Effects of Shading, Potting Media, and Plant Growth Retardant Treatment on the Growth and Flowering of Spiranthes sinensis
2003
Son, H.Y. | Chae, S.C. (Kong-Ju National University, Yesan, Republic of Korea)
The effects of shading, potting media and some plant growth retardants on the growth and flowering of Spiranthes sinensis was investigated to improve the production and quality of pot plant. The shading levels were full sunlight, 30%, 50% and 70% of full sunlights respectively. The kinds of potting media used were mixed soil, leaf mould and sand, burnt chaff, sphagnum moss, pumice and potting media. Plant growth retardants were foliar sprayed as follows: paclobrtrazol was with the concentration of 0.5, 2.5, 5.0, 10 mg L-1, ancymidol with 1.0, 5.0, 10, 20, mg L-1, and both cycocel and daminozide with 100, 200, 500, 1000 mg L-1. Fifty percent shading level showed the longest length of plants. The number of leaves, leaf oength and chlorophyll contents increased as shading level increased. Full sunlight increased leaf width and the number of nodes.
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