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本研究以橡胶草种子为实验材料,通过不同植物激素及水盐胁迫处理,对橡胶草种子在处理条件下种子发芽率进行比较分析,探讨橡胶草种子萌发特性。研究结果表明:1)生长调节物质对橡胶草种子萌发影响作用主要表现在萌发第1~3天,不同激素处理,对橡胶草种子萌发影响不显著。2)种子萌发第1~3天,随着PEG浓度的逐渐增加,橡胶草种子的萌发率发芽率较对照略有降低,自第4天起,各处理的种子萌发时间与萌发率与对照无显著差异。3)橡胶草种子萌发对盐胁迫响应较敏感,自0.20%Na Cl处理浓度起,各处理种子发芽率与对照差值均高于10%,橡胶草种子发芽率与盐胁迫处理浓度呈负相关。
In this study, rubber seeds were used as experimental materials. Through the treatment of different plant hormones and water and salt stress, the seed germination rate of rubber seeds was compared and the germination characteristics of rubber seeds were discussed. The results showed that: 1) The effect of growth regulators on the seed germination of Rubus albosus was mainly manifested in the first to third days of germination. The effect of different hormones on the germination of Rubustii was insignificant. 2) Seed germination 1 to 3 days, with the gradual increase in PEG concentration, germination rate of rubber seed germination rate slightly lower than the control, from the 4th day, the germination time of each treatment and germination rate and control no Significant differences. 3) The seed germination of G. bungeana was more sensitive to salt stress. The rate of seed germination and the control difference were all higher than 10% from 0.20% NaCl treatment, and the germination rate of P. vulgaris seeds was negatively correlated with the salt stress .