大穗型玉米杂交种绵单8号及丰产性、稳产性分析

对2000～2001年四川省玉米区试(山区组)结果采用高稳系数法等分析表明，绵单8号(绵2826)属高产、稳产型玉米新杂交种，具有广泛的地区适应性。该品种含有热带亲本血缘，抗逆性突出，特别适合西南山地玉米生态条件下大面积推广种植。     

优质、高产、多抗玉米新品种辽单35选育报告

辽单 35 (试验代号辽 6 13)是辽宁省农科院作物所选育而成。 2 0 0 1年通过辽宁省品种审定委员会审定 ,确定为国内先进水平 ,命名推广。1　亲本来源及选育经过1.1　亲本来源辽单 35杂交种是以自选系辽 6 8为母本 ,外引系丹 340为父本组配而成。辽 6 8是 1996年通过引资项目引进的抗病毒自交系Ne× 30 7与自选系辽10 6 1杂交组成的群内单交种采用二环系选育方法 ,在广西、海南经 4代自交选育而成。该系具有株型清秀、抗病性强、子粒鲜亮、商品性好等特点。1.2　选育经过1997年冬在海南配制辽 6 8×丹 340组合。 1998年进行产量比较 ;1999年…     

高产优质玉米良种绵单1号生态特征特性研究

绵阳市农科所根据四川省生态特点，选育出了高产、优质、多抗、广适的玉米良种绵单1号，通过对亲本材料、制种技术、栽培措施的研究，形成了综单1号系列技术。     

玉米新品种鄂玉25的选育

鄂玉25是十堰市农科院玉米育种研究所以外引系HZ111为母本、以自选系美C为父本选育而成的杂交玉米新品种。该品种高产、优质、抗性好,2005年通过湖北省审定,2006年通过国家审定,适宜在湖北、湖南、贵州等武陵山区种植。     

玉米新杂交种丹玉20号

玉米新杂交种丹玉２０号该品种是丹东市农科所１９８７年冬以外引系７９２２为母本．自选系丹３４１为父本组配成的单交种．１９９４年通过辽宁省农作物品种审定委员会审定．１９９５年被评为国家级新产品．该品种幼苗长势整齐健壮，叶鞘紫色．叶色深绿．株高２９９．７厘...     

大穗型玉米品种南玉8号的高产栽培技术研究

南玉8号是南充市农科所1999年用外引系08-641与自选系南387组配而成的玉米杂交种。该品种中熟,在四川省境内直播生育期116d。2003～2004年在四川省区域试验中平均单产7875kg/hm2,比对照川单13增产6.9%。品质优良,粗蛋白质含量11.5%,粗脂肪含量4.4%,粗淀粉含量73.3%,赖氨酸含量0.33%,容重728g/L。适宜在西南地区海拔1000m以下的区域种植。     

高产多抗中熟玉米杂交种威玉308的选育

威玉308是威海市农业科学院将自选系U7A与自选系B124杂交组配选育而成的高产、优质、多抗型玉米杂交种。2009年3月通过山东省农作物品种审定委员会审定,审定编号为鲁农审2009014号。 1品种来源及选育经过     

玉米新品种锦单8号的选育及栽培技术

根据杂交育种亲本的选配原则 ,采用地理远缘和亲缘关系较远的双亲 ,组配的杂交组合 ,容易产生优良的后代。锦单 8号就是根据这一原则创造出来的新品种。该品种有 6大特点 :抗病、抗倒、抗虫、抗旱、耐涝、活秆成熟 ,而且丰产性好品质优。1　品种来源及选育经过锦单 8号 (原名锦试 8号 )是锦州农科院玉米研究所以自选系锦 719为母本 ,外引系丹 34 0为父本杂交育成的中晚熟优质玉米单交种。锦 719是由美国先锋种子公司ＣＭ190＿0 0 2杂交种连续多代自交选育而成 (属于Ｒｅｉｄ系统 ) ,丹 34 0是丹东农业科学院选育的 (属于旅大红骨系统 )。二…     

