【摘 要】
：
本研究观察了冬、春小麦不同品种,不同叶位的叶肉细胞结构,叶肉厚度,叶片气孔频率,叶脉频率等与光合效率有关的结构因子。叶片解剖结构与生理功能具有统一性。叶片细胞结构有
【机 构】
：
新疆石河子农学院,新疆石河子农学院,新疆石河子农学院,新疆石河子农学院,新疆石河子农学院
论文部分内容阅读
本研究观察了冬、春小麦不同品种,不同叶位的叶肉细胞结构,叶肉厚度,叶片气孔频率,叶脉频率等与光合效率有关的结构因子。叶片解剖结构与生理功能具有统一性。叶片细胞结构有低位叶简单,高位叶复杂的变化。气孔频率、叶脉频率、叶肉厚度也随叶位的不同而有显著差异。特别是旗叶,叶面积大小、功能期长短及光合效率有关的构造因子与籽粒产量形成具有决定意义。因此,把旗叶形态、结构作为判断小麦丰产性指标是适宜的。
In this study, we observed the structural factors related to photosynthetic efficiency, such as cell structure, leaf thickness, leaf stomatal frequency and leaf vein frequency in different varieties and leaf positions of winter wheat and spring wheat. Leaf anatomy and physiological functions are unified. Leaf cell structure with low leaf simple, high leaves complex changes. Stomatal frequency, leaf vein frequency and leaf thickness were also significantly different with leaf position. Especially flag leaf, leaf area size, functional duration and photosynthetic efficiency related to the formation of structural factors and grain yield formation is decisive. Therefore, the flag leaf morphology and structure as an indicator of wheat yield is appropriate.
其他文献
植物RBR蛋白(retinoblastoma-related protein)是动物pRB(retinoblastoma protein)的同源蛋白,广泛表达于各种组织细胞中。RBR通过与其它蛋白质间的互作,参与调控细胞周期相关基因的表达,影响细胞增殖、分化及凋亡。鉴定RBR基因分子特征,明确其与同源基因间亲缘关系和分类地位,对探索植物生长发育过程中细胞增殖和分化相关调控途径的研究具有重要意义。本
本试验以自交系沃30和沃30与地方种质沃日黄优株经混粉重组后新育的8个重组改良系及其10个测验种按不完全双列杂交组配的90个组合为供试材料,通过田间试验,配合力分析和SSR分子标记探讨了利用地方种质与其选系重组的育种效果。结果表明:1.沃30及8个重组改良系在8个主要性状上的差异较大,其中以单株产量的变异系数最大达48.56%,以穗粗的变异系数最小为11.05%,各性状平均变异系数为20.94%。
西瓜(Citrullus lanatus)是一种世界性园艺作物,具有较高的食用价值和医疗保健价值,是深受人民喜爱的水果之一。西瓜遗传资源丰富以及资源的创新对于西瓜育种尤为重要。本研
本试验以广西甘蔗当家品种新台糖22号(ROC22)为供试材料，在玻璃温室大棚条件下通过人为控水控肥，研究了不同供水量与施磷量对甘蔗生长、生理的耦合效应。不同供水量设置了3个水
Though rare, angiomyolipomas (AMLs) are the most common mesenchymal tumors of kidney. In general, AMLs can always be associated with two conditions affecting ot
The present study provides supportive evidence for the effective prevention and treatment of lipopolysaccharide(LPS)-induced hepatocyte injury in neonatal mice
The biological features of intrahepatic CD4+CD25+ T regulatory cells in the naturally tolerance of rat liver transplantation were explored.Orthotopic liver tran
Idiopathic nephrotic syndrome (INS) is characterized by marked urinary excretion of albumin and other intermediate-sized plasma proteins,such as transferrin and
The recent development of 2-dimensional strain (2D strain) imaging can provide a powerful altemative for assessing left ventricular (LV) torsion.This study was
摘 要：在当前信息化社会，网络协作学习受到了领域教学专家和教学实践工作者的重视。文章从协作学习的概念和构建原则入手,探讨了课堂网络环境下协作学习模式的构建与教学过程的实施。 关键词：课堂网络环境；协作学习；模式 中图分类号：G434 文献标识码：A 文章编号：1673-8454(2008)16-0046-03 一、问题提出 在当前信息化社会，网络协作学习受到了领域教学专家和教学实践