Effects of anti-transpirant on morpho-physiological characteristics of olive cv. Mary

Document Type : Original Article

Authors

1 Former M.Sc. Student, Department of Horticultural Sciences. Faculty of Agriculture, Shahed University, Tehran, Iran.

2 Associate Professor, Department of Horticultural Sciences, Faculty of Agriculture, Shahed university, Tehran. Iran.

3 Professor, Department of Horticultural Sciences, Faculty of Agriculture, Shahed university, Tehran, Iran.

10.30466/rip.2022.52506.1083

Abstract

Olive (Olea europaea L.) is one of the most important horticultural crops, and its cultivation is expanding across various regions of Iran, primarily due to its lower water requirement compared to other fruit trees, especially in arid and semi-arid subtropical regions. With respect to the arid and semi-arid climate of Iran, using methods which mitigate water consumption is crucial for sustainable fruit production. This study aimed to investigate the effect of anti-transpirants and shade net on morpho-physiological characteristics and oil content in a native Iranian cultivar, Mary. The experiment was conducted in a completely randomized design with eight treatments: control, kaolin, talc, zinc oxide, silica, TSZ (combination of talc, silica, and zinc oxide), TSZK (combination of talc, silica, zinc oxide, and kaolin) and shade net and three replications. Fruit growth and quality characteristics were evaluated after harvest. The results showed that anti-transpirants reduced the leaf and fruit temperature compared to the control due to creating a coating layer on the leaf and fruit surface. Among the anti-transpirant agents, the TSZK treatment reduced the temperature of leaves and fruits by 4 °C. It also had the greatest effect on the fresh weight of fruit, fresh weight of flesh, dry weight of flesh and increased fruit length and diameter. In general, anti-transpirant agents improved fruit quality characteristics and increased oil content by reducing leaf and fruit temperature.

Keywords


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