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PHYSIOLOGICAL CHARACTERS FOR STORAGE PROPERTY OF THE 'alc', 'nor', 'rin' RIPENING MUTANTS AND ITS F_1 IN TOMATO

XU Holing

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Abstract

Changcs in respiration, ethylene production, PG activity and firmness during repening period wcre monitored in fruits of the 'alcobaca'、' nor'、 ' rin' mutants and those of normal tomato (Lycopersicon esculentum Mill.). In fruits of mutants (ale、 nor、 rin), no respiatory or ethylene climacteric was observed, Firmness dcclincd very slowly with only trace Levels of Polygalacturonase (PG) in mature fruits. They showed a 400% increase in storability compared to normal cult. 524 with a mean storage life of 90～120 days. Ripening of fruits from heterozygous (nor/+), (alc/+), (rin/+) F_1 plants was delayed. The respiratory climacteric was partially suppressed and delayed (5～7 days), peak ethylene production was 45%～65% of that in normal fruits. Fruits harvested at the mature green may reached red colour.

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What this paper is about

Changcs in respiration, ethylene production, PG activity and firmness during repening period wcre monitored in fruits of the 'alcobaca'、' nor'、 ' rin' mutants and those of normal tomato (Lycopersicon esculentum Mill.). In fruits of mutants (ale、 nor、 rin), no respiatory or ethylene climacteric was observed, Firmness dcclincd very slowly with only trace Levels of Polygalacturonase (PG) in mature fruits. They showed a 400% increase in storability compared to normal cult. 524 with a mean storage life of 90～120 days. Ripening of fruits from heterozygous (nor/+), (alc/+), (rin/+) F_1 plants was delayed. The respiratory climacteric was partially suppressed and delayed (5～7 days), peak ethylene production was 45%～65% of that in normal fruits. Fruits harvested at the mature green may reached red colour.

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Available abstract

Changcs in respiration, ethylene production, PG activity and firmness during repening period wcre monitored in fruits of the 'alcobaca'、' nor'、 ' rin' mutants and those of normal tomato (Lycopersicon esculentum Mill.). In fruits of mutants (ale、 nor、 rin), no respiatory or ethylene climacteric was observed, Firmness dcclincd very slowly with only trace Levels of Polygalacturonase (PG) in mature fruits. They showed a 400% increase in storability compared to normal cult. 524 with a mean storage life of 90～120 days. Ripening of fruits from heterozygous (nor/+), (alc/+), (rin/+) F_1 plants was delayed. The respiratory climacteric was partially suppressed and delayed (5～7 days), peak ethylene production was 45%～65% of that in normal fruits. Fruits harvested at the mature green may reached red colour.

Key concepts: Climacteric, Ripening, Lycopersicon, Pectinase, Ethylene, Horticulture, Respiration, Chemistry

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PHYSIOLOGICAL CHARACTERS FOR STORAGE PROPERTY OF THE 'alc', 'nor', 'rin' RIPENING MUTANTS AND ITS F_1 IN TOMATO — Research Paper | ScholarLens