STSとスクロースの組み合わせ前処理がデルフィニウム切り花の品質と花持ちに及ぼす影響(収穫後の貯蔵・流通)  [in Japanese] Effects of Pulse Treatments with Sucrose in Combination with STS on the Quality and Vase Life of Cut Delphinium Flowers(Postharbvest Physiology & Technology)  [in Japanese]

ベラドンナ系デルフィニウム切り花において,チオ硫酸銀錯塩(STS)にスクロースを組み合わせた前処理が,切り花の品質と花持ちに及ぼす影響について調査した.ベラドンナ系デルフィニウム'ボルクレード'および'空のワルツ'の切り花を0.2mM STSに0,2,4,6および8%スクロースを組み合わせた溶液に処理した.その結果,'空のワルツ'の花持ちを除いて,STSにスクロースを組み合わせた処理では,STS単独処理に比べて処理後に開花した小花の花色発現の向上,花径の増大,花持延長効果がみられた. STSに4%スクロースを組み合わせた溶液で処理し,輸送シミュレーション(10℃,48時間)後においてもこれらの効果は確認された.さらに,切り花重量を高く維持し,花穂上部の曲がりを顕著に抑制した.

Effects of pulse treatment with sucrose in combination with silver thiosulfate complex (STS) on the quality and vase life of cut Delphinium flowers were investigated. Cut flowers of Delphinium Belladonna 'Ballkleid' and 'Sky waltz' were treated with 0, 2, 4, 6 and 8% sucrose in combination with 0.2 mM STS. Treatment with sucrose in combination with STS significantly improved pigmentation of flower color, increased floret size and extended vase life compared to that with STS alone except for the vase life of 'Sky waltz'. These positive effects by STS and 4% sucrose were remarkable when cut flowers were held at 10℃ for 48 h to simulate long-distance transport. The combined treatment increased the fresh weight of cut flowers and prevented bending of upper flower stalks, and thus improved their plant forms.