Journal of the Japanese Society for Horticultural Science
Online ISSN : 1880-358X
Print ISSN : 0013-7626
ISSN-L : 0013-7626
Occurrence of Deformed Leaves in Cucumber Plants Treated with Cold Water and Its Reduction in Seedlings Derived from TNZ303-(Mixture of Jasmonic Acid and Brassinosteroids Derivative) Treated Seeds
Toshiki AsaoKouhei TomitaKumiko TaniguchiKazuyori UshioTakuya BanTakashi HosokiYasuo Kamuro
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2002 Volume 71 Issue 2 Pages 297-299

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Abstract

The occurrence of deformed leaves in cucumber by the treatment of cold water and its reduction in TNZ303 (mixture of jasmonic acid derivative and brassinosteroids derivative) seed treatment were studied. Treating shoot apices of cucumber seedlings with 4°C water induced the development of deformed leaves and suppressed vegetative growth, whereas treatment with 25°C water had a slight effect on leaf deformity. Immersion of seed in 1000 × dilution of TNZ303 for 24 hr decreased the occurrence of deformed leaves and mitigated the suppression of vegetative growth of seedlings whose apices were treated with 4°C water. These results indicate that seed treatment with TNZ303 can overcome the occurrence of deformed leaves by elevating plant's cold tolerance.

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