パクロブトラゾールの処理と水ストレスがポンカン (Citrus reticulata Blanco) の樹体発育と光合成に及ぼす影響

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site Web Site 被引用文献2件 参考文献34件

書誌事項

タイトル別名
  • Relative Effects of Growth Retardant (Paclobutrazol) and Water Stress on Tree Growth and Photosynthesis in Ponkan (Citrus reticulata Blanco).
  • Relative effects of growth retardant pa

この論文をさがす

抄録

The effects of water stress and/or chemical growth retardant, paclobutrazol, applied either as foliar spray or soil drench, on photosynthesis, tree vegetative and reproductive growth in young ponkan trees (Citrus reticulata Blanco cv. Yoshida) were evaluated. Paclobutrazol was applied when spring shoots were about 5 mm in length, either as an 840 ppm foliar spray or as a soil drench (0.5 g active ingredient per tree). Soil water stress of up to pF 2.95 was gradually imposed on the trees before re-watering. Water stress improved fruit set, whereas paclobutrazol reduced it. The proportion of abnormal flowers was increased by applying paclobutrazol without water stress. Abnormal flowers were reduced when paclobutrazol was applied in combination with water stress. Tree height increased about 14% for soil drench and 60% for foliar applied paclobutrazol based on initial heights at beginning of the experiment. Water stress caused up to 20% reduction in leaf expansion, reduced photosynthesis, and moderately reduced tree growth. Application of paclobutrazol ameliorated photosynthetic reductions associated with water stress, by maintaining higher photosynthetic and transpiration rates during water stress and ensuring quicker recovery after re-watering.

収録刊行物

  • 園芸学会雑誌

    園芸学会雑誌 67 (1), 28-34, 1998

    一般社団法人　園芸学会

被引用文献 (2)*注記

もっと見る

参考文献 (34)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