Effects of Different Hormones on Seed Germination Characteristics and Seedling Growth of Xanthoceras sorbifolia
MA Xin
JIANG Jiyuan
DONG Peng
LI Ming
Abstract：In order to screen the optimum hormone and soaking time,this paper investigated the effects of indoleacetic acid (IAA),naphthalene acetic acid(NAA) and ABT growth regulators on the seed germination character and seedling growth of Xanthoceras sorbifolia.The seeds were soaked in three different hormones at same concentration for different time,respectively,the germination energy,germination percentage,germination index and growth status were measured.Results showed that the germination energy,germination percentage and germination index under the three hormones were significantly higher than the control(P ＜ 0.05),and ABT treatment was the best of the three.On the fifth day,the germination energy,germination percentage and germination index of ABT treatment were 79.1％,87.6％ and 326.7,respectively.In addition,hormones had a promotion effect on the seedling growth,and ABT treatment was also better than NAA and IAA treatments.Five days of soaking seeds later,the sprout height,ground diameter,root length and leaf numbers were 13.4 cm,2.4 mm,12.5 cm and 13.At the same time,hormones significantly increased the aboveground fresh and dry biomass,underground fresh and dry biomass of Xanthoceras sorbifolia seedlings(P ＜0.05),and ABT was better than others as well.Under ABT treatment,the seed germination characteristics and growth index were the best of the three,and the optimum soaking time was 5 d.
Keywords：Xanthoceras sorbifoliahormone treatmentsseed germination characteristicsseedling growthbiomass
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 104-107 )