main root

The main root of Prunus armeniaca is remarkable taproot type, and root vigor is strong.

山杏苗木的根系活力较强，受容重的影响较小。

The morphological indexes include plant height, leaf area, the length of the main root, the quantity of the first branched root, the length of the longest branched root, the root volume and the dry weight of root and plant, et al.

测定的形态指标包括株高、叶面积、主根长度、侧根数、最长侧根长度、根系体积、根干重和地上部分干重等；

Results: The yield of polysaccharide from the fibrous roots was close ( about 11.7%) to the main root.

结果：参须中的西洋参多糖得率与主根中多糖的得率相近，以干燥品计算在11.7%左右，并含有多种微量元素；

Compared with the ZM treatment, the SM treatment significantly increased the leaf area per plant, main root length, gross root length and root dry weight per plant of rice.

旱作条件下，稻草覆盖旱作的水稻分蘖数、叶面积、根系生长明显优于裸地旱作。