共查询到20条相似文献，搜索用时 62 毫秒
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1 茶叶产销形势分析。1．1 春茶产销基本情况。今年全省春茶总产量25257t，产值45681万元，与去年同比，产量减少6．3％，产值增长4．8％。全省14个市州中仅长沙、岳阳、怀化3个市增产、增值，且增幅较小，增幅最大的岳阳市，春茶产量、产值仅增长5．7％和6．8％，其次怀化市分别增长1．7％和1．6％。衡阳、益阳、张家界、永州4个市减产、减值，减幅较大的益阳市，分别减12．5％和8．9％。在减产、增值的7个市州中，自治州产量减幅最大，产值增幅也最大，产量减25．5％，产值增长134．4％。我省普遍反映今年春茶销售形势明显好于往年，尤其是名优茶的销售更为可观。全省今年1～4月份出口茶叶5827t，创汇862万美元，同比分别增长3．1％和30．4％。 相似文献
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1999年世界茶叶产量预计为2891276吨，较上年减少71314吨，减幅为2．47％。统计中的32个国家和地区茶叶生产量，减产的18个，其中减幅最大的为肯尼亚，减产达59165吨，其次是印度，减少50405吨。 相似文献
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<正>湖北省仙桃市地处江汉平原腹地,棉花是该市的主要旱地作物之一,笔者根据调查结果及所掌握的资料,就湖北省仙桃市2014年棉花产销情况及2015年植棉现状作一简述,并分析了其中的主要原因。1 2014年棉花产销情况1.1棉花生产2014年全市棉花种植面积为1.516万hm2,比2013年的2.029万hm2减少0.513万hm2,减幅25.3%;总产1.92万t,比2013年的2.44万t减产0.52万t,减幅21.3%。棉花品质整体好于上年,皮棉以淡点污棉2级为主,同比上升一个级别;长 相似文献
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《中国糖料》2004,(1):52-52
2003～2004年制糖期全国预计产糖980万t,比上制糖期减产80万t,减幅8%。减产的主要原因是甜菜糖产区糖料播种面积减少和甘蔗糖主产区的持续干旱天气,影响甘蔗产量。由于进入生产期以后甘蔗长势受气候条件影响较大,鉴于近期南方甘蔗糖产区旱情有所发展,预计新制糖期食糖产量约在940～980万t之间。受新制糖期全国食糖减产的预期和各种农产品全面涨价的影响,进入11月份以后,全国食糖市场价格有所回升,大部分销区食糖价格在2800元/t左右。2003～2004年食糖生产销售年度,全国食糖消费量预计接近1100万t,考虑到充足的国家储备和关税配额内的食糖进… 相似文献
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据农业部种植业管理司有关消息,今年全国春茶总产量46．29万t,同比减少4．1％;春毛茶总产值189．7亿元,同比减少8．2％。其中安徽、山东、河南、湖北、湖南、广东、广西等7省区均减产10％以上。 相似文献
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据美国农业部经济研究中心统计：2009年1—11月美国出口棉花238．04万t，同比减少15．5％。其前十大市场按出口量排序依次为中国（55．41万t）、土耳其（37．35万t）、墨西哥（27．37万t）、印度尼西亚（18．00万t）、巴基斯坦（14．83万t）、越南（13．94万t）、泰国（12．06万t）、孟加拉国（8．66万t）、中国台湾（7．94万t）、印度（6．49万t），同比分别增加-41．1％、17．1％、-3．6％、-31．9％、65．9％、20．4％、-26．7％、59．7％、-1．2％、21．9％。 相似文献
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《Journal of Cereal Science》2007,45(3):236-251
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. 相似文献
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Sorghum and millet phenols and antioxidants 总被引：5，自引：2，他引：5
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. 相似文献
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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。 相似文献
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种子加工、检验理论与技术现状及思考 总被引：3，自引：0，他引：3
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。 相似文献
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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. 相似文献
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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. 相似文献
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. 相似文献
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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。 相似文献
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ZHU Mingdong WEI Xiangjin XIE Hongjun TANG Guohua ZENG Xiaoshan WANG Jianlong HU Peisong YU Yinghong 《中国水稻科学》2019,33(5):401-406
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. 相似文献
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