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以玉米自交系Mo17种子为试材,对不同老化水平的玉米种子进行氯化钙(CaCl2)、抗坏血酸(AsA)、聚乙二醇(PEG)、青霉素(Penicillin)和赤霉素(GA3)修复处理。结果表明,500 mg/L AsA对Mo17老化玉米种子的活力修复效果明显;0.015 mg/LCaCl2对不同老化程度的玉米种子修复范围较宽,修复作用较好;100 mg/L Penicillin处理只对中活力玉米种子有修复作用;500 mg/L GA3对不同老化程度玉米种子的修复作用不明显;20%PEG处理对老化玉米种子没有修复作用,且加速了高活力种子的活力衰退。500 mg/LAsA处理老化玉米种子其修复效应明显,修复作用比较温和,在生产中能提高发芽率70%以下的玉米种子活力,是较为理想的修复剂。
Maize inbred lines Mo17 seeds were used to test the effects of CaCl2, AsA, PEG, Penicillin and GA3 on maize seeds with different aging levels. Repair processing. The results showed that the effect of 500 mg / L AsA on the vitality of Mo17 aged maize seeds was obvious. The coverage of maize seeds with different ages of 0.015 mg / L NaCl was better and the restoration effect was better. The treatment with 100 mg / L Penicillin Maize seeds had a repair effect; 500 mg / L GA3 had no obvious effect on the restoration of maize seeds with different degrees of aging; 20% PEG treatment did not repair aged maize seeds and accelerated the vigor decline of high-vigor seeds. The aging effect of 500 mg / L AsA on aged maize seeds is obvious, and its restoration effect is relatively mild. It can improve the seed vigor of maize seeds with germination rate below 70% in production, which is an ideal repair agent.