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Economics

All Graduate Theses and Dissertations

1980

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Full-Text Articles in Life Sciences

Determination Of The Temperature Response Curves For Abscisic Acid And Its Derivatives In Economically Important Horticultural Crops, Jaleh Daie May 1980

Determination Of The Temperature Response Curves For Abscisic Acid And Its Derivatives In Economically Important Horticultural Crops, Jaleh Daie

All Graduate Theses and Dissertations

Part I

Four-week old tomato (Lycopersicon esculentum Mill.) seedlings were exposed to different constant temperatures of 15, 25, 35, or 45 c. To determine the effect of temperature on Abscisic Acid (ABA) young and old leaves were harvested at 0, 6, 12, 24, or 48 hand free, hydrolyzable and total ABA were measured using gas liquid chromatographic methods. Temperature had a significant effect on free , hydrolyzable and total ABA in both young and old leaves. Time had a significant effect as a cubic function on all ABA measurements in old leaves but in young leaves a significant effect was observed ...