生长素类物质对东云叶插生根的影响

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中图分类号 S682.33 文献标识码A 文章编号 1007-7731(2025)23-0041-05

DOI号 10.16377/j.cnki.issn1007-7731.2025.23.010

Effects of auxins on the rooting of Echeveria agavoides leaf cuttings

SHAO Huazheng YE Shuiying

(SchoolofBiologicaland Environmental Engineering,Jingdezhen University,Jingdezhen 33340o,China)

AbstractTo explore the suitable types and concentrations of auxins for the rooting of Echeveria agavoides leaf cuttings,E.agavoides was usedas the experimental material,a two-factor experiment was conducted using the soil culture method.FactorAwasthetypeofauxin,with3levelsset: A1(indole-aceticacid,IAA),A2(indole-butyricacid, IBA),and A3 (naphthalene-acetic acid,NAA).Factor B was the auxinconcentration.4 levels,B1 (5O mg/L),B2 (100 mg/L),B3( 150mg/L ),and B4 (2OO mg/L), were set.Clear water was used as the control (CK), which are A1,A2, and A3 respectively,and corrsponding clear watercontrols (CK1,CK2,and CK3)wereset.There werea total of 15 treatments. The results showed that IAA,IBA,and NAA all promoted the rooting of E . agavoides leaf cuttings: in the IAA treatment group 50-200mg/L ),the average number of roots ranged from 3.8 to 18.0, the average root length from 10.78 to 16.33 mm,the maximum root length from 22 to 29 mm,the rooting rate from 40% to 80% ,and the root system effctindex from 8.193 to 58.788,among which the treatment A1B2achievedthe highest average numberof rots, average root length,and root system effect index; in the IBA treatment group (50-200mg/L ),the average number of roots ranged from 1.2 to11.4, the average root length from 5.25 to 13.77mm ,the maximum root length from 12 to 41 mm, the rooting rate from 20% to 100% ,and the root system effect index from 1.260 to 31.396,with the treatment A2B4 showing thehighestvalues inallindicators includingaveragenumberofroots,averagerootlength,maximumrootlength,rooting rate,and root system effect index; in the NAA treatment group (50-200mg/L ),theaverage number of rootsranged from 6.4 to 24.0,theaveragerotlength from 3.49to15.25mm,themaximumrotlength from7to27mm,therooting rate from 80% to 100% ,and the root system effect index from 4.467 to 73.200,among which the treatment A3B1 exhibited thehighestaverage numberofrots,averagerootlength,themaximumrots length,androotsystem effect index.The average root length and average root number of E . agavoides leaf cuttings reached the peak under treatments A1B2 and A3B1,while ataining the maximumunder treatment A2B4.In conclusion，5O mg/L NAA (treatment A3B1)and 100 mg/L IAA (treatment A1B2) exhibited good promotive effcts on the rooting of leaf cuttings of E . agavoides. Considering production cost and practical application comprehensively,the 50mg/L NAA treatment showed the optimal rooting effect on E . agavoides leaf cuttings and could be promoted for practical production.

Keywords auxins;Echeveria agavoides;leaf cutting;succulent

多肉植物具有种类繁多、形态优美、颜色丰富等特点，是近年来较受欢迎的观赏植物之一。（剩余7005字）