青椒的硬度、咀嚼度,抑制腐烂.但对脆性、色泽等品质有不利的影响.同时,适当的冷处理可以保持鲜切青椒中的抗坏血酸含量.     

日光温室冬春茬青椒无公害生产栽培技术

从品种选择、育苗、定植、定植后的管理、病虫害防治及采收等方面对日光温室冬春茬青椒无公害生产栽培技术进行综述。     

辣椒品种比较试验初报

为筛选出适合衡阳地区种植的优质辣椒品种,作者以丰辣3号作对照,对丰源系列6个辣椒品种进行了比较试验。试验结果表明,丰源长螺为早熟线椒,可作早熟品种栽培;丰源15号为早熟牛角椒,可作鲜青椒或红椒上市;丰源特长、丰源3号和丰源8号为中早熟线椒,可作干辣椒加工剁辣椒种植;丰源大螺为中早熟长羊角椒,可作鲜青椒或红椒上市。总之,各参试丰源系列辣椒品种果实光泽度好,风味佳,抗病抗逆性较强,产量高,可作为不同食用类型的辣椒品种在衡阳地区推广种植。     

无公害秋延迟辣椒设施配套栽培技术

东台市为国家级无公害蔬菜出口示范基地县(市),"怡丰"牌无公害青椒是大棚设施蔬菜栽培的主体品种,其中秋延迟种植面积稳定在0.4万hm2。由于本地区在秋延迟辣椒栽培前期高温炙热、台风     

无公害秋延迟辣椒设施配套栽培技术

东台市为国家级无公害蔬菜出口示范基地县（市），“怡丰”牌无公害青椒是大棚设施蔬菜栽培的主体品种，其中秋延迟种植面积稳定在0．4万hm^2。由于本地区在秋延迟辣椒栽培前期高温炙热、台风暴雨频发，后期又转处于低温寡照的环境，病虫害发生重等不利因素制约着青椒的产量和品质。为此，笔者近年来借助于创建国家级“蔬菜病虫害综合防控示范园区”过程中，采用“两网（防虫网、遮阳网）一膜”覆盖技术育苗或栽培，运用黄板诱杀害虫等配套技术种植，使辣椒延迟到元旦，春节上市。     

淮安地区大棚辣椒多样化周年供应栽培技术

<正>淮安市是江苏省辣椒主产区,大棚栽培辣椒种类多样,周年供应,形成了自己的特色,在全国有一定的知名度,产品行销多个省份。大棚辣椒栽培有秋红椒栽培、秋青椒栽培、春青椒栽培、春红椒栽培四种形式,按667m2计算,红辣椒一般产量2000~2500kg,效益5000~9000元;青椒一般产3000kg左右,效益超6000元。     

空间诱变对青椒影响的初步研究

通过空间诱变处理青椒干种子,并以地面种植后采收的种子为对照,分析空间环境条件对青椒的形态变化特点的影响,同时利用RAPD技术对DNA的变化特点进行了分析。结果表明:空间环境条件改变了青椒的形态,同时诱发了基因组的突变,说明空间诱变是产生青椒变异的一种有效手段。     

成都平原秋延辣椒大棚高产栽培技术

我国辣椒种植面积非常大,四川是喜欢吃辣椒的地区,一年四季均有种植。成都平原有春大棚、春露地、秋延栽培这几种种植模式。秋延大棚栽培7月育苗,8月移栽,国庆节前后上市。种植品种以四川杂交二金条为主,以青椒上市供应本地消费市场。在大棚种植可免受霜冻影响,一直采收至12月底。依据成都平原的气候特点,从品种选择、种植管理、病虫害防治、采收等环节介绍了成都平原地区秋延辣椒的高产高效栽培技术。     

蚓粪复合基质对康乃馨育苗及其生长的影响

以蚓粪、椰糠、泥炭、珍珠岩、蛭石为原料,按不同比例混合,研究其对康乃馨出苗率、株高、茎粗、叶长、叶片数、分支数、地上部干重、地下部干重、根冠比、壮苗指数等生长指标的影响,筛选出最佳基质配方.结果表明:椰糠和蚯蚓粪明显地促进康乃馨的生长发育,以60％蚓粪+10％椰糠+30％混合矿物(珍珠岩:蛭石=1∶1)处理综合效果最理想,最有利于康乃馨形成壮苗.所得到的复合基质的容重、总孔隙度、毛管持水量、通气孔隙度和pH均符合育苗基质的要求.     

