Effect of Pre-harvest Application of Benzyladenine and Phytoncide Nanoemulsion on Vegetative and Reproductive Characteristics of the Strawberry (Fragaria×ananassa Duch. 'Albion') and Marketability of the Fruit
2023
asgari, Farzad | Kalatejari, Sepideh | Motesharezadeh, Babak | Ghanbari Jahromi, Marzieh | Weisany, Weria
In order to investigate the effect of benzyladenine and a kind of natural phytoncide on various quantitative and qualitative traits related to the marketing value of the strawberry (Fragaria×ananassa Duch.) plant a factorial experiment, based on a randomized complete block design was carried out with three replications in the Albion greenhouse, located in Damavand county. The first factor was benzyladenine (6-BAP) at two levels (0 and 100 mg/l) and the second, phytoncide nanoemulsion (PNE) at three levels (0, 0.75% and 1.5%). Young plants were sprayed twice with 6-BAP during the vegetative growth phase and thrice during the reproductive phase with PNE, which was comprised of the essential oils of Pinus nigra and Picea spp. Application of 6-BAP during the vegetative stage resulted in production of more leaves and higher leaf area. Also, 6-BAP increased crown diameter significantly, compared to control plants, and had a positive effect on all the studied traits at the reproductive stage, as well. This kind of cytokinin improved taste and other quality attributes of the fruits, along with plant yield. PNE was effective on increasing the fruit firmness and longevity. Furthermore, it had a significant effect on delaying the fruit weight loss and maintaining the appearance quality of the fruits for a longer time. Based on the results, taking advantage of 6-BAP and the studied PNE during pre-harvest phase is recommended for improving strawberry fruit characteristics.
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