论文部分内容阅读
分析了豫西地区苹果叶片微量元素含量及其与果实硬度的关系,结果表明,铁的含量最高,其次为锰,再次为锌,含量最低的为铜,果实硬度在9.32～13.53 kg/cm2之间;对叶片中微量元素含量与其果实硬度进行相关性分析发现,Fe含量与果实硬度呈极显著负相关,Mn含量与果实硬度呈显著负相关.
豫西地区苹果叶片微量元素含量及其与果实硬度的相关性
【摘 要】
：
分析了豫西地区苹果叶片微量元素含量及其与果实硬度的关系,结果表明,铁的含量最高,其次为锰,再次为锌,含量最低的为铜,果实硬度在9.32～13.53 kg/cm2之间;对叶片中微量元素含
【出 处】
：
西北农业学报
【发表日期】
：
2004年期
其他文献
The non-point source (NPS) information system based on remote sensing and GIS and its preliminary ap
A non-point source information system (NPSIS) has been constructed by use of remote sensing and GIS technology, and a construction method of NPSlS introduced wi
本文针对普遍存在的毕业设计与就业、考研、选调和学生到就业单位实习等在时间和内容安排上的矛盾,表现出毕业设计流于形式、教育质量不能保证等诸多问题,积极探索并采取了一
叙述了泰国的人文、经济和运输数据.归纳了农业概况,着重介绍了主要谷物大米和玉米的情况;农业政策中的对大米、玉米和大豆的支持政策:上市支持、抵押方案和推广玉米杂交种子
Regional geography, embodying the regionality and integration, is the kernel of Geography. Since the 1980s, the Chinese geographers have extensively taken part
In the presence of acetone and an excess of exogenous plant pheophytins,bacteriopheophytins in the reaction centers from Rhodobacter sphaeroides RS601 were repl
A flip-chip-type gradiometer has been constructed with a 10 mm×5 mm planar DC-SQUID gradiometer fabricated on a SrTiO3 bicrystal substrate and a flux transform
为探讨坝基开挖对建基面和坝肩稳定的影响 ,建立粘弹塑性模型,用有限元凝聚法对坝基开挖稳定问题进行分析计算,研究了建基面及软弱结构面与时间因素有关的位移、应力、屈服破
ERH end-quenching method was used to determine the hardenability of four kinds hot-forging die steels with deep-hardening and hence the order of their hardenabi
Cloning, tissue expression pattern characterization and chromosome localization of human peptide met
Oxidation and reduction of some amino acids are one of the molecular mechanisms for regulating the function of proteins. The oxidation of methionine (Met) to me
PKI应具有可扩展性,因此当用户数量超出系统容量时,可以简单地通过增加PKI实体数量和管理层次来满足用户的需求,实现从原有系统的平滑扩展.本文讨论了PKI的向上、向下和水平