TITLE:
Strategy Role of Mycorrhiza Inoculation on Osmotic Pressure, Chemical Constituents and Growth Yield of Maize Plant Gown under Drought Stress
AUTHORS:
Hamdia Mahmoud Abd El-Samad, Khloud Nagy Shaker Abd El-Hakeem
KEYWORDS:
Moisture Content, Mycorrhiza Inoculation, Maize Plant
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.10 No.6,
June
28,
2019
ABSTRACT: The present work was carried out to investigate the
role of mycorrhiza inoculation at two harvesting stages (90-days and 30-days)
of maize plants grown in pot experiment with different moisture content levels
100%, 70%, 50% and 20%. Drought stress tolerant in maize plant was varied in
different organs of the same plants and also varied among different stage of
plant development. The sensitivity of maize plants was related with reduction
of root soluble sugar, shoot and root soluble protein at 30-days of plant
harvesting, and soluble sugar and soluble protein in both organs of both
harvesting stages. This related with reduction in OP and lowering of water
uptake which induced a marked decrease in fresh and dry matter production in
shoot and root of both harvesting stages. AM inoculation increase maize
tolerant to drought stress presented in increasing growth parameters, chemical
constituents and minerals contents compared
with untreated plants. Proline content with AM inoculation was more or less
unchanged in shoot of plant harvesting at 30-days and in root of plant
harvesting at 90-days. However, a marked increase was induced in plant harvesting at 30-days and in shoot
of plant harvesting at 90-days. Mycorrhiza
inoculation induced a significant increase in OP value either compared with
corresponding level or compared with control value 100% as in plant 30-days of
harvesting or compared with control only as in plant harvesting after 90-days.
AM infection with different moisture content levels measured by N-acetyl
glucosamine content were not affected by drought stress. Results showed also
that control roots contained N-acetyl glucosamine would be attributed to mycorrhiza
and other fungi naturally present in soil.