大通鸡腿葱无公害生产技术

无公害农产品生产技术,已被广泛应用于农业生产的各个领域,立足于当地实际,对大通县、西宁市乃至青海省的优势蔬菜品种--大通鸡腿葱无公害生产技术从无公害生物农药的选用、生物肥料的筛选、栽培密度等方面进行了研究,并对产地环境进行了检测和评价,为生产无公害大通鸡腿葱产品及产业开发奠定了基础。     

超干贮藏对不同成熟度鸡腿葱种子发芽活力的影响

以大通鸡腿葱为试材,分别于花后45、50、55、60、65d采种,研究检测了不同采收期大通鸡腿葱种子的形态特征和内含物含量;研究了分级干燥处理并常温贮存1.5a后,鸡腿葱种子的发芽活力进行了发芽试验。结果表明:随着鸡腿葱成熟度的提高,其种子饱满度增加;种子的含水量和可溶性糖含量随鸡腿葱成熟度提高有下降趋势;粗脂肪和可溶性蛋白质有升高趋势;不同成熟度鸡腿葱种子超干贮藏后发芽活力存在差异,种子在2.5%～3.5%含水量条件下的活力显著提高,花后45d采收的种子通过超干贮藏后可以大幅度提高种子活力,花后60d采收的种子更适宜超干贮藏。     

大通鸡腿葱无公害栽培技术

大通鸡腿葱是青海省农林科学院园艺所和大通县蔬菜站以大通县当地的葱品种为材料,经过系统选育出的优良地方葱品种,具有丰产、品质优良、抗逆性强、耐贮藏等优点.     

优良地方葱品种大通鸡腿葱

大通鸡腿葱是青海省农林科学院园艺所和大通县蔬菜站于1994-2003年以大通县当地葱为材料,经过系统选育出的优良地方葱品种,具有丰产、品质优良、抗逆性强、耐贮藏等优点.2004年2月,经青海省农作物审定委员会审定并命名.该品种现为大通县的主栽大葱品种,深受菜农和消费者的欢迎.     

莱芜地区鸡腿葱种植关键技术

鸡腿葱是山东省莱芜市的特产,全国农产品地理标志。因其感官特殊、品质上乘、风味独持,而深受消费者的青睐。随着市场需求量的增大,鸡腿葱高产稳产的种植技术需求迫切。文章总结了莱芜鸡腿葱种植的关键技术,包括育苗、栽培、病虫害防治以及收获贮藏等,以促进鸡腿葱的高效种植与推广。     

莱葱一号特征特性及无公害栽培技术研究

莱葱一号是山东省莱芜市农科院科研人员用"莱芜鸡腿葱"为基础材料,利用生物技术培育出的新品种,莱葱一号具有莱芜鸡腿葱的典型特征,葱香浓郁,品质优良,产量较莱芜鸡腿葱增加100%。不仅较好地保持了莱芜鸡腿葱的独特风味和特征,而且产量大幅提升,是一个珍贵的葱种。     

莱芜鸡腿葱

正莱芜鸡腿葱属山东土特产品,因其葱白粗大,状如鸡腿而得名,是我国众多大葱品种中独具特色的优质地方品种。莱芜鸡腿葱种植历史悠久,嘉靖莱芜县志、莱芜县乡土志就有该葱的记载。莱芜鸡腿葱葱白粗壮,上细下粗,呈鸡腿状。植株矮小、粗壮,株高60～70 cm,开展度20 cm左右。功能叶5片,叶绿色管状、肥厚、粗短,略弯,叶尖钝,排列紧密,叶面蜡质粉中等。葱白部分较短,长26～30 cm,基部显著膨大,     

《中国蔬菜》2013·12 “品种选育”彩版介绍

京秋4 号大白菜、30 快菜速生大白菜、黄花王豇豆、新葱5 号鸡腿葱品种介绍。     

隆尧鸡腿大葱

一、栽培历史及现状隆尧鸡腿大葱因葱白底部膨大形似鸡腿而得名,是河北省著名的特产蔬菜之一,1958年华北农业展览会上曾受到好评。据史书记载:战国时期的名医扁鹊,当时经常在隆尧、内丘一带行医,以葱调治多种疾病。“卒中恶死、或先病、或平居寝卧,奄忽而死,皆是中毒,急取葱     

莱芜鸡腿葱高产栽培技术

莱芜鸡腿葱是山东省名优地方品种,葱白质地鲜嫩,辛辣味浓,营养丰富,生食甜脆香辣,尤其适宜炒食.用它烹调菜肴,主佐均宜,素有"如言山东菜,菜菜不离葱"之说.     