导入br-2温带矮生系的热带玉米种质利用研究

利用温带优良玉米自交系矮351中br-2 基因致矮特性,将其导入热带血缘种质,并对组建的温热群体进行品系内全同胞群体轮回选择和表型评价,研究隐性单基因br-2 矮源导入热带血缘玉米种质在改良异源种质资源中的效果。轮回选择结果显示,群体产量平均每轮增益6.4%;倒伏率平均每轮增益达5.6%。成功选育出两个优良自交系南381和南387,囊括了热带和温带种质的主要优良特性。组配的杂交种南玉8号、惠玉537和隆单9号通过四川省玉米品种审定并被大面积推广应用。     

玉米品种铁研28号的选育

铁研28号是铁岭市农科院2002年冬在海南以外引系K14为母本、自选系铁D9125为父本,经过基因重组、性状互补。选育而成的株型紧凑、综合农艺性状优良、抗逆性强、高产优质的中熟玉米单交种。母本K14是铁岭市农科院引进的玉米自交系．父本铁D9125是铁岭市农科院以丹340／C8902为基础材料新选育的玉米自交系。     

稻麦双晚对病虫草发生的影响及解决措施

随着早熟晚粳、中熟晚粳广泛种植,水稻轻型省力栽培方式旱直播的推广,病虫也发生了变化,成熟期显著推迟,下茬无法在适宜播期种植,影响粮食丰产稳产。提出筛选早熟当家品种、大力推广机插秧、加大粮食烘干设备的投入、合理施肥、精准植保等对策。     

加强闽台科技合作交流发展我省甘蔗业

概述了海峡两岸农业交流与合作的现状,提出了应该共同呼吁尽快实现两岸“三通”,开放农业生物技术图书期刊资料交流以及开放生物学科方面网络的思路,以便为农业交流与合作的顺畅开展打好基础,并寄希望能够就糖蔗、果蔗以及甘蔗笋等方面的研究与开发到台湾学习取经,开展学术交流或与台湾同行共同开展研究,为我省甘蔗业的发展作出贡献。     

Sorghum and millet phenols and antioxidants

Sorghum is a good source of phenolic compounds with a variety of genetically dependent types and levels including phenolic acids, flavonoids, and condensed tannins. Most sorghums do not contain condensed tannins, but all contain phenolic acids. Pigmented sorghums contain unique anthocyanins that could be potential food colorants. Some sorghums have a prominent pigmented testa that contains condensed tannins composed of flavan-3-ols with variable length. Flavan-3-ols of up to 8–10 units have been separated and quantitatively analyzed. These tannin sorghums are excellent antioxidants, which slow hydrolysis in foods, produce naturally dark-colored products and increase the dietary fiber levels of food products. Sorghums have high concentration of 3-deoxyanthocyanins (i.e. luteolinidin and apigenidin) that give stable pigments at high pH. Pigmented and tannin sorghum varieties have high antioxidant levels that are comparable to fruits and vegetables. Finger millet has tannins in some varieties that contain a red testa. There are limited data on the phenolic compounds in millets; only phenolic acids and flavones have been identified.     

Sorghum and millet phenols and antioxidants

Sorghum is a good source of phenolic compounds with a variety of genetically dependent types and levels including phenolic acids, flavonoids, and condensed tannins. Most sorghums do not contain condensed tannins, but all contain phenolic acids. Pigmented sorghums contain unique anthocyanins that could be potential food colorants. Some sorghums have a prominent pigmented testa that contains condensed tannins composed of flavan-3-ols with variable length. Flavan-3-ols of up to 8–10 units have been separated and quantitatively analyzed. These tannin sorghums are excellent antioxidants, which slow hydrolysis in foods, produce naturally dark-colored products and increase the dietary fiber levels of food products. Sorghums have high concentration of 3-deoxyanthocyanins (i.e. luteolinidin and apigenidin) that give stable pigments at high pH. Pigmented and tannin sorghum varieties have high antioxidant levels that are comparable to fruits and vegetables. Finger millet has tannins in some varieties that contain a red testa. There are limited data on the phenolic compounds in millets; only phenolic acids and flavones have been identified.     

