NDLI: Effects of difference between day and night temperature and short time temperature fluctuations on the growth of Delphinium grandiflorum L.

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Effects of difference between day and night temperature and short time temperature fluctuations on the growth of Delphinium grandiflorum L.

Content Provider	Semantic Scholar
Author	Sasaki, Kazuya Nishijima, T. Honda, Kazushige Saga, Koichi Sameshima, Masazumi
Copyright Year	2007
Abstract	DIF（昼夜温度差），TD（短時間降温）およびTR（短時間昇温）がシネンシス系デルフィニウム‘ブルーミラー’の生育に及ぼす影響について調査した．草丈は，−DIF（暗期よりも明期の温度が低い）により，+DIF（暗期よりも明期の温度が高い）に比べ42～49％減少した．明期開始前後4時間，10℃のTDは，草丈に影響しなかった．一方，暗期開始後4時間，30℃のTRは，+DIFに比べ草丈を22～33％減少させた．−DIF処理した茎の髄細胞の長径と短径は，いずれも+DIFに比べ約20％減少した．髄細胞数は，垂直方向で+DIFに比べ26％減少したのに対して，水平方向での減少は5％にすぎなかった．シネンシス系デルフィニウムのシュートにおける内生GAとして，GA9とGA24が同定された．GA24濃度は，−DIFでは+DIFよりも低く，DIFはジベレリン代謝を介して茎伸長を制御していることが示唆された．
Starting Page	577
Ending Page	583
Page Count	7
File Format	PDF HTM / HTML
DOI	10.2503/hrj.6.577
Volume Number	6
Alternate Webpage(s)	https://www.jstage.jst.go.jp/article/hrj/6/4/6_4_577/_pdf
Alternate Webpage(s)	https://doi.org/10.2503/hrj.6.577
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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