閉鎖型苗生産システムにおける栽植密度および気流速度がセル成型トマト実生苗の生育およびその均一性に及ぼす影響

DOI 機関リポジトリ 日本農学文献記事索引 Web Site 被引用文献2件 参考文献22件

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  • Effects of Planting Density and Air Current Speed on the Growth and That Uniformity of Tomato Plug Seedlings in a Closed Transplant Production System
  • ヘイサガタ ナエ セイサン システム ニ オケル サイショク ミツド オヨビ キリュウ ソクド ガ セル セイケイ トマト ミショウ ナエ ノ セイイク オヨビ ソノ キンイツセイ ニ オヨボス エイキョウ

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Tomato seedlings were grown in plug trays at three planting densities (700, 1100, or 1600 m-2) under two air current speed conditions (0.3 or 0.7 m s-1) either in closed transplant production system or in a greenhouse without air current speed control. The growth and that uniformity of the tomato plug seedlings decreased with an Increase in the planting density in the closed transplant production system. At the higher air current speed, the growth increased without a decrease in the growth uniformity and excessive stem elongation. The growth and that uniformity of seedlings grown in the closed transplant production system were greater than those of seedlings grown in the greenhouse. These results indicate that the closed transplant production system under the higher air current speed condition enabled transplant production using plug trays with higher planting densities than those in the greenhouse. The environments in the closed system and greenhouse were measured and compared. Based on the results, high integrated light intensity and light sources with a high red to far-red ratio in the closed system appeared to be the reasons for the decrease in excessive stem elongation and increase in growth uniformity when compared with those in the greenhouse.

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