共查询到20条相似文献，搜索用时 78 毫秒
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Yaduru Shasidhar Murali T.Variath Manish K.Vishwakarma Surendra S.Manohar Sunil S.Gangurde Manda Sriswathi Hari Kishan Sudini Keshavji L.Dobariya Sandip K.Bera Thankappan Radhakrishnan Manish K.Pandey Pasupuleti Janila Rajeev K.Varshney 《作物学报(英文版)》2020,(1):1-15
Foliar fungal diseases(rust and late leaf spot)incur large yield losses,in addition to the deterioration of fodder quality in groundnut worldwide.High oleic acid has emerged as a key market trait in groundnut,as it increases the shelf life of the produce/products in addition to providing health benefits to consumers.Marker-assisted backcrossing(MABC)is the most successful approach to introgressing or pyramiding one or more traits using traitlinked markers.We used MABC to improve three popular Indian cultivars(GJG 9,GG 20,and GJGHPS 1)for foliar disease resistance(FDR)and high oleic acid content.A total of 22 BC3F4 and 30 BC2F4 introgression lines(ILs)for FDR and 46 BC3F4 and 41 BC2F4 ILs for high oleic acid were developed.Recurrent parent genome analysis using the 58 K Axiom_Arachis array identified several lines showing upto 94%of genome recovery among second and third backcross progenies.Phenotyping of these ILs revealed FDR scores comparable to the resistant parent,GPBD 4,and ILs with high(~80%)oleic acid in addition to high genome recovery.These ILs provide further opportunities for pyramiding FDR and high oleic acid in all three genetic backgrounds as well as for conducting multi-location yield trials for further evaluation and release for cultivation in target regions of India. 相似文献
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Yaping Xie Bin Wang Limin Wang Junyi Niu Wei Zhao Bin Yan Li Zhao Zhao Dang Wenjuan Li Yanni Qi Jianping Zhang 《中国油料作物学报(英文)》2019,(3):152-165
Crop yield is primarily seed-filling-limited in production system under field conditions.This study was aimed to determine whether seed filling traits of oil flax(Linum usitatissimum L.)could be controlled by phosphorus(P),nitrogen(N),and phosphorus and nitrogen(NP)supply.Effects on seed filling traits were investigated in 2 years including capsule diameter,capsule height,capsule dry matter(DM),seed DM per capsule,pericarp DM per capsule,protein content and oil content.DM translocation from pericarps to seed,translocation efficiency,and contribution of photoassimilates during seed filling period were also detected.In a randomized complete block design,cultivar'Longyaza 1'was grown under P(33 kg P/ha),N(75 kg N/ha),and NP(33 kg P/ha and 75 kg N/ha)along with a zerofertilizer(CK)treatment in 2013 and 2014.Results suggested that DM translocation efficiency and contribution efficiency increased to different extent due to P,N or NP application.At 42 DAA(days after anthesis),seed DM per capsule reached the greatest,while protein content and pericarp DM obtained the least level.However,the highest oil content was detected at 35 DAA.A significant positive linear relationship was observed between seed DM,capsule DM and DM translocation in both years.Protein content showed inconsistent relation with oil content.The results indicated that appropriate N and P management could be an effective approach to increase oil flax production. 相似文献