大豆几种常见病虫草害的诊断与防治

1大豆花叶病毒病 大豆病毒病（Soybean Mosaic Virus,SMV）是世界性病害之一。我国东北地区已鉴定的有5种,即大豆花叶病、顶枯病、蚕豆萎蔫病、南方菜豆花叶病、花生条纹病毒。其中大豆花叶病在全国大豆主要产区都有发生,十分常见。     

大豆根潜蝇及根腐病的发生与防治

近年来，随着大豆播种面积的增长，受病虫危害日趋严重。特别是大豆根潜蝇（又名根明）与根腐病共同发生危害，严重影响大豆的生产。综合防治技术主要手段是三年以上轮作，适时播种及种衣剂拌种等措施。     

Tuber and starch quality of wild and cultivated potato species and cultivars

Summary Between 1993 and 1998 205 different potato cultivars and 1220 accessions/genotypes of wild and cultivated potato species from the IPK Genebank Gatersleben were evaluated. Parameters interesting for starch isolation and especially for the use of starch were determined. Altogether, there was a higher variability in wild potato species than in cultivated potatoes for all characteristics investigated: dry matter content, starch content, protein content, amylose content and mean particle diameter of starch granules.     

Yield and quality of winter and spring triticales for forage and grain

In field experiments conducted over 2 years in Mediterranean conditions, five winter and five spring triticales were evaluated for forage and grain production in the same cropping season. The experiments had two treatments, namely harvesting for grain only, and dual-purpose forage and grain production. In the latter treatment, forage was cut when the first node was detectable (Zadoks' stage 31), without removing the apical meristems. Grain was harvested when ripe (Zadoks' stage 92) in both cut and uncut plots.
Environmental conditions affected grain production and protein content more than forage yield and quality. Winter triticales yielded about 43% more forage than spring types, but after forage removal the spring types yielded about 36% more grain than winter triticales.
Reductions in grain yield after clipping were more pronounced in winter (32%) than in spring (19%) types. Forage crude protein content was significantly higher in the spring types studied (24.6%) than in the winter types (23.5%), the opposite being true for fibre content (20.7 and 21.6% respectively). Grain crude protein content did not differ between grain and dual-purpose treatments, but was higher in the spring triticales (12.8%) than in the winter types (11.9%). There was more variability for the measured traits within the winter triticales studied than within the spring types.     

种子加工、检验理论与技术现状及思考

种子加工及检验是种子向市场流通的关键，是商业化育种中赋予种子商品属性不可或缺的环节。种子加工、检验理论与技术的研究是完善种业产业链、实现规模化商业育种、夯实“育繁推一体化”种业科学的重要一环。中国的种业科学技术体系正在形成与完善之中，受制于行业发展水平，种子加工及检验理论与技术相对薄弱。本文回顾了种子加工及检验理论与技术研究发展历程，提出了完善中国种业科学发展的策略与建议。围绕种业发展的需要，在做好品种优质化繁育的基础上，分析种子加工及检验理论与技术的新方向和新需求，加强种业应用性研究，建立先进的种子质量检验体系，研制适合现代种业发展需求的种子加工设备，打造种子加工产业标准化生产体系，完善种业科学技术学科建设，促进种业产业持续健康发展。     

Effects of Organic and Chemical Fertilizers and Arbuscular Mycorrhizal Inoculation on Growth and Quality of Cucumber and Lettuce

Summary

Arbuscular mycorrhizae were inoculated into phosphorus-deficient soil fertilized with either organic or chemical fertilizer with cucumber (Cucumis sativus L.) as the first crop and lettuce (Lactu-ca sativa L.) as the second crop but without additional fertilization and AM inoculation. AM increased dry matter and fruit yield of cucumber significantly in the unfertilized, organic-fertilized and P-deficient plants compared with the fully chemical-fertilized plants. AM inoculation increased the available phosphorus in plant and soil by around 30% for all treatments except for those chemically-fertilized. The rate of AM infection did not differ significantly among the fertilization treatments, but the infection intensity was higher in unfertilized, organic-fertilized and phosphorus-deficient treatments than chemical-fertilized treatment. The residual effects of AM-inoculated to cucumber were evident for lettuce in all pre-treatments that were unfertilized and un-inoculated for the second cropping. Without P-fertilization, neither crop could grow optimally even when the soil was inoculated with AM, suggesting that AM could not serve as a substitute for phosphorus fertilizer. However, the other beneficial effects of AM on crop growth and yield could not be fulfilled with phosphorus fertilizer.