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1)  leaf age
叶龄
1.
Dynamic laws of chlorophyll fluorescence parameters in needle leaves of different leaf ages and locations of Pinus armandii;
华山松不同叶龄、部位针叶叶绿素荧光参数的动态变化规律
2.
Host leaf age preference of adult Bemisia tabaci (Homoptera: Aleyrodidae) and its relationship with offspring performance;
烟粉虱成虫对黄瓜叶龄的喜好性及与后代发育适合度间的关系
3.
Effects of canopy position and leaf age on photosynthesis and transpiration of Pinus koraiensis;
冠层部位和叶龄对红松光合蒸腾特性的影响
2)  leaf stage
叶龄
1.
Glyphosate rate and perennial sowthistle leaf stage also affected deadrootstock length,though to a lesser extent.
模型解析结果表明,草甘膦对芽根的防除长度受芽根本身长度影响最大,其次为草甘膦用药量和苣荬菜叶龄大小。
2.
The influence of leaf stage on the performance of nicosulfur.
杂草叶龄对烟嘧磺隆的药效有明显的影响 ,3~5叶期施药 ,防效高达 89。
3)  Leaf ages
叶龄
1.
Relationship between photosynthesis and leaf ages of grapevine under enhanced ultraviolet-B radiation;
UV-B辐射增强下葡萄叶片光合特性与叶龄关系的研究
2.
Study on the Effects Induced by Photoperiod to Different Leaf Ages before Flowering in Adzuki Bean;
红小豆花前不同叶龄光周期诱导效应研究
3.
According to random sampling data of small Chinese cabbage for different sowing date in Shanghai, leaf ages are estimated by growing model of plant and effective acumulated temperature from 9℃ to 25℃ in the growing period of small Chinese cabbage.
根据对不同播种期鸡毛菜的抽样测定资料,采用植物生长模型结合鸡毛菜生产期间9~25℃的有效积温对叶龄进行估算,叶龄估算的绝对误差在0。
4)  foliar age
叶龄
1.
Experimentation was took at Jilin Agriculture University s rice product experiment base, setting by two factors: the density and the foliar age when transplanted ,every factor has 4 level ,plant density :A 50cmx50cm(40 thousand aperture/ hm~2);B 30cmx30cm (110 thous.
试验于2003年在吉林农业大学水稻生产实验基地进行,试验设定两个因素,即密度和移栽叶龄,每个因素4个水平,种植密度:A为50cm×50cm(4万穴/hm~2);B为30cm×30cm(11万穴/hm~2);C为30cm×18。
5)  leaf age and leaf position
叶龄和叶位
6)  Symptomatic leaf age
发病叶龄
补充资料:叶文龄
叶文龄 叶文龄   明代医家。字德征,号石峰子,仁和(今浙江杭州)人。少习举子业,因不得志而改学医。后经礼部屡试,成绩优异而入太医院,初任吏目,后升院判。后因母病辞退。积二十年之经验,著成《医学统旨》八卷,内容涉及杂病妇儿诸科,现存多种版本。
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