A preliminary study on establishment of hydroponic culture system for Phyllostachys pubescens seedlings

Abstract

To establish a solution culture protocol for hydroponic culture experiments with Phyllostachys pubescens(moso bamboo) seedlings,comparisons of leaf-area,increased biomass,and reflectance spectral characteristics were made using Yoshida nutrient solution of 1/4,1/2,1,3/2 and soil culture as a control(ck).Also,experiments for N with 1.0,2.0,3.0,4.0,and 5.0 mmol·L-1 treatments;for P with 0.5,1.0,1.5,and 2.0 mmol·L-1 treatments;and for K with 0.5,1.0,1.5,2.0,and 2.5 mmol·L-1 treatments using univariate and multivariate statistics as well as three level(N:2,3,4 mmol·L-1;P:0.5,1.0,1.5 mmol·L-1;K:0.5,1.0,1.5 mmol·L-1) Orthogonal Tests [L9(33)] were conducted.Results showed that leaf-area,increased biomass,and reflectance spectral characteristics of with a 1/2 Yoshida nutrient solution was superior to other strengths with an increaseded biomass of 97.9% of compared to ck.For N the 3.0 mmol·L-1 treatment was superior;For P 1.0 mmol·L-1 were was superior;and for K 1.5 mmol·L-1 was superior.When N,P,and K levels were tested together using orthogonal testing,optimum seedling growth was with 4.0 mmol·L-1 N,0.5 mmol·L-1 P,and 1.0 mmol·L-1 K.[Ch,12 fig.6 tab.35 ref.]