Reponse of Rooting Traits of Machilus longipedicellata  Rooted Cutting to IBA,NAA and IAA(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Reponse of Rooting Traits of Machilus longipedicellata  Rooted Cutting to IBA,NAA and IAA

Author(s):: SUN Ang1; LI Lianfang2; GUO Liang3; SU Ning4; (1.Shangqiu Academy of Agriculture and Forestry Sciences,Shangqiu,Henan 476000;2.Forestry College，Southwest Forestry University,Kunming，Yunnan 650224;3.China Communication Construction Corporation First Highway Consultants Co.Ltd.,Xi′an,Shaanxi 710000;4.Dali Forestry Bureau,Dali,Yunnan 671000)

Keywords:: Machilus longipedicellata; cutting propagation; plant growth regulator

Abstract:: Machilus longipedicellata is one of the endemic tree species in the southwest of China,and it is also an excellent greening tree species.In order to provide scientific basis for exogenous hormone treatments on Machilus longipedicellata rooted cutting,the U7(76) uniform design was applied to implement the experiment of the effects of IBA,NAA and IAA on the tree′s rooting traits.The results showed that the mean rates of the callus and rooting,root number,the lengths and basal diameters of the first lateral roots (FLR) were 78.9%-85.6%,84.5%-92.2%,2.7-3.5 root per seedling,9.7-14.6 cm and 1.22-1.58 mm,respectively,after the experiment implemented for the 90 days;there were 85.5%,3.5 root per seedling,1.58 mm and 13.5 cm of mean callus and rooting rates,root number,the FLR′s diameter and length,respectively,for the treatment combination (TC) of the 0.75 g?L-1 IAA+0.4 g?L-1 IBA,which was the best TC of comprehensive rooting traits.It was significantly positive correlation between the rates of the rooting and callus (P≈0.000<0.01) with related model of Y=26.846+0.629X (R2=0.506,R2Adj=0.484).

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Last Update: 2017-08-31