Record ID No. |
4049 |
Author(s) |
Hasanpour, J., Panahi, M., Sadeghi, P. M. M., Arabsalmani, K. , 2012 |
Affiliation |
Agricultural and Natural Resources Research Center, Tehran, Iran., Email: dr.hasanpourj@yahoo.com |
Title |
Effect of inoculation with VA mycorrhiza and azotobacter on grain yield, LAI and protein of wheat on drought stress condition |
Source. Vol.(no):Page |
International Journal of AgriScience, 2(6): 466-476p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Photosynthesis |
Host |
Triticum aestivum |
Organism |
Vesicular mycorrhiza fungus, Azotobacter |
Country |
Iran, East Asia |
Abstracts |
This experiment was done to study the effects of two types of plant growth regulator inoculums on growth and nutrient uptake in wheat under drought stress conditions. The experiment was conducted at the agricultural and natural resources research center of Tehran province (Iran) in 2010-11. The tests were arranged as a split plot layout within a randomized complete block design with three replications. Three irrigation treatments were tested in the main plots; normal irrigation, non-irrigation at the start of flowering stage (light stress) and non-irrigation at start of the grain filling stage (severe stress). Seed inoculations were tested in the subplots, as follows; no inoculation, VA mycorrhiza fungus, Azotobacter and a dual inoculation (fungus plus bacteria). The results showed that the effects of both light and severe drought stresses during the reproductive stage were significant on grain yield. Grain yield decreased from 6507 kg/ha under normal irrigation to 5492 kg/ha (15.6%) in light stress treatment and to 4564 kg/ha (29.9%) in severe stress treatment. The difference between all three irrigation treatments was significant. Inoculation with mycorrhiza fungi, Azotobacter and the dual inoculation, significantly increased wheat grain yields to 5936 (21.6%), 5532 (13.3%), and 5733 kg/ha (17.5%) respectively. Light stress treatment caused a non-significant increase for protein percentage but this was significant under severe stress treatment. |