The esterase isozyme in leaf at acicula forming stage and the peroxidase isozyme in peanut leaf at pod producing stage was related to the formation of coarse protein and coarse fattiness of seed.

• 下针期花生叶片的酯酶同工酶与结荚期叶片过氧化物酶同工酶与其果仁粗脂肪、粗蛋白的形成有关；