EFFECT OF PHOSPHATE BIOFERTILIZERS ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS L. S.C.704) UNDER WATER DEFICIT STRESS CONDITIONS

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EHTESHAMI S.M.R.; AGHAALIKHANI M.; CHAICHI M.R.; KHAVAZI K.

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Journal: Iranian Journal of Field Crop Science Year:2009 | Volume:40 | Issue:1 Page(s): 15-26

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Title

EFFECT OF PHOSPHATE BIOFERTILIZERS ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS L. S.C.704) UNDER WATER DEFICIT STRESS CONDITIONS

Author(s)

EHTESHAMI S.M.R. | AGHAALIKHANI M. | CHAICHI M.R. | KHAVAZI K. | Issue Writer Certificate

Keywords

PHOSPHATE-SOLUBILIZING MICROORGANISMSQ3

MAIZEQ2

PHOSPHORUSQ2

WATER DEFICIT STRESSQ2

NUTRIENT UPTAKEQ3

Abstract

The effect of seed inoculation by phosphate solubilizing microorganisms on growth, yield and NUTRIENT UPTAKE of MAIZE (Zea mays L. SC. 704) was studied in a field experiment. This experiment was conducted in Meshkin Abad Experimental Station during 2005. The experiment design consisted of four randomized complete blocks in a split-factorial arrangement. The main-plots regarding simulating WATER DEFICIT STRESS levels consisted of three water regimes, achieved by scheduling cumulative pan evaporation in mm. The irrigations were scheduled for various treatments, when the cumulative pan evaporation readings reached 70, 100 and 130 mm. The sub-plots included the application of microbial inoculants [Glomus intraradices; Pseudomonas fluorescens strain 93; Glomus intraradices + Pseudomonas fluorescens strain 93] and none [triple super phosphate fertilizer; without fertilizer (control)]. Positive effects on plant growth, NUTRIENT UPTAKE, grain yield and yield components in MAIZE was recorded in the treatment receiving mixed inoculums of Glomus intraradices (AM) and Pseudomonas fluorescens (Pf). Co-inoculation treatment significantly increased grain yield, yield components, harvest index, grain N and P, soil available P and root colonization percentage under WATER DEFICIT STRESS. Seed inoculation with only AM positively affected the measured parameters as much as co-inoculated treatments. In some investigated characteristics under well-watered conditions, chemical fertilizer treatment was superior to co-inoculated treatments, but the difference was not significant. According to the results obtained, in contrast to the inoculated treatments with AM+Pf and AM, the application of Pf alone led to a comparatively poor response. Therefore, this microorganism needs a complement for its activity in soil. All the assessed parameters in inoculated treatments were of higher values than those in the uninoculated treatments under WATER DEFICIT STRESS conditions. Furthermore, the investigated characteristics of co-inoculated plants under severe WATER DEFICIT STRESS were significantly less pronounced than co-inoculated plants under well-watered and moderate-stressed conditions. Therefore it could be stated, these microorganisms need more time to fix and establish themselves in soil. The present finding showed that PHOSPHATE-SOLUBILIZING MICROORGANISMS can positively interact in promoting plant growth as well as in P uptake in MAIZE plants, leading to plant tolerance improving under WATER DEFICIT STRESS conditions.

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APA: Copy

EHTESHAMI, S.M.R., AGHAALIKHANI, M., CHAICHI, M.R., & KHAVAZI, K.. (2009). EFFECT OF PHOSPHATE BIOFERTILIZERS ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS L. S.C.704) UNDER WATER DEFICIT STRESS CONDITIONS. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 40(1), 15-26. SID. https://sid.ir/paper/153486/en

Vancouver: Copy

EHTESHAMI S.M.R., AGHAALIKHANI M., CHAICHI M.R., KHAVAZI K.. EFFECT OF PHOSPHATE BIOFERTILIZERS ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS L. S.C.704) UNDER WATER DEFICIT STRESS CONDITIONS. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2009;40(1):15-26. Available from: https://sid.ir/paper/153486/en

IEEE: Copy

S.M.R. EHTESHAMI, M. AGHAALIKHANI, M.R. CHAICHI, and K. KHAVAZI, “EFFECT OF PHOSPHATE BIOFERTILIZERS ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS L. S.C.704) UNDER WATER DEFICIT STRESS CONDITIONS,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 40, no. 1, pp. 15–26, 2009, [Online]. Available: https://sid.ir/paper/153486/en

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