不同栽培措施对天麻产量和产量结构的影响研究

Effects of Different Cultivation Measurements on Yield and Yield Components of Gastrodia elata Bl.

[目的]研究遮阳网的遮阴度和高度以及覆盖物的种类和覆盖厚度对天麻产量和产量结构的影响。[方法]在70％与90％遮光率的遮阳网和2．5、2．0m高度下，测定平地栽培天麻的产量及产量构成以及树叶和沙土分别在3、5、10cFn的覆盖厚度下平地栽培天麻的产量及产量构成。[结果]结果表明：在7～9月份高温季节，采用90％遮光率的遮阳网能有效降低天麻生长层温度，对天麻产量的提高效果明显；青冈树叶覆盖5cm的厚度是最佳的覆盖处理。[结论]在平地栽培情况下，遮阳对天麻的产量及产量结构影响很大.

[ Objective]Tbe research aimed to study the effects of differents cultivation measurements on yield and yield comonents of Gostrodia elam BI.. [Method]Yield and yield components of G. data Bl.under the eondition of 70% and 90% stmshine-sbading nets at 2.5 m as well as 2.0 m heights,and under the condition of 3 cm,5 cm as well as 10 cm coverages with tree-leaves and sandy soil were measured, respectively. [Result]The results showed that 90% sunshine-shading net could obviously reduce the temperature at growth layer of G. data B1. during high temperature, season,which was beneficial to increase the yield of G. elata Bl.end coverage with tree-leaves at 5 cm was the best treatment anloiag all the coverages. [Conclusion]Under the condition of flat-growing, shading treatment bad great effects on the yield and yield components of G. elata B1..