LEAF-AREA DEVELOPMENT IN FIELD-GROWN SOYBEANS
LEAF-AREA DEVELOPMENT IN FIELD-GROWN SOYBEANS
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DOI：
10.2134/agronj1984.00021962007600010034x
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发表时间：
1984-01-01
期刊：
影响因子：
2.1
通讯作者：
SINCLAIR, TR
中科院分区：
文献类型：
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作者：
SINCLAIR, TR
叶面积是作物光截获的关键，因此对作物产量有很大影响。本研究试图通过分两个阶段考察大豆叶面积的发育过程来表征大豆叶面积的发育。首先，在野外条件下，评估了塑粒指数随温度的增加速度。在阿雷东多细沙(壤质硅质高温高温古砂)上对7个品种进行了3个种植季节的研究。在基温为9℃-11℃时，塑化指数对温度的增长速率与温度呈线性关系。对于大多数品种来说，C。其次，建立了一个利用塑体指数预测植物叶面积的异速生长模型。不同系数的同一模型对所有品种都适用。建立了一种估算模型系数的简化方法，并用塑化体指数对叶面积进行了较好的预测。
Leaf area is critical for crop light interception, and thereby has a substantial influence on crop yield. In this research an attempt was made to characterize the development of soybean leaf area by examining the process in 2 phases. First, the rate of increase of plastochron index as a function of temperature was evaluated under field conditions. A total of 7 cultivars was studied during 3 cropping seasons on Arredondo fine sand (loamy siliceous hyperthermic Grossarenic Paleudalf). A linear response was confirmed in the rate of increase in plastochron index to temperature with a base temperature of 9.degree.-11.degree. C for most cultivars. Second, an allometric model for predicting plant leaf area from plastochron index was developed. The same model with differing coefficients worked well for all cultivars. A simplified procedure for estimating the coefficients of the model was developed and resulted in good predictions of leaf area from plastochron index.