The characteristic of growth and photosynthesis of Pleioblastus pubescens Nakai growing in the different light conditions.

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  • 異なる光環境で生育するケネザサ（Ｐｌｅｉｏｂｌａｓｔｕｓ　ｐｕｅｓｃｅｎｓ　Ｎａｋａｉ）の成長と光合成特性
  • 異なる光環境で生育するケネザサ(Pleioblastus pubescens Nakai)の成長と光合成特性
  • コトナル コウカンキョウ デ セイイク スル ケネザサ Pleioblastus pubescens Nakai ノ セイチョウ ト コウゴウセイ トクセイ

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Abstract

Rhizomes of Pleioblastus pubescence were planted under the different light conditions of 100%, 10%, 5%, and 1% as relative light intensity. After culm sprouting, length, diameters, leaf number, standing crop, diurnal photosynthetic rates, and photosynthetic rates under different light intensity were measured by treatments. The number of emerging culms was larger and the sizes were smaller in high light intensity conditions than in low light conditions. Thickness of leaves and specific leaf area were the largest in 100% light conditions. Photosynthetic rates a day were highest in 100% light condition and lowest in 1% light condition. Standing crop in 100% condition was larger than initial standing crop of planted rhizome, those in 10% and 5% conditions were similar with initial one, and that in 1% condition was smaller.

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