玉米新品种渝单50的选育及高产栽培技术

渝单50(渝1306)是重庆市农科院玉米所以玉米自交系渝2676为母本,渝213为父本杂交组配而成的杂交玉米新品种.2016年通过重庆市农作物品种审定委员会审定,适宜重庆市海拔700 m以上地区种植.     

玉米新品种陵单6号的选育及高产栽培技术

陵单6号是重庆市渝东南农业科学院用自育自交系12-89与自育自交系D71杂交组配而成的优质、广适杂交玉米新品种,因其产量高、品质好、抗性强等优点,2019年通过重庆市农作物品种审定委员会审定。     

高产优质大穗型杂交玉米新品种顶酷007

顶酷007是重庆市农业科学院与重庆艾禾农业科技有限公司以渝8954为母本、渝1069为父本杂交组配而成的大穗型杂交玉米新品种,具有品质优、抗逆性好、产量高、适应性广、持绿期长等突出优点。2017年通过重庆市农作物品种审定委员会审定,适宜重庆市海拔700m以下地区种植。介绍了该品种的选育过程、主要特征特性和栽培技术要点。     

优质杂交稻渝优一号及中稻再生稻高产栽培技术

渝优一号系重庆市作物研究所用渝5A与恢复系渝恢933配组而成的三系中籼中迟熟优质高产杂交稻新组合,2004年通过重庆市农作物品种审定委员会审定(审定编号:渝审稻2005005号),目前在重庆或川东南地区生产面积正日益扩大.     

植物新品种杂交制种风险应由谁承担的案例分析

<正>1案例渝单9号是经重庆市审定通过的玉米杂交种,其以自选系268-3为母本,外引系162-3为父本杂交组配而成,适于重庆市平坝、浅丘区推广种植。渝单11号是经重庆市和农业部分别审定通过的玉米杂交种,其以自选系549为母本,外引系51为父本杂交组配而成,适于重     

玉米新品种金泰99高产栽培技术

金泰99是山西省农业科学院谷子研究所和重庆金泰种业有限公司合作攻关选育成的玉米新品种,连续几年在山西省和重庆市进行的各类试验示范及重庆市的区域性试验中,均表现高产、稳产、抗病、抗倒和植株矮健、丰产潜力大、综合抗性好等优点。2009年通过重庆市农作物品种审定委员会审定,审定编号为：渝审玉2009008。     

小麦新品种渝麦14号的选育及栽培技术

渝麦14号(原名L-28)是四川农业大学农学院和重庆市农业科学院共同选育的小麦新品种。2011年5月通过重庆市农作物品种审定委员会审定(编号:渝审麦2011001)。该品种产量高,品质好,抗倒伏能力强,农艺性状优良,适应性广,适宜重庆市及周边相似生态区种植。因地制宜,适时播种,合理密植,平衡施肥,加强田间管理,及时进行病害虫草的防治,是确保渝麦14号高产优质的关键栽培措施。     

杂交玉米新品种禾睦玉102的选育及配套技术

禾睦玉102是以自选系QS 001为母本,外引系渝561为父本组配而成的杂交玉米新品种,于2017年7月通过重庆市农作物品种审定委员会审定。重庆市2年区试产量变幅396.0~600.0kg/667m~2,平均产量525.7kg/667m~2,比对照渝单8号增产7.0%,增产点率93.8%。生产试验平均产量549.1kg/667m~2,比对照渝单8号增产5.5%,增产点率100%,表现较强的丰产性、稳产性和广适性。适宜重庆平丘及相似生态区域中上等肥力土壤作春玉米种植。     

小麦新品种渝麦12号的选育及其丰产栽培技术

渝麦12号(原代号渝03062)是重庆市农业科学院特色作物研究所选育的高产抗病小麦新品种。2010年2月通过重庆市农作物品种审定委员会审定(编号:渝审麦2010001)。该品种具有产量高、品质好、农艺性状优良、抗病性强、抗倒力强、适应性广等特点。适宜重庆市及相似生态区平坝和丘陵肥力水平中上地区的旱地或稻茬麦田种植。适期播种、合理密植、平衡施肥、及时进行病虫草害综合防治等技术,是渝麦12号获得优质和高产的关键栽培措施。     

高产稳产优质糯稻新组合辐糯优396

辐糯优396系四川达丰种业科技有限责任公司、成都南方杂交水稻研究所、重庆市铜梁作物良种研究所用辐糯2A与NR396配组育成的三系杂交糯稻新组合.2008年1月通过重庆市农作物品种审定委员会审定,审定编号:渝审稻2008014.该组合丰产稳产性好,生育期适中,穗大粒多,抗逆性较好,糯性和稻米外观品质好.     

植物新品种保护与品种审定的意义和异同

随着知识产权愈来愈受到社会各界的关注，植物新品种保护工作也显得尤为重要。该文着重介绍了植物新品种保护的发展概况、意义及其与品种审定的异同，使读者对植物新品种保护工作有所了解。     

大白菜施肥技巧与主要病虫害防治

1施肥技巧 大白菜施肥原则是：整地重施有机肥，苗后分次巧追肥。追肥要掌握“少量多次、前少后多、分期供给”。肥后及时浇水，以达到肥水均匀，充分发挥肥效。     

果蔬采后存在问题及贮藏保鲜技术发展

随着生活水平的提高,果蔬产品成为人们摄取营养元素的重要食品之一。分析了我国果蔬采后存在的问题,并对低温及气调保鲜、化学保鲜剂、涂膜保鲜技术及超声保鲜技术等贮藏保鲜技术研究进行了综述,指出我国果蔬贮藏保鲜技术持续、稳定、健康的发展要倚重于科技创新。     