Biological features and effects of resveratrol

Resveratrol is a kind of polyphenolic compounds, which appears in more than 70 species of plant, such as grape, peanut, and Polygonum cuspidatum. The paper reviews the biological characteristics of resveratrol, including the molecular structure, source, absorption and metabolism. The biological effects of resveratrol, including cancer prevention, cardioprotective effect, the suppression of inflammation, neuroprotective effect, phytoestrogen action, and treatment of severe shock are also discussed     

Fumigant Use for Strawberry Production in Europe: The Current Landscape and Solutions

ABSTRACT

The impact of methyl bromide (MB) phase-out on important fruit and nursery industries in the EU (2005/2008) has been significant. Under EU Regulation 1107/2009, MB fumigant alternatives 1,3-dichloropropene and chloropicrin were also phased out (in 2010 and 2013, respectively) while dazomet, metam sodium, and potassium were re-approved with crucial restrictions of rates and years of application. However, currently an EU Member State may authorize use of these phased-out fumigants for 120 days/year. This exemption has been used for strawberry (fruit and nursery production) and other crops in Spain, Italy, Belgium, France, UK, Cyprus, Malta, and Greece in recent years. To provide an update of the current situation, a comprehensive survey of 41 European and other industries has been completed. Most of them use crop rotation as the main pest management solution. Non-chemical solutions, in particular soilless cultivation, are important in the UK, Ireland, France, the Netherlands, and Belgium. Chemical fumigation is still important in Spain, Italy, Morocco, Turkey, France, and Belgium.     

氮磷钾肥配施对金盏花产量的影响

为了解氮磷钾配施对金盏花产量的影响,采用"3414"回归设计,对不同氮磷钾配施与鲜花产量关系进行研究。结果表明:氮、磷、钾肥配施能够显著提高金盏花的鲜花产量,各施肥处理的鲜花产量分别比不施肥处理增产4 312.02~12 471.92 kg/hm2。最优产量为48 382.98kg/hm2,其施肥量为:N 169.68 kg/hm2,P2O5111.16 kg/hm2,K2O 67.13 kg/hm2,1 hm2多增加纯收入5 282.04元。     

Effect of LPS on phagocytosis of rat Kupffer cells in vitro

AIM:To investigate the effect of LPS on phagocytosis of Kupffer cells in vitro. METHODS:Isolated Kupffer cells were treated with LPS in vitro. The phagocytosis, microfilament, microtubules and apoptosis of Kupffer cells were determined by the beads phagocytosis test, fluorescence staining, fluorometry and flow cytometric analysis.RESULTS:LPS enhances the phagocytosis, actin content, microtubules fluorescence density of Kupffer cells in vitro, while at a large dose or for a long time, it lessened the phagocytosis increasing or phagocytosis, inhibites the microfilament and microtubules expression, and induced apoptosis.CONCLUSION:LPS enhances the phagocytosis of Kupffer cells in vitro, but in large amount, it inhibites the phagocytosis of Kupffer cells, which is probably related to LPS -induced microfilament, microtubules expression changes and apoptosis in Kupffer cells.     

宁夏中部干旱带果桑优良品种引进及筛选研究

对在2008年引进宁夏中部干旱带的5个桑果品种“红果二号”、“大十”、“8632”、“珍珠白”、“白玉王”进行栽培试验,从生长势、抗旱性、抗寒性、物候期、单株产量、产叶量、结果习性及果实的经济性状等方面综合比较,筛选适合在宁夏中部干旱带上种植的品种.结果表明:“红果2号”、“白玉王”2个品种的产量高、口感纯甜、生长旺盛、抗旱性及抗寒性都强,尤其抗抽干能力极强.     

