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- Abstract： Using Improved serape-making method,the studies were made on the stomatal density of flag leaves of rice. 摘 要： 用改良刮制法研究了水稻剑叶的气孔密度。
- We found that from the flag leaves full-expanded to senescence anaphase, there were C4 pathway enzymes in flag leaves. 本实验亦证明三个水稻品种从剑叶全展开始直至衰老后期叶片中始终存在有C4途径的酶活。
- Regulating Effects of Tianda-2116 on Photosynthesis and Senescent Traits of Flag Leaves after Anthesis in Triticum aestivum L. 天达-2116对冬小麦花后旗叶光合与衰老特性的调节效应。
- This the first report of cytogenetic study of flag leaf position in common wheat ,Triticum aestivum L. 摘要 本文首次对小麦旗叶姿态进行了比较系统的细胞遗传学研究。
- Fig. 1 Effects of different nitrogen fertilization rate on activities of nitrate reductase(A) and protease(B) in flag leaves of forage rice. 图1不同施氮量对饲料稻旗叶硝酸还原酶（A）和蛋白水解酶（B）活性的影响
- Because accumulation of photosynthate decreased, the increase in the N fertilizer made soluble sugar content in flag leaves reduce. 由于光合产物积累减少，增施氮肥使旗叶可溶性糖含量降低。
- The flag leaves has started aging, since Peiza67 entered into the slow growth period, which affected the plumpness of the inferior grains. 培杂67在进入灌浆缓增期时，剑叶就已衰老，影响了弱势粒的灌浆充实。
- The cultivars that had a high chl (a+b) value,low chl (a/b) value and relatively big Flag Leaf area could be selected in wheat breeding. 小麦育种上应选择生育后期叶绿素 (a +b)较高 ,叶绿素 (a/b)值低 ,且旗叶面积相对较大的品种。
- At all stage of flag leaves senescence, we can find the activity of C_4 pathway enzymes:PEPCase,PPDK,NADP-ME,NADP-MDH. We surmise that there are C_4 path-way in hybrid rices. 本实验亦证明在剑叶全展后的各时期均能测定到C_4途径关键酶:PEPCase、PPDK、NADP-ME和NADP-MDH的活性,推测在供试材料中可能存在有C_4途径。
- It can be seen from this that the main reason that flag leaves of wheat contributed much to the formation of grain yield is cau- sed by its special structure. 由此可见,小麦旗叶对产量形成贡献最大的原因,是由其特殊结构所致。
- There were close correlation in the same SOD, POD, CAT, NR and GS activity, and MDA content between roots and flag leaf. 小麦生长发育后期根系与旗叶超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)的活性、丙二醛(MDA)的含量、氮素代谢特性是相互联系、密切相关的；
- Effect of irrigation on photosynthesis decline of winter wheat flag leaf during senescence was studied with field plot experiment. 利用田间小区试验研究了不同灌水对冬小麦旗叶光合功能衰退的影响。
- The effects of deep cultivation-root cutting on the senescence of flag leaf after anthesis and yield have been studied for dry land wheat production. 在旱地大田条件下研究了深耘断根对旱地高产小麦花后旗叶衰老及产量的影响。
- The role of overirrigation improving photosynthesis decline of flag leaf was mainly at the latter stage and had no role for yield increase. 过量灌水改善旗叶光合衰退的效果主要表现在后期，对产量提高的意义并不大。
- Plastic film mulching markedly increased biomass per a plant,flag leaf area,tillers per unit soil area,grains per ear and 1 000-grain weight. 覆膜显著增加单株生物量、旗叶面积、亩穗数、穗粒数和千粒重。
- As to the different parts of the plant in filling stage, the lower senescing stems and leaves volatilized more ammonia than the upper normally growing ears and flag leaves. 同一植株不同部位的挥发量相差很大，下部衰老茎叶的氨挥发量明显高于生长正常的上部穗和旗叶。
- Results indicated that the order of net photosynthetic rate of the flag leaf Was: Taishan No.1 (adaptability moderate) >Jinan No.13 (strong) >Changle No.5 (weak) . 结果表明，旗叶的光合速率顺序为: 泰山一号(中度耐肥)>济南13(高度耐肥)>昌乐5号(不耐肥)。
- The g enetic variance coefficients, broad sense-heritability and relative genetic adva nces of flag leaf inclination angles were high, and their selective effect was better. 结果表明：小麦旗叶倾角的遗传变异系数、广义遗传力和相对遗传进度较高，选择效果较好；
- Leaf rolling index (LAl) of flag leaf (from top) in 2 hybrids withhigher LRI reached 44%-47%, in 2 hybrids with medium LAl was l5%-l6%, in 2hybrids with low LAl was l0%-l l%. 下表面与上表面光合强度比在高叶片卷曲度组合中为1.;19-1
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
