Arbuscular mycorrhizae symbiosis in plants of rice (Oryza sativa L.) subject to hydric stress. Part I. Physiological response improvement

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Michel Ruiz Sánchezs

Abstract

Rice (Oryza sativa L.) is the most important crop
for human consumption is grown conventionally in flooded
conditions throughout their cycle. However, approximately half
the surface of rice in the world does not have sufficient water
to maintain optimal growth conditions. One possible way to
increase rice production to meet demand is to improve the
efficient use of water by arbuscular mycorrhizal fungi (AMF).
The research was conducted at the Experimental Station of
Zaidín, Granada Spain, with mycorrhizal and non-mycorrhizal
rice plant under controlled conditions and with three water
management, without stress (25 mL), moderate stress (10 mL)
and severe stress (5 mL) for 15 days, in order to evaluate the
effect of AMF inoculation of rice plants subjected to hydric
stress and after the plants recovered. The results show that
rice can benefit from the symbiosis MA and improve long-term
development after a period of water stress. In fact, at each
level of irrigation, the mycorrhizal plants showed a 50  %
increase in aerial fresh mass and 40 % photosynthetic efficiency
compared to non-mycorrhizal plants. Besides, the proline
content increased with hydric stress in mycorrizal and
non-mycorrizal plants.

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How to Cite
Ruiz Sánchezs, M. (2012). Arbuscular mycorrhizae symbiosis in plants of rice (Oryza sativa L.) subject to hydric stress. Part I. Physiological response improvement. Cultivos Tropicales, 33(4), 47–52. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/189
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Original Article