共查询到20条相似文献,搜索用时 140 毫秒
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针对生产上对优质高产早熟广适油菜品种的迫切需求,以川油系列新细胞质不育材料为基础,协同改良优质高产早熟性状,创制双低优质不育系、恢复系,组配强优势杂交组合,育成优质高产早熟新品种川早油1号,2019年通过国家非主要农作物品种登记,2020年通过国家非主要农作物品种扩区登记。该品种具有生育期短、双低品质、株高适中、抗倒性强、产量高、适应性广等优点。适宜在云南和贵州早熟油菜地区、四川、重庆、陕西、湖北、江西冬油菜产区秋播种植。川早油1号的育成及其推广应用对缓解我国长江流域两熟或三熟地区油菜与后茬作物的茬口矛盾,推动产业发展具有重要意义。 相似文献
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秦油二号是我县 80年代引进的高产杂交油菜新品种 ,具有适应性广、产量高的优点 ,90年代初成了我县油菜当家品种 ,但生育期长 ,茬口矛盾突出 ,不育株率高。油研七号是贵州省油科所研究培育的双低杂交油菜品种 ,具有品质好、适应性广、生育期适中、产量高等优点 ,深受我县广大农户的欢迎 ,在我县推广较快。为了进一步科学的鉴定油研七号在我县的种植优势 ,1997年我县承担了省项目组安排的秦油二号与油研七号同田对比试验 ,现将结果简报如下 :1 材料与方法1.1 试验地点为了摸索我县不同海拔、不同气候条件下油研七号的产量优势 ,1997年秋 ,… 相似文献
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为筛选紫云县适宜油菜品种,采用随机区组试验,研究5个贵州省选育的新品种的适应性。结果显示,黔油31号、宝油早1号油菜品种田间产量较高,适宜在紫云县大面积推广。 相似文献
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“油研1号”是我所近年杂交选育而成的甘蓝型优质油菜中早熟新品种,原编号8507。其具有丰产性好,适应性强,对油菜菌核病有一定耐性。1990年7月正式审定通过,可在全省多数地区推广应用。同时,我们对“油研1号”进行了综合丰产栽培技术措施的系统研 相似文献
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保油8号(原名48-1)是云南省保山市农业科学研究所选育的常规甘蓝型油菜新品种.该品种在各种试验示范过程中表现出较强的丰产性、稳产性和适应性,具有优质、高产、早熟等特性.2012年通过云南省农作物品种审定委员会审定,定名为保油8号,审定编号:滇审油菜2012001号. 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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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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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