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采用定期取样的方法，研究了矮生菜豆ＳＧ２５９和Ｐｒｏｖｉｄｅｒ的豆荚和种子的生长发育特点．结果表明：豆荚和种子长、宽、厚、鲜重、干重的生长速率随着开花后时间的延长而下降，除干重外，豆荚和种子的生长量均在达到最大值后，由于失水而下降；种子的生长落后于豆荚；种子和豆荚干重在开花后呈Ｓ型曲线生长，种子长以及豆荚和种子的宽、厚、鲜重呈抛物线生长，而豆荚长度呈现双曲线的生长特点，根据散点图配合的生长曲线方程的回归关系成立．根据本试验结果，认为矮生菜豆嫩荚适宜采收期在开花后２０～２５ｄ左右，而采种应在开花３５ｄ以后采收
Using regular sampling methods, the growth and development characteristics of pods and seeds of dwarf bean SG259 and Provider were studied. The results showed that the growth rate of pods and seeds in length, width, thickness, fresh weight and dry weight decreased with the prolongation of flowering time. Except for dry weight, the growth of pods and seeds reached the maximum, Water and drop; seed growth lags behind pods; seed and pod dry weight S-curve growth after flowering, seed length and pods and seeds of wide, thick, fresh weight parabolic growth, and pod length showed hyperbolic growth Features, according to the scatter plot with the growth curve equation regression relationship established. According to the results of this experiment, it is considered that the appropriate harvesting period of green bean pod should be about 20 ~ 25 days after flowering, and the seeds should be harvested 35 days after flowering