据辽宁省农科院宋书宏等对辽豆１０号的试验，在豆苗的子叶节或真叶节处摘心，可使株高比不摘心对照降低１１１～１１９ｃｍ，单株总节数平均增加１６０～１７２节，分枝增加１０～１４个。子叶节摘心处理的，双主茎率为８１％，单主茎率为１９％；真叶节摘心... According to Liaoning Provincial Academy of Agricultural Sciences Song Shou-hong and other experiments on the Liao bean No. 10 in the cotyledons or true leafy section of the pestle at the heart, can make the plant height than the non-topping control reduced 11  11 ~ 11  9cm, total plant section An average increase of 160 ~ 17  2 section, branch increased 1  0 ~ 1  4 months. Cotyledonary node topping treatment, double main stem rate was 81%, single main stem rate was 19%;