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濮玉18是濮阳市神农种业有限公司于2013年育成,组合为PY23×PY07。该品种属中熟品种,黄淮海夏玉米组出苗至成熟103.45d,比对照郑单958早熟0.2d。在2014—2017年各级试验中表现高产、稳产、优质,该品种适宜在我国黄淮海玉米区夏播种植。种植密度以6.75万~7.5万株/hm^2为宜。 相似文献
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河南小麦种业市场现状与发展思考 总被引:1,自引:0,他引:1
河南麦区在全国小麦商品粮生产中占据着重要的核心地位,河南小麦种业发展迅速,商业化育种水平和市场化程度均领跑全国,近几年,种业市场风云再起,如何在新的市场形势下保持良性发展关乎全省粮食安全。针对河南小麦种业现状,从品种选育、服务监管、渠道竞争、生产风险等多角度发现并分析现阶段存在的问题,提出行业未来发展思考。结合现状,建议通过提高育种水平,强化质量意识,加大种业监管,搭建服务平台等有效措施助推河南小麦种业持续发展。 相似文献
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美国先玉335玉米品种目前已在我国黄淮海和东北地区推广,且以粒为单位出售,对我国种子行业带来很大冲击,并对我国玉米品种审定、育种和质量管理提出新的要求。为应对挑战,保证农产品高产、优质、高效、生态、安全,必须确立新的种业发展方向,创新工程化育种模式,采用现代生物技术育种手段,实行育繁推一体化运作。 相似文献
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玉米品种五谷568选育及高产栽培技术 总被引:1,自引:0,他引:1
五谷568是甘肃五谷种业股份有限公司以H9310为母本、WG603为父本杂交组配而成的玉米品种,于2015年通过国家农作物品种审定委员会审定。该品种具有优质、高产、多抗等特点,适宜东北、华北、西北春播区,黄淮海夏播区种植。阐述了该品种的来源、选育经过及特征特性,提出了五谷568玉米高产栽培技术。 相似文献
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黑龙江省自2000年开始种业市场化进程以来,尤其是2006年着力推动种子管理体系建设后,种子产业的发展取得了重大成就,在确保粮食供给安全、提升农业综合生产能力上发挥了重大作用。在肯定黑龙江省种业发展成绩的同时,也要清醒地看到,黑龙江省种业发展整体水平还很低,仍处于市场化初级阶段,存在一些缺陷和矛盾,而其中亟待解决的瓶颈问题主要为:农作物品种创新能力需要提高,种子企业整体实力不强,种子市场形势复杂,种业行政管理水平有待提高。面对黑龙江省种业发展中的瓶颈问题,要继续深化改革,创新机制,努力从科研单位、企业、政府三方面入手,构建三位一体的政策体系,打造品种不断创新、供种保障有力、市场竞争有序的现代种子“大产业”。 相似文献
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介绍了运用冷冻干燥技术进行速溶蛋花汤的加工,研究了生产工艺、特点以及影响产品质量的主要因素。试验表明,采用冷冻干燥技术加工的速溶蛋花汤,具有营养丰富、风味独特、方便快捷等特点。 相似文献
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DENG Zhao-jing 《保鲜与加工》2005,(1):153-156
A new definition of inertia,i.e. the momentum is the measuring of inertia of matter, is proposed. The article through and etc., subjects, the correctness of the new notion of inertia:The monentum is the measuring of inertia has been demonstrated, and the unsolved contradictions of the traditional definition of inetia. And the mass is the measuring of inertia has been revealed. 相似文献
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香蕉是热带亚热带发展中国家重要的粮食作物和碳水化合物来源。但近年来,香蕉生产受到严重的病虫危害。大多数香蕉栽培品种是三倍体,生长周期长,而且不孕。由于没有种子,给繁殖和育种带来一定的困难。遗传转化技术的发展为香蕉品种的改良提供了一种有效的手段。香蕉的遗传转化方法有电激法、基因枪法、农杆菌介导法等。农杆菌介导法的应用是香蕉品种改良的一个重大突破。香蕉遗传转化的外植体也发展到多种,有原生质体,胚性细胞悬浮系,分生组织,以及横切薄片等。近几年,随着分子生物学的发展,出现了转化效率更高,重复性更好的香蕉遗传转化技术。如农杆菌和基因枪结合法,离心辅助农杆菌介导法、真空渗透技术等。这些新技术新方法的出现,必将推动香蕉产业高速发展。 相似文献
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南瓜降糖功能及其系列食品加工技术 总被引:3,自引:0,他引:3
阐述了南瓜在糖尿病辅助治疗方面的功能特性,介绍了南瓜降糖主要制品南瓜全粉、南瓜脆片、南瓜果酱和南瓜肉汁的工艺流程和操作要点。 相似文献
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母猪繁殖障碍成因分析 总被引:3,自引:0,他引:3
繁殖障碍是导致母猪淘汰的最主要因素,直接造成母猪非生产天数延长,繁殖猪群生产效率降低,严重影响猪场的经济效益。本文作者对引起母猪繁殖障碍的多方面因素,包括营养因素(如饲养水平、饲料品质、断奶日龄)、环境因素(如温度、湿度、通风、光照)、疫病因素、生产技术及管理因素进行了详细阐述。 相似文献
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Efficiency of water use of early plantings of sunflower 总被引:4,自引:0,他引:4
M. Auxiliadora Soriano Francisco Orgaz Francisco J. Villalobos Elías Fereres 《European Journal of Agronomy》2004,21(4):465-476
Rain fed crop production in Mediterranean environments depends to a large extent on strategies that avoid the intense summer drought. Early plantings of sunflower have given consistently higher yields in such environments, but the basis for such yield increases has not been explored. We conducted two field experiments at Cordoba (Spain) to investigate the effects of an early and a late planting date on the components of water-limited crop productivity; namely, water use (T), water use efficiency (TE) and harvest index (HI) of sunflower. The results were generalized by simulating rain fed sunflower yields, under early (1 January) and late (15 March) plantings, for a 25-year period with the aid of a simulation model of the Ceres type (OILCROP-SUN) which has been validated in Cordoba. Experimental seed yields of early plantings in 1989 and 1996 were 2.0 and 3.0 t ha−1, while late plantings yields were 1.3 and 2.4 t ha−1, for the 2 years. Average simulated yields were 2.7 ± 1.1 and 1.9 ± 0.7 t ha−1 for early and late plantings, respectively. For the 2 years, T of early plantings was higher than that of late plantings, but the response of TE and HI to planting date was not the same in the two experiments. In the simulation exercise, T and TE of early plantings were consistently higher than those of late plantings, while there were no differences in the HI for the two planting dates. We conclude that early plantings of sunflower increase rain fed yields by increasing both T and TE, while the impact of planting date on HI very much depends on the crop water stress pattern, which is quite variable from year to year even in the predictable Mediterranean environment. 相似文献
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The cotyledon and hypocotyl of eight varieties of alfalfa( Medicago sativa L. )are used to study the effect of different cultivation procedures and genotypes on embryogenic callus and embryoid induction,plant development and transplant of alfalfa.The varieties of alfalfa with high embryoid induction rate and high differentiation rate are screened. A high frequency regeneration system for alfalfa tissue culture is established:which is benifical to the gene transformation of alfalfa. 相似文献
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