Effect of salinity and water table on growth and tolerance of plum and peach

The effects of combinations of salinity (no salt, 2000 p.p.m. or 4000 p.p.m. of CaCl₂ and NaCl, 1:1) and water table (30 cm, 60 cm or 90 cm from the soil surface), on the vegetative growth and tolerance of ‘Golden Japanese’ plum and ‘Mit Ghamre’ and ‘Balady’ peaches were studied. The plants were grown in lysimeters. The growth of the trunk, total shoot length, the increase in shoot length per cm and the fresh weight of top, root and total plant were reduced with increasing salinity of the irrigation water. The effect was accentuated when the plants were maintained at high water table level. The salinity treatments resulted in the death of 43%, 73% and 76% of the plants in the plum, and the ‘Mit Ghamre’ and ‘Balady’ peaches, respectively, indicating that the plum is more tolerant to salinity than the peach. The plants of the salinity treatments showed various symptoms of salt injury, such as leaf burn, defoliation, shoot die-back and finally death. In the peaches, salt injury started to occur in the first growing-season, whereas the salt injury appeared in the plum in the second growing-season. The symptoms were more pronounced in the 4000 p.p.m. treatment than in the 2000 p.p.m. treatment and were more pronounced at the high water table level. The salinity level was the predominant factor and the effect of the water table on the vegetative growth diminished with increase in the salinity level of the irrigation water.     

洞庭1号无籽西瓜套种棉花高产高效模式的研究与应用

根据西瓜、棉花两者生长发育特点进行套种试验,研究其高产高效栽培模式。试验示范结果表明,以西瓜行株距4.5m×0.65m,棉花行株距1.5m×0.45m的种植密度,西瓜与棉花之间互颉作用最小,西瓜和棉花的产量和产值在3个套种模式中位居第1,在5个处理中经济效益最高。     

Primary culture and identification of mouse PASMCs and effects of hypoxia on proliferation and apoptosis of PASMCs

AIM：To establish a fast, accurate and economical technique for culturing mouse pulmonary arteriolar smooth muscle cells (PASMCs), and to explore the effects of hypoxia on the proliferation and apoptosis of the PASMCs. METHODS：In sterile condition, the pulmonary artery was isolated from the male BALB/c mice by digesting with collagenase I, and the cells were cultured in fetal bovine serum-coated flask. Centrifugal procedure was not used during the cell passage. The cell morphology was observed under an inverted phase-contrast microscope. α-Smooth muscle actin was identified by immunocytochemistry and immunofluorescence. The effects of hypoxia on the proliferation and apoptosis of the PASMCs were detected by CCK-8 assay and TUNEL assay. RESULTS：PASMCs were identified by the methods of immunocytochemistry, immunofluorescence staining and observation of morphology. Unlike the rat PASMCs with typical subcultured peak-vally pattern, the mouse PASMCs showed a lot different without a peak-vally pattern. The cells could be subcultured after 5 d to 7 d and there was 3 to 5 generations depending on the activity of the cells. CCK-8 assay demonstrated that the A values of PASMCs exposed to hypoxia increased after 24 h (P＜0.05) as compared with normoxia. TUNEL result showed that the apoptotic index of the PASMCs in hypoxia decreased after 24 h (P<0.05). CONCLUSION：This technique for obtaining cultured mouse PASMCs is simple, fast, accurate and economical. The digestion time is easy to control. Hypoxia promotes the proliferation and inhibits the apoptosis of PASMCs.     

世界及中国鳄梨产销概况与展望

依据联合国粮食及农业组织(FAO)数据库、联合国商品贸易统计数据库(UN Comtrade)中的数据,围绕鳄梨种植面积、产量、迚出口市场、主产国生产情况、主要迚出口国贸易情况等斱面,对世界及中国鳄梨的生产与贸易迚行回顾、分析与展望,幵在此基础上,对中国鳄梨产业的发展提出建议。     

Storability of onion seeds and effects of packaging and storage conditions on viability and vigour

