땅콩의 무효개화를 유제하여 정입율이 높은 재배법을 강구하기 위하여 C-MH를 개화후 24, 28, 31일에 0.2%액, 0.1%액, 0.067%액으로 달리하여 처리한 시험 결과는 다음과 같다. 1. 주경장은 무처리에 비하여 38∼44% 감소되었으나 분지수는 처리시기 및 처리농도에 관계없이 변화가 거의 없었다. 2. 처리후 28일의 개화유제율은 0.2∼0.1%액 처리시 29∼38%, 0.067%액 처리시 22%였다. 3. C-MH처리에 따른 완숙입율(=정입율)은 무처리구(56%)에 비하여 개화후 28일 처리시 55∼59%이고, 이 중 0.1%액 처리구에서 59%로서 3%가 향상되었다. 4. 개화후 28일에 0.1∼0.067%액처리구와 개화후 31일에 0.1%액처리구의 수량이 무처리구와 대등하였다.
C-MH(Choline salt of maleic hydrazide, 39%) has been applied on peanut(Arachis hypogaea L.) plant in 1994∼1995 on three different times of 24 days after flowering (DAF), 28 DAF and 31 DAF and on three different levels of 0.2, 0.1. 0.067%, respectively. Main stem length was noticeably retarded by 38∼44% compared to that of non-treatment. Branch numbers were not changed by C-MH treatments. Ratio of flowering inhibition was 38% in 0.2% concentration and 22% in 0.067% at 28 days after flowering treatment compared to that of control. Ratio of pure seed was slightly enhanced by 3% in 28 DAF treatments. Yield productivity was increased by 7% in 0.1%, at 28 DAF treatment compared to that of non-treatment (3.2MT /ha).