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两优3917系由湖北垦丰长江种业科技有限公司培育的优质高产早稻品种,具有抗倒伏、适应性广、稳产性好、产量高、米质优等特点。本文重点介绍了其特征特性,并总结了相应的高产栽培技术要点。 相似文献
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几种早稻育秧方式生育特性初探 总被引：1，自引：1，他引：0
１９９７年以湘早籼１７号、湘早籼１９号和威优早１号为供试品种，进行旱育秧、塑盘旱育抛栽和水秧栽培的试验。结果表明，旱育秧的秧苗素质和产量构成因素均优于水秧，因而产量较高，而又以塑盘旱育抛栽的效果较好，分别比旱育秧和水秧栽培增产４％和１５．１％，具有广阔的推广前景。 相似文献
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早稻高产栽培途径研究及效益分析 总被引：1，自引：0，他引：1
为探讨早稻高产的途径，对湘早籼２４号采用了旱育移栽、软盘抛秧、分厢撒播和机械化条点播四种栽培方式处理。结果表明，旱育移栽的单位面积产量、净产值和纯收入均最高，软盘旱育抛栽的劳动生产率和利润最高，并分析了不同栽培方式的生育特性、群体发育动态、干物质积累和产量构成，认为应根据生产特点选择不同的栽培方式。 相似文献
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Ｔ优 78 89系福建农业大学作物科学院遗传育种研究所与省种子总站合作 ,用不育系Ｔ78Ａ与早恢 89配组选育而成的优质早稻新组合 ,2 0 0 0年早季首次引进建瓯市示范栽培 ,地点设在福建省水稻新品种中试基地小松镇湖头村成片种植 ,示范面积2ｈｍ2 ,示范种子 4 5ｋｇ ,平均产量 4 88 5ｋｇ/666 7ｍ2 ,比对照威优 77增 4 83% ,比对照优质早稻品种佳禾早占增 2 1 2 % ,米质据农业部稻米及制品质量检测中心鉴定 ,12项指标中有 11项达到部颁二级优质米标准以上 ,是一个高产、优质、综合性好的杂交早稻新组合。1 特征特性1 1 农艺性状 Ｔ优 7889… 相似文献
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氮肥用量和移栽密度对超级早稻产量及某些生理指标的影响 总被引：4，自引：1，他引：3
为了探讨氮肥用量与插秧密度对超级早稻产量的影响,2007年在长沙、常德、郴州进行了大田栽培联合试验。结果表明不同施肥量处理间产量及有效穗数、每穗粒数、结实率、收获指数等产量构成因素差异显著．中早22产量与施氮量呈单峰曲线,以150kg／hm^2施氮量处理的产量最高（长沙7．5t／hm^2,常德9．4t／hm^2）．在0～150kg／hm^2的施氮范围内增产效应最明显;陆两优996产量随施氮量增加而增加,以195kg／hm^2施氮量处理的产量最高。在30×10^4～36×10^4穴／hm^2的密度范围内,穗数与每穗粒数之间具有良好的互补性,因而密度间产量差异未达显著水平。本试验条件下,氮肥和栽插密度对产量的互作效应不显著。 相似文献
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早熟早籼新品种８９早２２９示范情况及栽培技术廖毅敏（湖南省宁乡县种子公司４１０６００）宁乡县于１９９１年冬引进８９早２２９。１９９２年全县设４个点进行早稻品比和示范，折合平均产量为６０８２．５ｋｇ／ｈｍ２，比对照浙辐８０２增产２．５％，居５个早熟品种... 相似文献
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早稻直播栽培具有省工、省力、省本、缓解季节紧、农事忙和高产、高效、防止粮食滑坡行之有效的途径。试验结果表明：早稻直播在粮食生产中应用，可比湿润秧推迟播种期，又可提高单位面积产量，降低工本，增加效益。一、产量构成根据试验考种：广桂一号直播（撒播下同），栽培每公顷有效穗397．65万德，比广桂一号育湿润秧移栽（对照）增加95．85万穗，增长31．76％，穗均粒数100．5粒，结实率89．04％，千粒重27．0g，理论产量9607．5kg，实割每公顷9282．0kg，比对照每公顷增1006．5kg，增长12．28％；601品种直播（撒播下同）栽培每公顷… 相似文献
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不同基追肥比例对早稻生长发育及产量的影响 总被引：1，自引：0，他引：1
按照湖南省测土配方试验示范方案的要求,在肥料施用总量相同的情况下,采用7∶3,6∶4和5∶5三种基追肥比例进行田间小区试验,以研究不同基、追肥比例对粘土质地早稻生长发育及产量的影响。结果表明:粘性土质不同基、追肥比例之间早稻产量无明显差异,但以基、追肥比例为6∶4时产量最高,达6 537 kg/hm2。 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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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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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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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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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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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