Fresh onion seeds desiccated to 6.0% seed moisture content (SMC) were stored in various packaging materials under different storage conditions. Seeds packed in aluminum-laminated pouches beside those stored with silica gel at 25 °C maintained satisfactory germinability and vigour after 12 months. Desiccated seeds stored in moisture impervious containers produced more vigourous seedlings. Germination potential of onion seeds increased with reduced SMC besides storage in moisture impervious packets along with desiccants as physiological and biochemical attributes are regulated. Seed viability and vigour decreased with accelerated ageing due to increased lipid peroxidation, decreased activities of several free radical and peroxide scavenging enzymes. Electrical conductance of seed leachates also increased with ageing. Thus, adoption of appropriate storage temperature and moisture control techniques would significantly affect onion seed quality, which was due to minimum accumulation of free peroxide radicals and enhanced activity of free radical scavenging enzymes.     

小檗碱和壳聚糖抗蔬菜病原真菌活性测定及复合膜制备

研究了小檗碱和壳聚糖对几种常见蔬菜病原真菌的抑制活性,以及以小檗碱和壳聚糖为主料制备复合膜的方法,并测定了该膜的药物释放效果。试验表明:低浓度(0.234 mg/mL)小檗碱即可抑制辣椒炭疽病菌(Vermicularia capsici)等5种蔬菜病原真菌的生长。20 mg/mL浓度壳聚糖对番茄灰霉病菌(Botrytis cinerea)的抑制率高达65%,而对其余4种果蔬病原真菌也有一定的抑制作用。为了集成这2种天然化合物的优点,制备了小檗碱-壳聚糖复合膜,该膜具有缓释功能,在模拟外部环境(磷酸缓冲液,pH 6.8)条件下,20 d小檗碱累计释放率接近25%,提示其在果蔬贮藏抗菌中的应用价值。     

西瓜与粮油菜套种栽培试验

近年来,我省西瓜发展速度较快,到2004年全省西瓜栽培面积已达3万hm^2.由于我省耕地面积有限,大幅度扩大西瓜单种面积,不仅造成我省西瓜与粮油菜争地的矛盾,而且土地也未能得到充分有效的利用.为了解决这一生产中存在的实际问题,我们从2002年开始,进行了西瓜与粮油菜套种的栽培试验.历经4年的试验、示范,取得了显著的经济效益和社会效益.现将试验结果报告如下.     

热处理对果蔬采后品质及病虫害的影响

采后热处理是近年来快速发展的果蔬采后处理技术,广泛应用于改善果蔬贮藏期间的品质、增强抗逆性等 方面。从果蔬贮藏期间的生理生化、采后品质及防治病虫害等方面阐述了热处理的机理,讨论了热处理对果蔬衰老 方面的生理特征如色泽、风味、硬度(软化)、失重、呼吸、乙烯释放、酶活性等变化及与抗逆性有关的诱导蛋白质合成 及基因表达的影响,较全面阐述了热处理防治果蔬贮藏期间病虫害的机理如直接作用于病菌、害虫与提高果蔬的抗 病虫性等。     

陕西冬枣黑斑病和炭疽病病原菌的分离鉴定及特征比较

以大荔县冬枣种植区采集的发病枣果为试材,采用常规组织分离法进行病原菌的分离纯化,通过柯赫氏证病法则、形态学观察及分子生物学分析,研究鉴定了冬枣黑斑病和炭疽病的病原菌种类,并采用田间调查法对2种病害为害特征进行比较分析,以期为田间有效区分冬枣黑斑病和炭疽病为害症状,并快速判断其病原类型,及进一步深入开展精准防控提供参考和指导.结果表明:陕西大荔冬枣黑斑病的病原菌为细极链格孢(Alternaria tenuissima),炭疽病的病原菌为胶孢炭疽菌(Colletotrichum gloeosporioides).2种病害均主要为害枣果实,在枣果果腰或果肩上形成黑褐色病斑,可能同时存在且症状相近极易混淆,但在病斑表面、皮下及久置表型3个方面存在明显区别.     

钾肥在小白菜和萝卜上的施用效果

采用盆栽试验方法研究了施用钾肥对小白菜、萝卜生长发育、产量、品质及钾素含量的影响。结果表明 ,施用钾肥对小白菜和水萝卜的株高、叶片数无显著的影响 ,但可提高水萝卜块根的产量 ,提高幅度为 31.0 4 %～ 97.93%。施用钾肥可提高小白菜和萝卜的蛋白质和VC含量 ,降低硝酸盐含量 ,增加植株的钾素含量