Dry matter and nitrogen accumulation and residues of oil and protein crops

Oil and protein crops are of growing importance in cropping systems. This study was carried out to compare oil crops of linseed, rapeseed, sunflower and protein crops of faba bean and white lupin for grain production, residual plant dry matter and nitrogen. Two field experiments with either oil or protein crops were conducted in 1993 and 1994, respectively. Total dry matter production, grain yield, residues, N concentrations and mineral N in the soil were measured. Dry matter production and distribution as well as N uptake and residues varied greatly among species and between years. In 1993, oil crops gave up to 3 t ha⁻¹ grain and 16 t ha⁻¹ residues with sunflower, while in 1994 up to 5 and 11 t ha⁻¹, respectively, were recorded with winter rape. Protein crops showed an opposite reaction in years. Nitrogen uptake and residual N amounts were correlated with dry matter production. Plant residues of oil crops contained 20–140 kg N ha⁻¹; those of protein crops up to 80 kg N ha⁻¹. Despite the variation of residual plant N the variability of mineral N in the soil at harvest was hardly influenced by crops and amounted to only 20–50 kg NO⁻₃-N ha⁻¹.     

我国蔬菜产业和科学技术的发展与展望

1　我国蔬菜产业的发展现状蔬菜是人们日常生活中不可缺少的副食品,也是我国目前种植业中最具活力的经济作物。改革开放以来,随着市场经济的发展,农产品产销体制的不断改革和完善,特别是1988年实施“菜篮子工程”以来,蔬菜产业得到了蓬勃发展。1.1　播种面积1987~1999年,全国蔬菜播种面积由533.3万hm²,发展到1333.3万hm²,增长139.5%。1.2　总产量1987~1999年,全国蔬菜总产量由1.55亿t增加到4.05亿t,增长161.3%,使年人均鲜菜占有量达到330.7kg(世界各国人均105kg……     

向日葵抗盐碱生理生化机制与生长发育特性分析

以Y05-222A和Y06-136R杂交得到的135株F₂群体为研究材料,测定过氧化物酶（POD）、超氧化物歧化酶（SOD）、脯氨酸（Pro）、过氧化氢酶（CAT）、可溶性蛋白和丙二醛（MDA）等6个生理指标,并进行方差分析、相关性分析和通径分析,对F₂群体进行偏度及峰度分析。结果显示,以上6个生理指标在F₂群体中P>0.05,分布频率符合正态分布,同时存在双向超亲分离现象;相关性分析和通径分析显示,这些指标与抗盐碱系数均呈极显著相关（正相关或负相关）,且相关系数与总间接通径系数方向一致。POD活性的直接通径系数为0.5003,可见POD直接影响抗盐碱性;CAT活性和Pro含量的直接通径系数分别为-0.1317和-0.0384,间接影响抗盐碱性;SOD活性、MDA及可溶性蛋白含量直接或间接影响抗盐碱性。POD、SOD、Pro、CAT、可溶性蛋白和MDA各生理指标的抗盐碱作用表现为POD>CAT>Pro>可溶性蛋白>MDA>SOD。叶片数、株高、茎粗和盘径与抗盐碱系数呈极显著正相关,其相关性表现为叶片数>盘径>株高>茎粗。以上结果可为研究油用向日葵抗盐碱性提供一定的理论基础。     

果蔬食品的褐变与控制

结合生产实际,对果蔬食品产生褐变的机理及其控制途径进行探讨。通过遗传学途径,培育果蔬新品种,使之不含易氧化变色物质,增强其天然抗褐变性,是控制果蔬褐变的根本途径。     

On Fengshui and Rockery and Water Layout

Definition of Fengshui and the theories of selecting mountain and water environment in Fengshui were elaborated. Theories about mountain-water relationship were expounded from the perspective of piling of rockeries and layout of water, a residential area in Hefei City, Beijing Olympics Park, Hangzhou Prince Bay Park, mineral pit of Shanghai Chenshan Botanic Garden, Beijing Beihai Park, Shanghai Changfeng Park were taken for example to demonstrate the influence of traditional rockery and mountain layout in Fengshui on modern landscape design.     

Approaches and Applications of Chemomics and Chemoinformatics

Some novel concepts of chemomics/molomics are proposed including hydrocarbomics, alcophenomics, carboxomics, pepitomics, metabonomics, etc. like genomics, protomics and glycomics in bioomics. Some examples are given to demonstrate the chemomics and/or molomics methodology and technology based chemoinformatics and bioinformatics and their wide applications in Chemistry and Biology.     

Acidity and sweetness in apple and pear

Summary Sweetness and acidity in apple and pear inherit independently and can be organoleptically evaluated separately, but less accurately in pear than in apple. For breeding purposes an analysis of fruits for acidity and sweetness with pH indicator paper and a hand refractometer is to be prefered to the organoleptic method.In apple, the acidity-decreasing with time-of the unripe fruit was already strongly indicative of that of the eating-ripe fruit; sugar-increasing with time-not before the fruit was picking ripe. Sugar content in apple and pear, and the pH in pear, appeared to be normally distributed; the pH in apple showed a segregation into an acid and a low-acid group, which occurred in both the unripe and ripe stage. The segregation ratio between these groups was found to be highly variable. On the whole, the mean acidity and sugar content of apple and pear progenies is significantly determined by that of the parents. Most of the observations made did not support the theory that low acidity in apple is determined by one recessive gene. The relationship between the pH of leaf juice and fruit juice in apple may offer a possibility for pre-selection.