Effects of three growth regulators on the seedling growth of Hippeastrum hybridun

doi:10.14088/j.cnki.issn0439-8114.2019.08.022

Abstract

Abstract: The effects of different concentrations of three growth regulators salicylic acid, gibberellin and naphthalene acetic acid on the bulb size, leaf growth, chlorophyll content and root growth of the seedlings of Hippeastrum hybridum ‘Double Dragon’ were studied. The main results were as follows：the rational spraying of growth regulators（salicylic acid and gibberellin） promoted the growth of the leaf width,leave length and the bulb, and the effect of spraying 100 mg/L salicylic acid about 6 times was the best. Spraying salicylic acid and gibberellin 3 times significantly increased the chlorophyll content, of which gibberellin was the most obvious. The optimum concentration （50 mg/L） of naphthalene acetic acid was the most significant factor in promoting the root number of the seedlings.

Key words: Hippeastrum hybridum, seedling, growth, growth regulators

CLC Number:

S513

ZHOU Mo-hua, WU Xiao-ye, YUAN Jia-ming, GUO Xiang. Effects of three growth regulators on the seedling growth of Hippeastrum hybridun[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(8): 97-101.

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