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.