Effects of Different Growth Regulators and Soil Substrates on the Rooting of Jasminum sambac Aiton Cuttings
[Objective] The purpose of the research was to discuss the conditions suitable for the cutting propagation of Jasminum sambac Aiton. [Method] With lignified and semi-lignified middle and lower segments of 1-year old mature branches of J. sambac as cuttings, the effects of different growth regulators and cutting substrates on the rooting of cuttings were researched. [Result] The root numbers of the cuttings treated with IAA, IBA and NAA and CK were 9.28, 13.53, 2.53 and 5.75 roots resp., their root lengths were 5.44, 6.57, 2.42 and 3.69 cm resp. and their rooting rates were 81.30%, 93.00%, 51.30% and 72.00% resp. The rooting rate of the cuttings treated with 500 mg/L IBA was highest, being 92.05%; their roots were most and their root number was 13.61 roots; their roots were longest and their root length was 6.72 cm. The root numbers of cuttings with river sand, vermiculite, river sand + garden soil and garden soil as substrates were 12.85, 11.59 , 9.35 and 0.44 roots resp., their root lengths were 8.54, 5.40, 4.64 and 0.29 cm resp. and their rooting rates were 96.57%, 86.40 %, 80.23 % and 7.35% resp. Taking production cost into consideration, river sand was relatively suitable cutting substrate. [Conclusion] The research supplied technical reference for the cutting propagation of J. sambac .
国家科技期刊平台
NSTL
万方数据
维普