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Rice false smut disease, which is caused by the fungus Ustilaginoidea virens, is currently one of the most devastating rice fungal diseases in the world. Rice false smut disease not only causes severe yield loss and grain quality reduction, but also threatens food safety due to its production of mycotoxins. In this review, the most recent progresses regarding the life cycle, infection processes, genome and genetic diversity, pathogenic gene and disease resistance in rice were summarized in order to provide theoretical basis for the control of U. virens. We also proposed some future directions and key questions that need to be addressed for a better understanding of the molecular mechanism that leads to rice false smut disease and the prospects for sustainable control of rice false smut. 相似文献
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本刊讯11月26日,第十届广州国际茶文化节、2009中国(广州)国际茶业博览会在广州琶洲中洲商务展示中心隆重举行开幕式。原中共中央政治局委员、全国政协副主席杨汝岱,中华全国供销合作总 相似文献
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五月的安溪大地,蛰伏着一股巨大力量,来自全国各地的茶商云集,表面被春雨挡住步伐,但一坐下来就是满腹的茶经;我有幸成为其中一员,八年从事茶行业,让我越来越淡定,我想这是茶力量的觉醒,因而我若有所思…… 相似文献
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最近,有媒体报道2010年西湖龙井新茶价格将出现上涨,每斤将有200到1000元不等的涨幅,不少人看到新闻后惊呼这西湖龙井喝不起了。为此,本刊电话联系采访了浙江省茶叶产业协会秘书长胡迪钧,他对这样的报道表示吃惊,他说近几年西湖龙井新茶上市之初,除了个别企业 相似文献
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2008年11月,是华祥苑茗茶丰收的一个月。在第四届中国茶业经济年会上,华祥苑不但继续蝉联百强,董事长肖文华行业"投名状"被评选为2008中国茶叶行业年度经济人物:在产品上,华祥苑 相似文献
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JIN Le-zhong(Laian Agricultural Technology Extension Center,Laian,Anhui 239200) 相似文献
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对来安县引进的小麦起垄降渍机械化种植技术模式的推广现状及成效进行了总结,为南方稻茬麦区小麦优质高产栽培探索新的技术途径. 相似文献
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江淮流域杂草稻叶绿体DNA的籼粳分化 总被引：4，自引：2，他引：2
为了探明江淮流域杂草稻的细胞质来源,根据水稻叶绿体DNA ORF100（Open Reading Frame 100）序列在籼粳间存在69 bp差异的特征,设计了InDel标记cpDNA69。利用该标记对2个分别以籼稻和粳稻为母本的F2群体、22份栽培稻（Oryza sativa L.）、3份普通野生稻（O. rufipogon Griff.）进行了分析验证。PCR结果可以获得缺失和非缺失两种带型,缺失带型与以籼稻为母本的F2群体、10份籼稻材料完全对应;非缺失带型与以粳稻为母本的F2群体、11份粳稻材料完全对应,3份广西普通野生稻为非缺失带型,属粳型,1份以粳稻为母本的籼粳杂交材料为粳型。因此,cpDNA69可以用作叶绿体籼粳鉴定标记。利用该标记对22份杂草稻的叶绿体DNA鉴定的结果表明,7份早年发现的杂草稻,即江苏省连云港穭稻和安徽省怀远、来安、全椒、肥东的塘稻的叶绿体DNA为非缺失带型,属粳型,而近年来在江苏省扬中、高邮、灌云、洪泽、盐都、兴化、如皋等地直播稻田发现的15份红米杂草稻的叶绿体DNA为缺失带型,属籼型。这为进一步研究江淮流域杂草稻的来源提供了依据。 相似文献
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辽宁省水稻品种苗期耐盐能力评价 总被引：2，自引：0，他引：2
对辽宁省29个水稻品种苗期150mmol/L NaCl水溶液处理条件下苗高、根长、根数、单株苗干重等指标进行分析,并对品种进行聚类.结果表明,盐丰47-8、辽盐282、辽粳371、辽盐12、桥201-2、辽盐241苗期耐盐能力较强,盐粳98、辽开79-3、沈农9418、铁粳4号、辽2096、沈农9741、盐粳34、铁粳... 相似文献
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Maria Filomena de Jesus Raposo Alcina Maria Miranda Bernardo de Morais Rui Manuel Santos Costa de Morais 《Marine drugs》2016,14(2)
In recent years, scientists have become aware that human microbiota, in general, and gut microbiota, in particular, play a major role in human health and diseases, such as obesity and diabetes, among others. A large number of evidence has come to light regarding the beneficial effects, either for the host or the gut microbiota, of some foods and food ingredients or biochemical compounds. Among these, the most promising seem to be polysaccharides (PS) or their derivatives, and they include the dietary fibers. Some of these PS can be found in seaweeds and microalgae, some being soluble fibers, such as alginates, fucoidans, carrageenans and exopolysaccharides, that are not fermented, at least not completely, by colonic microbiota. This review gives an overview of the importance of the dietary fibers, as well as the benefits of prebiotics, to human health. The potential of the PS from marine macro- and microalgae to act as prebiotics is discussed, and the different techniques to obtain oligosaccharides from PS are presented. The mechanisms of the benefits of fiber, in general, and the types and benefits of algal fibers in human health are highlighted. The findings of some recent studies that present the potential effects of prebiotics on animal models of algal biomass and their extracts, as well as oligo- and polysaccharides, are presented. In the future, the possibility of using prebiotics to modulate the microbiome, and, consequently, prevent certain human diseases is foreseen. 相似文献
