Effects of Different Reagents on Seed Germination of Low-temperature Stored Taiwania Flousiana
In order to explore the suitable method of improving seed vigor and promoting seed germination,the seeds of Taiwania flousiana stored in 4℃for 365 days were taken as the materials for researching on the influence of soaking of seeds with the reagents of different concentrations on the germination of the seeds and the growth of the seedlings.The results show that:The 6 kinds of reagents all played a role of promotion in the germination of the seeds and the growth of the seedlings.There were differences in soaking with the same kind of reagent of different concentrations.Compared with soaking seeds with fresh water control check(CK),the average germination rate,germination potential,germination index and vigor index of the seeds soaked with NAA and KNO3 were significantly improved.The germination rate of the seeds soaked with 12 mg/L NAA was the highest,reaching 35.56%,about 2.7 times of those with CK;the germination potential,germination index and vigor index of the seeds soaked with 4mg/L NAA were the highest,respectively reaching 14.44%,1.94 and 2.70,being about 13.0,3.5 and 4.0 times of those with CK.The average height of the seedlings soaked with NAA,KNO3 and NH4 NO3 was significantly higher than that of seedlings soaked with CK and the growth with 12 mg/L NAA was the highest,reaching 1.48 cm,about 1.2 times of those with CK.The average root length of the seeds soaked with NAA,KNO3 and Ca(NO3)2 was also significantly longer than that of the seeds soaked with CK and the root length with 12 mg/L NAA was the longest,reaching 0.98cm,about 1.6 times of those soaked with CK.Soaking the seeds with NAA and KNO3 are beneficial to the germination of the seeds and the growth of the seedlings of the low-temperature stored T.flousiana.As for the germination and the growth of the seedlings of the seeds,soaking with 12mg/L NAA was the optimal.The results of this study will provide a reference for the sowing propagation of the low-temperature stored T.flousiana seeds.
Taiwania flousianaexogenous compoundssoaking seedsgermination rategermination potentialgermination index
万方数据
维普
