【摘 要】
：
倒伏是水稻减产的原因之一。有许多丰产品种往往因为后期倒伏减产,不能充分发挥其生产潜力。对于抗倒伏的研究星川清亲、李扬汉等进行品种形态与抗倒伏性的观察;周拾禄等作
论文部分内容阅读
倒伏是水稻减产的原因之一。有许多丰产品种往往因为后期倒伏减产,不能充分发挥其生产潜力。对于抗倒伏的研究星川清亲、李扬汉等进行品种形态与抗倒伏性的观察;周拾禄等作了营养元素与倒伏关系的论述。在云南丰富多彩的稻种资源中常常能看到一些高秆大穗品种,在与倒伏品种同等营养条件下却表现出较强的抗倒伏性,且陆稻、秈稻常较粳稻抗倒伏,但目前对这方面的研究甚少。为了进一步开发利用丰富的云
Lodging is one of the reasons for the reduced production of rice. There are many high-yielding varieties that are often unable to give full play to their productive potential because of the late lodging and yield reduction. For lodging research Xingchuan Qing pro-Li Yang Han and other species morphology and lodging resistance observed; Zhou Lilu et al made a discussion of the relationship between nutrients and lodging. In the rich and varied rice resources in Yunnan Province, some tall and big ear varieties can often be seen, which show strong lodging resistance under the same nutritional conditions as the lodging varieties, and the land rice and indica rice are often lodging resistant to japonica rice At present, little research has been done on this aspect. In order to further develop the use of rich cloud
其他文献
Perovskite-based optoelectronic devices,especially perovskite light-emitting diodes (PeLEDs) and perovskite solar cells,have recently attracted considerable att
Polariton-hybridization of light-matter oscillations can emerge from various quasiparticles, such as phonon,plasmon, exciton and magnon.Particularly, exciton po
研究意义与目的: 肝细胞损伤是多种肝脏疾病共有的一种病理变化，其长期存在往往是导致肝纤维化，甚至是肝硬化、肝癌发生的重要始动因素。因此防治肝细胞损伤是临床肝病治疗
无论是建立人工草地,还是补播改良天然草地,以及控制水土流失,种植绿肥,或是绿化大地,美化城市,铺建草坪等都需要大量适应性强的优良牧草种子。牧草是发展畜牧业的物质基础,
目的:通过慢病毒介导建立成纤维生长因子受体1(fibroblast growthfactor receptor1，FGFR1)沉默的高转移性乳腺癌细胞模型，进行全基因组表达谱基因芯片分析，筛选出FGFR1沉默组与
Over the last decade,the power conversion efficiency of hybrid organic-inorganic perovskite solar cells (PSCs) has increased dramatically from 3.8％ to 25.2％.This
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
术中光学成像技术的兴起为临床手术提供了更加便捷和直观的观察手段。传统的术中光学成像方法包括开放式光学成像和术中腔镜、内镜成像等,这些方法保障了临床手术的顺利进行,同时也促进了微创手术的发展。随后发展起来的术中光学成像技术还有窄带腔镜成像、术中激光共聚焦显微成像和近红外激发荧光成像等。术中光学成像技术可以辅助医生精准定位肿瘤、快速区分良恶性组织和检测微小病灶等,在诸多临床应用领域表现出了较好的应用效
一、引种地自然条件引种地位于广西南宁市北郊(北纬22°49′,东经108°21′),属于亚热带季风气侯,年均温21.3℃,1月份平均气温12.9℃,7月份平均气温28.3℃。平均霜期2—3天
1880年Saccardo提出两个属名Pyricularia和Dactylaria;引起稻瘟病的真菌曾用过这两个属名。他首先也拼为Pyricularia,后来又改为Piricularia。1881年,Cavara第一个描述稻瘟