Elevated CO2 had little effect on biomass allocation with root weight ratio and leaf weight ratio tended to increase but stem weight ratio and petiole weight ratio decrease. 生物量分配无明显变化,但是高CO。下菱幼苗的根重比和叶重比(LWR)有升高的趋势,茎重比和叶柄重比则有降低的趋势。
Comparison was made between the nutritive value and water content of different Phleum pratense varieties based on indices including LWR ( leaf weight ratio ), wet to dry weight ratio, and hay yield. 以猫尾草(Phleumpratense)不同品种在各试验点的茎叶比、青干比、草产量等指标为基础,对各品种的营养价值和含水量进行了比较。
The results showed that ( 1 ) drought significantly decreased the single leaf area, leaf area ratio, leaf weight ratio, and individual biomass of seedlings. The root weight ratio was significantly higher than the control; 结果表明:(1)干旱处理显著降低了单叶面积、叶面积比和叶比重,从而也降低了单株生物量,但根比重却较对照组有显著上升;
The boron deficiency plant appears inter-venial chlorosis, thickening, crisping leaves and increased leaf weight ratio ( LWR ). 缺硼使叶重比(LWR)(LWR)提高和叶片脉间失绿、变厚、变脆。
The regular of leaf weight ratio ( LWR ) was unimodal curve, reached a maximum value then decreased gradually, and became steady until later growth stage. 在玉米生长发育过程中叶重比(LWR)(LWR)呈单峰曲线变化,于拔节期达最大值后逐渐下降,至生育后期变化基本平稳。