Effect of Boron foliar spray on biochemical changes in Santa Teriza Lime Influence on Citrus Leaf Miner Damage.
Abstract
The effect of foliar spray of young lemon trees (santa teriza) with boric acid (500- 1000 ppm), on antioxidant enzymes activities (peroxidas POD, poly phenol oxidase PPO ), total phenolic content, total chlorophyll and their influence on leaf miner ( Phyllocnistis citrella) activity ( tunnel length and damage density ) under field condition was investigated .
The results showed that boron 1000 ppm enhanced POD activity (0.387 mm-l mg -l protein) and PPO activity (1.389 ΔA/min/g FW), and decreased total phenolic content (4.622 mg/g). Both boron concentration improved total leaf chlorophyll content ( spad29.07- 24.06).
The results demonstrated as well that Boron treatment has a beneficial effect in reducing leaf miner activity, by decreasing tunnel length and damage density.
Key words:
Boron- Santa teriza lime- Antioxidant enzymes- Total phenolic content_
Total chlorophyll- Citrus leaf miner- Tunnel length- Damage density.
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