Mechanism of mesenteric lymph duct ligation against the renal insufficiency in hemorrhagic shock rats

AIM: To observe the effect of mesenteric lymph duct ligation on free radical and inflammatory mediator in serious hemorrhagic shock rats at different periods, and explore the mechanism of intestinal lymphatic pathway on renal insufficiency. METHODS: 78 male Wistar rats were divided into the sham group, shock group, and ligation group. The model of serious hemorrhagic shock was established in shock group, ligation group, and mesenteric lymph was blocked by ligating mesenteric lymph duct in ligation group after resuscitating. All rats were executed and kidneys were taken out for making homogenate of 10 percent to determine levels of MDA, SOD, NO, NOS, tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and myeloperoxidase (MPO) at time points after shock 90 min, after transfusion and resuscitate 0 h, 1 h, 3 h, 6 h, 12 h and 24 h. The expression of inducible nitric oxide synthase (iNOS) mRNA in kindey was detected by RT-PCR. RESULTS: The contents of MDA, NO, NOS, TNF-α, IL-6, MPO and iNOS expressions in renal homogenate of shock group were increased after transfusion and resuscitation, and were higher at 6 h and 12 h, and was significantly higher than that in sham group. The acvitity of SOD was significantly lower than that in sham group (P<0.01, P<0.05). The contents of MDA, NO, NOS, TNF-α, IL-6, MPO and iNOS expression in renal homogenate of ligation group after transfusion and resuscitation 6 h, 12 h and 24 h were significantly lower than those in shock group at same points, and the SOD activity was higher (P<0.01, P<0.05). CONCLUSION: The results demonstrate that the ligation of mesenteric lymph duct can antagonise the development of renal failure in serious hemorrhagic shock rats, and its mechanism might relate to reduce the PMN sequestration, decrease the levels of TNF-α and IL-6, inhibit NO production and expression of iNOS mRNA, suppress the release of free radical and consumption of SOD.     

Quercetin regulates Fas expression and induces apoptosis in hepatocellular carcinoma HepG2 cells

AIM: To investigate the role of 1, 4, 5- trisphosphate inositol (IP3) and Fas gene expression in apoptosis of HepG2 cells induced by quercetin. METHODS: HepG2 cells were treated with quercetin at different concentrations (including 20, 40, 60, 80 μmol/ L) for 72 h and treated with 60 μmol/ L quercetin for 6 h, 12 h, 24 h, 48 h and 72 h. IP3, Fas mRNA, Fas protein and apoptosis rate were assayed by IP3 - ［3H］ Birtrak assay, RT-PCR, Western blotting and flow cytometry, respectively. RESULTS: When HepG2 cells were incubated with different concentrations of quercetin for 72 h, the IP3 content was lower than those in control. Fas mRNA expression, Fas protein expression and the apoptosis rate were higher than those in control. When HepG2 cells were incubated with quercetin for 6 h, 12 h, 24 h, 48 h, 72 h, the IP3 contents were lower than those in control incubated with 60 μmol/L quercetin for 12 h. Fas mRNA expression was higher than that in control incubated with 60 μmol/L quercetin for 12 h . Fas protein expression was higher than that in control. The apoptosis rate was significantly higher than that in control incubated with 60 μmol/L quercetin for 24 h (P<0.01). CONCLUSION: Quercetin induces apoptosis of HepG2 cells by reducing IP3 production and upregulating Fas gene expression.     

西瓜、甜瓜果实品质及调控研究进展

西瓜甜瓜深受消费者喜爱,但是近年来品质呈现下降的趋势.西瓜甜瓜的品质包括外观品质、营养品质和风味品质,而品质的形成又受品种、土壤环境、肥料供应、水分供应、栽培方式、生长调节剂以及采收与贮运等因素的影响,所以要针对以上因素,从改进育种手段和栽培技术2大方面来改良和提高品质.     

钾肥对黄冠梨品质的影响

对坐果后套袋前同一栽培管理的黄冠梨树进行施钾和不施钾肥处理.于采果期,对果实单果重、Vc、果胶质、含水量、比重、粗纤维、总酸、总糖、葡萄糖、果糖、蔗糖等指标进行测定.结果表明:施钾肥提高黄冠梨的单果重、维生素C、果胶质、比重、总酸、总糖、葡萄糖、果糖;降低含水量、粗纤维、蔗糖的含量.