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本文通过对各季麻不同收获期的产量与7个性状的逐步回归分析表明,单位面积麻茎干重是决定产量的首要因素,其次是麻壳和麻骨干重,麻茎干重与麻骨、麻壳干重和株高呈极显著正相关,与茎粗呈不显著正相关,本文还观察了原麻增长速度以及各季麻的叶面积消长、麻茎解剖和苎麻的生理特性,结果表明,出叶速度、茎高增长高峰和光照强度相适应,麻茎的纤维层、韧皮部、木质部的厚度、单位面积纤维细胞数量、大小和胞壁厚度随着麻茎的生长而增大,但皮层厚度和单位面积纤维细胞数却相反,各季麻功能叶全氮含量在生长过程中的变化趋势是由高而低,而可溶性糖含量的变化趋势却相反,苎麻前期茎高、茎重增加快,生长后期纤维增加快。
Through the stepwise regression analysis of the yield and the seven traits of different seasons, the dry weight of hemp stems per unit area is the primary factor to determine yield, followed by the dry weight of hemp and hemp stems, the dry weight of hemp stems, There was a significant positive correlation between dry weight and plant height of cannabis, but no significant positive correlation with stem diameter. In addition, the growth of crude hemp and the growth and decline of leaf area, hemp and stem anatomy and the physiological characteristics of ramie were observed. The results showed that leaf speed, height of stem height growth and light intensity were suitable. The thickness of fibrous layer, phloem and xylem of hemp stem, the number of fibroblast per unit area, cell wall thickness and cell wall thickness increased with the growth of hemp stem The cortical thickness and the number of fibrous cells per unit area were the opposite. The change tendency of total nitrogen content of functional leaves in all seasons was from high to low while the change trend of soluble sugar content was contrary. In the early stage of ramie, the stem height and stem weight increased Fast, rapid increase in late growth fiber.