Optimizing blueberry (Vaccinium corymbosum L.) yield with strategic foliar application of putrescin and spermidine at key growth stages through biochemical and anatomical changes
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Foliar spraying of polyamines, such as putrescine (Put) and spermidine (Spd), has been shown to improve plant and fruit yield. However, the optimal time for spraying these polyamines is still uncertain. The present study was conducted to evaluate plant growth,... ...