Abstract
This study was carried out in th (Adai village) of Baquba during the spring season 2018 in order to find the effect of different concentrations of proline and humic acid and irrigation divergence intervals and their interaction in the anatomical characteristics of maize plants Zea mysa L. The experiment included spraying plants with concentrations of 0,100,200,300 mg. L-1 proline acid and the use of four concentrations of humic acid 0.1, 2, 3 gm.m-2 Irrigation intervals were spaced every 5, 10 and 15 days. This experiment involved the study of the number of vascular bundles in the leg, the number of vascular bundles in the middle race of the leaves and the stomatal coefficient of the upper and lower epidermis, and the frequency of the upper and lower epidermis of the yellow maize plants. . The results indicated the following. Significant effect was shown in the case of adding high concentrations of proline and humic acid or spraying them together. Also significant effects were due to overlap between them and reducing the negative effects of water stress due to divergence of irrigation durations.
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