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研究了我国主要农家玉米品种的生育期、主茎叶数、株高、茎粗、穗位、穗长、穗粗、穗行数、行粒数、穗粒重、千粒重及出籽率12个数量性状的变异情况,并对其株型、穗型、穗轴颜色、子粒类型及子粒颜色5个质量性状变异进行了简要分析.我国农家玉米品种数量性状的变幅较大,特别是株高、穗粒重和穗位等性状.同时,农家品种也具有它们独特的优异性状,对于育种材料改良有着重要意义。 相似文献
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Andrey B. Imbs Ekaterina V. Ermolenko Valeria P. Grigorchuk Tatiana V. Sikorskaya Peter V. Velansky 《Marine drugs》2021,19(12)
Marine invertebrates are a paraphyletic group that comprises more than 90% of all marine animal species. Lipids form the structural basis of cell membranes, are utilized as an energy reserve by all marine invertebrates, and are, therefore, considered important indicators of their ecology and biochemistry. The nutritional value of commercial invertebrates directly depends on their lipid composition. The lipid classes and fatty acids of marine invertebrates have been studied in detail, but data on their lipidomes (the profiles of all lipid molecules) remain very limited. To date, lipidomes or their parts are known only for a few species of mollusks, coral polyps, ascidians, jellyfish, sea anemones, sponges, sea stars, sea urchins, sea cucumbers, crabs, copepods, shrimp, and squid. This paper reviews various features of the lipid molecular species of these animals. The results of the application of the lipidomic approach in ecology, embryology, physiology, lipid biosynthesis, and in studies on the nutritional value of marine invertebrates are also discussed. The possible applications of lipidomics in the study of marine invertebrates are considered. 相似文献
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Cereal-based products, such as bread, are staple foods in the western diet. Due to the nature of their basic ingredients and the diversity of recipes, the amount of fermentable short-chain carbohydrates (FODMAPs) in those products may be high. This study characterized the FODMAP-profiles of a broad range of cereal-product ingredients, serving as a basis for low FODMAP product development. Different cereals, pseudo-cereals, gluten-free flours, pulses, pulse protein ingredients, commercial sprouts, and other cereal-product ingredients were analyzed, using anion-exchange chromatography with electrochemical detection. Wheat and related cereals were high in fructans. Pulses, such as peas contained high galactooligosaccharides (GOS) amounts. Whereas GOS levels in pulse protein ingredients varied, depending on their production. Gluten-free flours, for instance, rice-flour, showed low FODMAP-profiles. Amongst those, buckwheat, which does not contain any of the FODMAPs investigated, contained high amounts of other soluble non-digestible carbohydrates, namely fagopyritols; these may have a similar effect on a sensitive gut as GOS. Finally, ingredients contained mainly high levels of fructans and GOS. Yet, the analysis of commonly consumed commercial cereal products, including bread, pasta, crackers and biscuits, highlighted the relevance of lactose, fructose in excess of glucose and polyols. These products serve as benchmarks for further product development. 相似文献