flag leaf

The improvement of stay-green can increase stem and leaf water content, but can't increase kernel water content. Correlation analysis revealed that flag leaf area increased grain yield by increasing spikelet number per panicle.

相关分析表明，较大的剑叶可以增加穗粒数并显著增加产量，然而叶绿度和持绿性与产量、产量性状无关或呈显著负相关。

Soluble protein in flag leaf, which implies senescence of flag leaf, tented to decline with the increase of nitrogen fertilization.

在氮素代谢方面，增施氮肥使小麦旗叶中硝酸还原酶活性增加，旗叶中可溶性蛋白含量降低，可明显延缓小麦叶片的衰老；

The results show that the flag leaf roll trait is controlled by two recessive genes.

结果表明,叶片平展对卷曲为显性,卷叶植株受两对隐性基因控制.

Effects of Different Soil Water on Senescence of Flag Leaf and Root in Winter Wheat on Immature Soil

生土地上不同土壤水分对冬小麦旗叶和根系衰老的影响

QTL Analysis for Flag Leaf and Grain Shape and Populations Construction Derived from Related Residual Heterozygous Lines in Rice

水稻剑叶形态与稻米粒形QTL分析及相应剩余杂合体衍生群体的构建

As total amount ( 10kg/ mu) was less, on time of 4th and 2nd to flag-leaf increased panicles, and enhanced kilograin weight and seed setting percentage, got high yield.

在总施氮量较少的情况下（本试验为10kg／mu），于倒4叶、倒2叶期等量分次施用穗肥，穗数增多，同时提高千粒重和结实率，获得较高产量。

Effects of Flag Leaf on Grain Protein and Yield in Wheat

小麦旗叶对产量性状及籽粒蛋白含量作用的研究

Dian-type sterile line Japonica higher plant height in the 117.2 cm around flag leaf has a long, straight, narrow features.

滇型粳型三系不育系株高较高在117.2cm左右，剑叶具有长、直、窄的特性。

In addition , flag leaf was very special, perhaps due to its important function.

旗叶与其他叶片相比表现了特殊性, 这可能与其特殊的功能有关.

Nitrogen application and CO2 concentration have the opposite effect. It also maintain chlorophyll fluorescence reaction center highly open, relieve Pn decrease in flag leaf. 3.

增施氮肥与CO2浓度有相反效应，通过提高N素营养可以维持ΦPSⅡ反应中心高度开放，缓解了CO2浓度带来的旗叶光合能力的下降。

Thus it is important to genetically analyze the morphological characteristics, such as the leaf size of functional leaves, especially flag leaf in rice improvement.

因此，对功能叶尤其是剑叶形态和大小的遗传分析对于提高作物产量十分重要。

The ears have the most influence to the grain yield among the non-leaf organs, mainly through increasing 1000-grain weight. The flag leaf affect the grain yield obviously among leaf organs, mainly through increasing the grain numbers/ ear.

非叶光合器官中穗对产量的影响最大，主要是对千粒重影响明显，叶光合器官中旗叶对产量影响较大，叶主要是对穗粒数的影响显著。

Effects of Genotype and Irrigation on the Length of Guard Cells in Wheat Flag Leaf

基因型和灌溉对小麦旗叶保卫细胞长度的影响

The eui mutation also resulted in significant increase in flag leaf and grain length.

该突变还引起了剑叶和粒长发生显著变化。

Change Regularity of Water Potential in Wheat Flag Leaf in Day and Night

小麦开花期旗叶水势晴天昼夜变化规律研究

Effects of drought on photosynthesis of flag leaf and dry matter remobilization of main stem in different varieties of winter wheat

干旱对不同抗旱性冬小麦旗叶光合及主茎干物质转运的影响Na～+与多浆旱生植物霸王抗旱性研究

The differences between flag leaf and spike photosynthesis and their relationships with drought tolerance of drought.

旗叶和穗光合作用的差异及其与耐旱性的关系.

A Study on Biochemical Characters of Flag Leaf Drought Resistance after Anthesis on Different Wheat Varieties

不同抗旱性小麦品种花后旗叶生化特性的研究

The result indicated that there was negative relationship between the angle of flag leaf and primary branches of Shennong 606;

结果表明不同株型品种叶片角度与枝梗数存在一定的相关性，其中：沈农606剑叶基角和剑叶开张角与一次枝梗数呈负相关；

Genetic analysis on morpho-physiological traits of barley flag leaf

大麦剑叶形态生理性状的遗传分析

The NR activities of flag leaf and root were increased significantly.

旗叶和根系中硝酸还原酶（NR）活性亦显著提高。

Chlorophyll content per unit area of the flag leaf of low K treatment was slightly higher than that of middle and high K treatments, but the former decreased rapidly along with maturity and senescence of the leaf.

试验结果：（1）低钾叶片的叶面积减小而比叶重增高，抽穗后剑叶单位面积的叶绿素含量在前期稍高于施钾处理，但随着叶片的成熟与衰老其含量即迅速下降；

After heading, flag leaf stomatal conductance, net photosynthetic rate increased with the increase of the application of nitrogen and potassium.

抽穗后剑叶气孔导度、净光合速率随着氮钾用量的增加而增加。

Field experiments were conducted over three consecutive years ( 1995~ 1998). In the same weather conditions, soil and cultivating, characteristics of flag leaf senescence and activated oxygen metabolism for cold type wheat ( CTW) and warm type wheat ( WTW) were studied.

以典型的冷型小麦和暖型小麦为试验材料，研究了同一环境背景下不同温度型小麦开花后的旗叶衰老和活性氧代谢特性。

Correlation Analysis between the Space of Flag Leaf, Young Spike Length and Meiosis Dynamics of Wheat

小麦旗叶距、幼穗长度与减数分裂动态相关性分析

Response of Main-Effect QTL for Plant Height and Flag Leaf Width to Artificial Selection in Rice

影响水稻株高和剑叶宽主效QTL对人工选择的响应