共查询到20条相似文献，搜索用时 750 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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采用水蒸汽蒸馏同时萃取法（SDE法）制备了窨制茉莉花茶、添加香精茉莉花茶和茶坯的香气物质，经气相色谱一质谱（GC～MS）分析了二者在香气组成和含量上的差异。结果表明，窨制茉莉花茶在主要香气组分的数目和相对含量上都与添加香精茉莉花茶存在着不同程度的差异。 相似文献
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以不同窨制次数的福州茉莉花茶为样本,采用气相色谱-质谱联用法（GC-MS）测定各香气成分的相对含量,结合茉莉花茶香气指数（JTF index）和感官评价等指标,为全方位评审茉莉花茶质量提供数据支持。结果表明,从一窨到五窨一提,香气成分的相对含量与种类逐渐增加,最终分析得到了77种香气成分。茉莉花茶的品质从四窨到五窨有显著提高,而五窨茉莉花茶质量略低于五窨一提,但并无显著性差异。因此,综合成本和工艺繁简考虑,选择五窨茉莉花茶作为最佳窨制次数花茶。该研究为优化茉莉花茶的加工提供了参考依据。 相似文献
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茉莉花茶产业概况与创新发展 总被引：1，自引：0，他引：1
茉莉花茶是中国具有悠久产销历史的再加工茶类.文章剖析了中国茉莉花茶产销概况,指出了茉莉花茶产业发展的瓶颈,提出了茉莉花茶加工技术创新与产品创新路径,展望了茉莉花茶产业发展前景,阐述了茉莉花茶的健康属性与消费空间.笔者认为,依托创新驱动,茉莉花茶产业将具有较大的发展潜力和市场消费空间. 相似文献
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茉莉花茶香气的SPME/GC-MS检测方法 总被引：1，自引：0，他引：1
为建立茉莉花茶香气的固相微萃取/气相色谱-质谱(SPME/GC-MS)联用的快速检验方法,以"春毫茉莉花茶"为材料,研究萃取头类型、吸附温度、吸附时间和样品量对SPME吸附茉莉花茶香气的影响,同时研究脱附时间对SPME中茉莉花茶香气脱附效果的影响.结果表明:应用SPME/GC-MS技术检测茉莉花茶香气,具有简便、快速、准确和灵敏度高等特点;测定茉莉花茶香气的推荐条件为用150 g茉莉花茶样品量、PDMS-100μm萃取头、在60℃下吸附2 h、脱附时间5 min. 相似文献
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湿窨工艺及配花量对茉莉花茶香气成分的影响 总被引：6，自引：0，他引：6
采用SPME/GC-MS技术分析高档茉莉花茶的香气组分,结果表明苯甲酸顺-3-己烯酯、芳樟醇、乙酸苄酯、邻氨基苯甲酸甲酯是茉莉花茶的主香组分,这些成分构成了茉莉花茶香气浓度的基础。采用湿窨工艺窨制茉莉花茶,苯甲酸顺-3-己烯酯、芳樟醇、邻氨基苯甲酸甲酯、杜松萜烯、吲哚、苯甲醇、橙花叔醇、乙酸香叶酯等成分的含量显著提高; 配花量在69%~115%之间,配花量递增,茉莉花茶香气成分的含量亦随之增加,当配花量达到96%以上,茉莉花茶的主要香气成分含量差异不显著,表明茶坯的吸香已趋于饱和。采用湿窨工艺窨制高档茉莉花茶的适宜配花量为90%~100%。 相似文献
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