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This study was made to develop an accurate, simple and rapid method for estimating individual leaf area of wetland taro 〔Colocasia esculenta Schott〕 under different growth periods in Taiwan. The experiment was conducted in the fall crop of 1991 at Taiwan Agricultural Research Institute.

本研究之主要目的在探讨台湾本地栽培种槟榔心芋於水田栽培时之单叶面积的简易估算方法,藉不同取样时期的叶长及叶宽之测量,以寻找出一套精确、简单、迅速且适用於整个生育期之简易方式来估算叶面积。

The decreased ReHo is distributed over left occipital lobe, left cuneus, left precuneus, left lingual gyrus and right frontal lobe, right middle frontal, right gyrus, right frontal Lobe, right inferior frontal gyrus and right precuneus.

ReHo增高的脑区广泛分布于左侧枕叶、楔叶、楔前叶、右额叶、中心前回、额下回、左侧的舌回和右侧顶叶。

Who began the birth of fertilized eggs, fertilized egg in the womb after implantation embryo to go out in turn divided leaves, mesoblastic, with ectodermal, ectodermal brain is the prototype.

人的诞生始于受精卵,受精卵在子宫内着床后依次分化出外胚叶、中胚叶、内胚叶,其中外胚叶就是脑的原形。

In order to evaluate the effects of important ecophysiolorical factors, such as light intensity, temperature, relative humidity, leaf structure(SLW, specific leaf weight; and SLA, specific leaf area) etc., on the net photosynthetic rate of Gordonia under natural conditions, the diurual and seasonal variations in Pn are measured with the improved dry-weight method.

为了探讨在自然条件下重要生理生态因子,如光照强度、温度、相对湿度、叶结构(SLW,单位叶面积干重;SLA,单位叶面积率)等对四川大头茶净光合作用的影响,本文采用改良半叶法测定四川大头茶净光合作用日变化和年变化,并结合遮阴实验详细研究了生理生态因子与Pn的关系。

The typi ca1 symptom j s fold and b1 istering, even d istortj on, 1ops i ded j -- eaf, shorti ng p ant, there are motley with 1ight green and deep green, and some of the motey are ye1wt MM 1eave M tny: the i.1--1ed has arias mosai c, 1ops i ded, and the tissue of the i11--1eaf has deteriorated exceeding1y, with s1ender pteridophyte 1.eaves, i l1 p1ant is green--yeI 1ow, obvious1y shortened in joint, the who1e p1ant serious1y shortened and grows thickly.

南瓜病毒病的典型症状为皱缩有疱斑、甚至扭曲,病叶畸形,植株矮化;花叶叶片上出现淡绿色和深绿色相间的斑驳,有的斑驳明显黄化;蕨叶丛枝型:病叶不但严重花叶、畸形,而且叶肉组织极度退化,纤细呈蕨叫叶状,病株黄绿色,节间明显缩短,整个植株严重矮化丛枝状。

Pronounced differences were found in Left perisylvian/Language and Medial temporal/Memory systems, along with significant differences in Lateral/Prefrontal/Working memory and Anterior cingulate/Cognitive control and smaller, nonsignificant differences in Occipitotemporal/Pattern vision and Parietal/Spatial cognition.

左侧外侧裂区和颞叶中部存在显著的差异。前额叶与额叶侧部和前扣带回之间也具有显著差异。而枕颞叶和顶叶之间的差异较小,且没有显著性。

The results showed that the cold stress could promote accumulation of Fpro in the leaves of Saccharum spontaneum L. and Sclerostachya. And when treated 3~0℃ cold stress, the content of Fpro increased with treating time, but it only increased in a short time when treated with lower temperature. Spraying sugar solution would boost the effect of cold stress. Fpro was mainly synthesized in the leaves of S. spontaneum L. and rapidly was transported to the stem and root.

结果表明,低温处理会引起叶片中Fpro含量增加,其中3~0℃低温处理时叶片中Fpro含量随处理时间延长而递增,而更低温处理只能引起Fpro含量短期内增加;外施蔗糖溶液能增强低温处理的效果;割手密叶部是合成Fpro的主要部位,Fpro在叶部合成后迅速转运到茎和根。

The resuits showed that there was significant difference of SPAD among different leaves under same nitrogen level.

结果表明,在同一施氮水平下,小麦植株不同叶片SPAD值及光舍速率均为:旗叶〉倒二叶〉倒三叶〉倒四叶,说明小麦叶片叶绿素含量及光舍速率在植株上的分布特征相对固定,受施氮水平的影响较小。

Leaves 10-20, red, spirally arranged, imbricate, scaly, longitudinally striate when dry; basal leaves on scape broadly ovate, ca. 1 cm; middle leaves oblong, ca. 2 cm; apical leaves subspatulate, 3-3.5 cm, subtending inflorescence.

叶10-20,红色,螺旋状排列,覆瓦状,有鳞,纵向干燥时具条纹;花葶上的基生叶宽卵形,约1厘米;中间叶长圆形,约2厘米;顶端叶近匙形的,3-3.5厘米,着生花序。

The results showed: after local leafhoppers were inoculated with RDV- SX isolate, RDV- LQ isolate, the vector viruliferous rates were similar as 84 % and 75% respectively,but the rice incidence rates were dissimilar as 28.1% and 2.8 % respectively.

研究表明:用本地黑尾叶蝉分别接种RDV本地分离物和云南分离物,斑点杂交显示介体带毒率相似,分别为84%、75%,但生物学接种结果差异相当大,分别为28.1%,3.8%,另外斑点杂交显示云南病区的黑尾叶蝉带毒率为88%,说明介体叶蝉的传毒能力具有地域性,介体叶蝉带毒率与传毒能力也存在一定差异。

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