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亚麻纤维特点及其与产量、品质关系研究进展 总被引：1，自引：1，他引：1
本文概述了近年来亚麻纤维发育研究进展，着重介绍了亚麻纤维细胞发育、植物激素与纤维细胞壁关系以及环境、栽培因子对亚麻纤维发育、产质量影响研究等方面的内容。 相似文献
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赤霉素对亚麻纤维发育及产量的影响 总被引：4，自引：1，他引：4
在亚麻纤维的快速生长期，向叶片喷施不同浓度的赤霉素溶液，随着亚麻植株的生长，观察其纤维发育情况，通过对获得数据进行分析，证明赤霉素对亚麻纤维的生长及产量具有较大影响，可使亚麻纤维产量得到显著提高。 相似文献
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本课题是对亚麻纤维的发生、发育规律及不同部位纤维分布的解剖学研究。亚麻纤维细胞是从皮层薄壁组织最内层——长生锥里的输导束鞘内分化出来的,它们成束存在,呈环状分布于皮层中。一个纤维束一般有13～20个单纤维由果胶质紧密粘接在一起。茎的周围有20～40根纤维束组成密度不同的环。纤维束依靠从一个束过渡到另一个束的一些单纤维彼此相互连接,形成坚固完整的纤维网。将纤维层同木质部分离后,可得到完整的带状纤维,即工艺纤维。亚麻纤维形成发育规律分为:纤维细胞形成积累、细胞壁增厚、纤维细胞成熟三个阶段。亚麻茎的中部(20～80节)纤维含量高,质量好,是构成高产优质纤维的主要部分。直径1.0～1.5毫米长麻率最高,质量最优。 相似文献
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浅谈中国纤维亚麻的现状与建议 总被引：4，自引：1，他引：3
本文从中国纤维亚麻优势、中国亚麻的科研工作、问题与差距和对亚麻生产发展的建议四个方面对进行了论述。客观地分析了中国纤维亚麻所处的现状，对今后中国开展纤维亚麻的工作提出了建议，为中国纤维亚麻的发展提供了理论依据。 相似文献
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栽培亚麻的遗传多样性研究 总被引：1，自引：0，他引：1
基于110份来源于世界各地的亚麻(Linum usitatissimum)资源(栽培品种和育种材料)和1个野生近缘种L.bienne,利用AFLP技术研究形态学上不同的亚麻,即纤维亚麻和油用亚麻的遗传多样性.聚类分析结果表明,L.bienne明显区别于其他样品,自展值高;纤维亚麻与油用亚麻和不明用途亚麻也能区别开来,但自展值偏低.主成份分析显示,纤维亚麻与油用亚麻区别明显,但L.bienne与油用亚麻之间难以区别,荷兰、法国的纤维亚麻与其他国家的纤维亚麻亦可明显区别,这说明亚麻基因库出现了类群结构.分子方差分析显示,纤维亚麻的变异度低于油用亚麻及不明用途亚麻,因此,油用亚麻和野生亚麻L.bienne是丰富纤维亚麻基因库的潜在种质资源. 相似文献
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对中国、法国、俄罗斯的代表性亚麻纤维的理化性能进行了测试与分析,比较了各亚麻纤维的特点.结果表明,俄罗斯亚麻纤维的综合性能相对较优. 相似文献
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黑龙江省一直以栽培纤维型亚麻为主，进入21世纪后，国内外亚麻纤维市场需求发生较大变化，致使我省纤维亚麻种植面积逐步减少。为发挥我省亚麻产业资源优势，我省亚麻主产区用油用亚麻替代部分纤维亚麻种植，相继建设以亚麻籽为原料的加工企业，开发出亚麻油、阿尔法亚麻酸、亚麻胶、亚麻冲剂等多个新产品，销往日本、韩国等东南亚国家。本文主要阐述黑龙江省油用亚麻栽培需要的生态环境，土壤、品种、施肥、病虫害防治等技术要点。同时提出油用亚麻和纤维型亚麻不同的技术要求及对策。 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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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。 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