赤霉素对云南省6种常见茄科砧木种子萌发的影响

Effects of GA on Seeds Germination of Six Common Solanaceae Rootstocks in Yunnan Province

以水茄、红茄、大苦子、小苦子、刺茄、超级托鲁巴姆6种云南常见茄科砧木种子为材料,采用不同浓度梯度GA3处理种子并统计其动态发芽率和发芽势,进而分析不同浓度GA3对砧木种子萌发的影响。试验结果表明,与对照相比,GA3浓度为200~400 mg/L时,均能提高6种供试砧木种子的发芽率和发芽势;GA3浓度为200~600 mg/L时,水茄、红茄、刺茄种子的发芽率、发芽势随浓度升高而升高;水茄和刺茄种子萌发的最佳GA3浓度为1000 mg/L,红茄为600 mg/L,大苦子、小苦子和超级托鲁巴姆为400 mg/L。

Taking 6 kinds of rootstock seeds of Solanaceae in Yunnan as materials(Solanum torvum Swartz.,S.integrifolium Poir.,Xiaokuzi,Dakuzi,S.indicum L.and S.torvum),the paper studied the effects of different concentrations of gibberellin acid(GA3)on seed germination,by counting the dynamic germination rate and germination potential.The results showed that GA3 with concentration of 200-400 mg/L could improve the germination rate and germination potential of the 6 rootstock seeds compared with those of the control.When GA3 concentration was 200-600 mg/L,the germination rate and germination potential of seeds of S.torvum Swartz.,S.integrifolium Poir.and S.indicum L.increased as the concentration of GA3 increased.However,the optimum GA3 concentration was 1000 mg/L for seed germination of S.torvum Swartz.and S.indicum L.,600 mg/L for seed germination of S.integrifolium Poir.,400 mg/L for seed germination of Xiaokuzi,Dakuzi and S.torvum.