植株感染病毒后，不同叶龄的叶片光合速率都会降低。
After plant infect with the virus, a photosynthetic rate of leaf of different leaf-age will lower.
在盆栽试验中，二氯喹啉酸对不同叶龄玉米的敏感性不同。
The sensitivity of quinclorac to corn in different growth stages was studied through potted experiment.
不同叶龄或不同叶位稻叶的光合速率与叶绿素含量成正相关。
The photosynthetic rate was positive interrelated with the chlorophyll content in rice leaf during different leaf-age or at different leaf-order.
在强化栽培条件下，不同叶龄(2—5叶龄)的秧苗移栽对其产量的影响很小。
In SRI condition, transplant of different leaf age (from 2 to 5 leaf age) seedlings has very small effect on grain yield.
对模型进行解析，找出了影响五区小麦产量较大的因子是氮基肥、不同叶龄追施氮肥和密度。
The main factors influencing the wheat yield in downland were initial nitrogenous dressing, the amount of nitrogenous fertilizer applied for different leaf age and close fertilization.
不同品种的叶龄指数所对应的雄、雌穗分化各时期是基本一致的。
Leaf number index right should the spike differentiation all stages within different variety were very similar.
结果表明，不同种植密度下株高、叶龄、LAI和干物质积累均存在差异，且产量受种植密度影响较大。
The results indicated that plant height, leaf age, LAI and accumulation of dried matter existed difference under different sowing density, especially sowing densities had the great effects on yield.
对春小麦开花后的不同叶位及叶龄叶片在衰老过程中的相关生理生化指标进行了分析。
Interrelated physiological and biochemical index in the course of senescence are analysed about spring wheat's different leaf arrangement's and leaf age's leaf after blossom.
1985年，研究了群体水培和大田栽培条件下水稻不同类型品种根系活力的叶龄进程。
In 1984-1985, the root activities with leaf-age-progress was investigated in different rice varieties cultivated in nutrient solution and in field.
以‘解放钟’等5个枇杷品种的2月龄实生苗为材，在水分胁迫条件下，测定了叶、茎尖、活动根等不同器官的SOD、POD活性、脂质过氧化产物MDA含量的变化。
Under water defficiency stress, activities of SOD and POD and content of MDA in leaves, shoot tips and active roots of 5 2-month-old loquat seedlings were measured.
叶龄模型则用来模拟逐日温度对叶龄发育的影响，它可以预测不同叶位的出现日。
The latter is used to simulate the effect of daily temperature on leaf development.
结果表明：印楝种源间光响应曲线因叶龄和冠层部位的不同而呈现不同的特征格局；
The results showed that light response curves of the four provenances exhibited different characteristics with different aged leaves and positions within the tree crowns.
结果表明：印楝种源间光响应曲线因叶龄和冠层部位的不同而呈现不同的特征格局；
The results showed that light response curves of the four provenances exhibited different characteristics with different aged leaves and positions within the tree crowns.
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