The results showed that the alfalfa root growth depended both on time of growth beginning of the plant and the growth of branches and leaves above the ground.
结果表明：紫花苜蓿的主根伸长下扎不但与建株的时间长短有关，也与其地上枝叶的生长关系密切。
This experiments studies on the changes of plant endogenous hormones of different alfalfa cultivars with different root regeneration ability(RRA)before and after their taproot were pruned.
研究根系发育能力不同的苜蓿品种在主根受伤后内源激素的变化。
Fresh root weight and nodule number of alfalfa with lime application were higher than those of the control group.
施用石灰后，紫花苜蓿的根鲜重、根瘤数、株高、鲜重、干重、分枝数都高于对照。
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