冀香糯1号的选育与栽培技术要点

冀香糯1号是以新香糯为母本,以冀糯1号为父本进行杂交,经过多年系统选育而成的中早熟粳香糯稻品种,2009年通过河北省农作物品种审定委员会审定。该品种全生育期169 d左右,粗蛋白含量9.83%,糙米率82.5%,精米率74.3%,整精米率38.0%,胶稠度99 mm,碱消值6.0级。河北省2年区试平均产量580.41 kg/667 m2,较对照垦育20增产1.69%。适于在河北省长城以南唐山、秦皇岛稻区作一季稻种植。     

特种稻新品种广陵香糯选育中的一些体会

广陵香糯是本院最近选育的中熟粳型香糯新品种。由于本品种优良的品质，良好的抗性，加上比较突出的产量，使它在参加区域试验的同时便被生产单位广为接受，并得到迅速的推广。目前，广陵香糯已通过江苏省农作物品种审定委员会审定，成为水稻生产上的主要糯稻推广品种之一。     

冀香糯5号的选育与栽培技术要点

冀香糯5号是以冀香糯1号为母本、金穗1号为父本进行杂交,经过多年系统选育而成的粳型中熟香糯稻品种。2016年通过河北省农作物品种审定委员会审定。该品种生育期适中、产量高、品质佳,适于在河北省长城以南的唐山、秦皇岛等地作一季稻种植。     

糯两优561在福建省试种表现及栽培制种技术

糯两优561是湖北中香农业科技股份有限公司用自育的香型糯稻不育系糯56S与香型糯稻恢复系香糯1号配组而成的全香型两系优质杂交中籼糯稻新品种。2015年宁德市农科所从湖北中香农业科技股份有限公司引进试验试种,表现群体整齐,抗倒、抗衰性较强,适应性,稳产性和丰产性较好,熟期转色好,稻米品质优,具有香味等特点。介绍了糯两优561品种的特征特性,并提出了栽培和制种技术要点。     

利用QTL-Seq定位粳稻整精米率QTL

【目的】稻米整精米率是加工品质的重要评价指标之一,其QTL定位将为提升稻米品质提供理论依据。【方法】通过两个粒型相近、整精米率差异极大的粳稻材料构建的F₂分离群体为材料,利用QTL-Seq方法对分离群体中的高整精米率单株和低整精米率单株进行混池重测序以定位粳稻整精米率QTL位点。【结果】经过QTL-Seq分析发现在第8和第12染色体区间存在控制粳稻整精米率的QTL位点。进一步通过200个F₂分离群体单株对第8和12染色体进行InDel分子标记QTL作图,发现粳稻中控制整精米率的QTL位点：qHRR8.1、qHRR8.2和qHRR12。其中,位于第8染色体21.8-23.2 Mb的qHRR8.1表型贡献率达到10.80%,其他两个QTL的贡献率较小。qHRR8.2位于第8染色体24.2-25.2 Mb,表型贡献率为3.26%。位于第12染色体的2.9-4.5 Mb的qHRR12表型贡献率为4.06%。【结论】本研究定位了1个控制粳稻整精米率的主效QTL位点qHRR8.1,对克隆粳稻整精米率控制基因以及在品质育种中提高粳稻整精米率有一定的参考价值。     

稻谷小麦玉米新标准

国家质量技术监督局、国家粮食储备局、农业部对稻谷、小麦、玉米等８项国家标准的修订，主要考虑目前我国粮食质量状况和拉开质量差价、季节差价、不再划分地区，种植季节等差异情况，用统一的指标来衡量。 新增内容： ──质量要求增加“整精米率”和“谷外糙米”指标。 主要修订内容： ──将原分类修改为五类，即“早籼稻谷、晚籼稻谷、粳稻谷、粳糯稻谷、籼糯稻谷”。 ──粳稻谷、粳糯稻谷出糙米率统一为一个标准，中等质量不低于７７％，不再划分一、二、三类地区。 ──将“晚籼稻谷”、“籼糯稻谷”水分修订为不超过１３．５％，与…     

糯稻新品种贵农糯1号

贵农糯1号系贵州大学农学院水稻研究所于2001年用香型糯稻品种农南香糯与兴糯925进行有性杂交．采用系谱法。2001—2003年在贵阳与三亚之间进行高产多抗目标性状的单株选择：2004年春定型育成．编号为2003南繁-528：2004年参加本所品系比较试验：2005—2006年参加贵州省糯稻新品种（系）区域试验。     

优质常规糯稻新品种板仓香糯的选育与应用

板仓香糯是湖南省水稻研究所与湖南五彩农业科技发展有限公司共同选育的中熟常规糯稻新品种,具有糯性强,丰产性和稳产性较好,耐低温,抗倒伏等特点。2016年6月通过湖南省农作物品种审定委员会审定。     

水稻糯性三系不育系信3122Awx的选育及应用

信3122Awx是信阳市农业科学院育成的水稻糯性不育系。该不育系整精米率高、糯性好，异交习性好，所组配组合表现出糯性优、丰产稳产性好、综合抗逆性强等特点，于2015年通过河南省技术鉴定。所配杂交糯稻组合信优糯5533和信优糯721已先后通过河南省农作物品种审定委员会审定。     

京香636的选育与应用

为丰富华北地区的大米品种类型 ,创建新的优质米品种 ,１９９１年以来我们开展了优质香粳品种的选育。现在已育成系列香粳品种 ,与传统香粳品种相比 ,丰产性和整精米率有明显提高 ,垩白率降至２０%以下 ,米粒外观显著改良 ,其中京香６３６在北京市麦茬稻老秧组区试 (１９９９～２０００年 )中产量超过对照 ,生产试种反映良好 ,于２００１年８月通过北京市作物品种审定。一、选育过程１９９３年测交组合９１８９７ -２Ａ(香糯５Ａ)／Ｔ５８５０-１(香糯 )开花期花药不散粉 ,表现不育 ,随即用恢复系ｈ９４１８配组 ,目标是选育香粳品种或香粳…     

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。     

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.     

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。     

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.     

Present Situation and Consideration of Seed Processing and Testing Theory and Technology

Seed processing and testing hold the key to the market circulation of seeds, and are an indispensable link in commercial breeding to endow seeds with commodity attributes. The research of seed processing and testing theory and technology is an important link in improving the seed industry chain, realizing large-scale commercial breeding and consolidating the seed industry science of ‘integration of breeding, propagation and promotion’. The scientific and technological system of seed industry in China is being formed and perfected, which is subject to the development level of the industry. The theory and technology of seed processing and testing are relatively weak. We reviewed the development of seed processing and testing theory and technology, and put forward strategies and suggestions to improve the sound development of China’s seed industry. In order to meet the needs of seed industry development and on the basis of high quality breeding of varieties, the new directions and demands of seed processing and testing theory and technology were analyzed. We will work to strengthen the applied research of seed industry, establish advanced seed quality inspection system, improve seed processing equipment suitable for the development needs of modern seed industry, establish standardized production system of seed processing industry, develop the scientific and technological disciplines of seed industry, and promote the sustainable and healthy development of seed industry.     

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。     

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。     

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。     

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。