EFFECTS OF HUMIC ACID AND PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPRS) ON YIELD AND YIELD COMPONENTS OF DURUM WHEAT UNDER DROUGHT STRESS CONDITION IN SHAHR-E-REY REGION

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PAZOUKI ALI REZA

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Journal: Cereal Research Year:2016 | Volume:6 | Issue:1 Page(s): 105-117

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Title

EFFECTS OF HUMIC ACID AND PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPRS) ON YIELD AND YIELD COMPONENTS OF DURUM WHEAT UNDER DROUGHT STRESS CONDITION IN SHAHR-E-REY REGION

Author(s)

PAZOUKI ALI REZA | Issue Writer Certificate

Keywords

AZOSPIRILLUMQ1

AZOTOBACTER PSEUDOMONASQ1

IRRIGATION REGIMESQ2

ORGANIC FERTILIZERQ1

Abstract

To study the effects of drought stress, plant growth promoting rhizobacteria (PGPR) and humic acid on yield and yield components of durum wheat, an experiment was conducted at research field of Islamic Azad University, Yadegar-e-Imam Khomeini, Shahr-e-Rey, Iran, in 2011-2012 growth season.The experiment was carried out as split-plot factorial in randomized complete block design with four replications. The experimental factors were IRRIGATION REGIMES in three levels (irrigation after 80, 120 and 160 mm evaporation from class A evaporation pan) in main plots and humic acid and plant growth promoting rhizobacteria (PGPR, AZOSPIRILLUM and AZOTOBACTER PSEUDOMONAS) both in two levels, (application and non-application) as factorial in sub-plots. The results indicated that apart from the effect of humic acid on grain number and biological yield, the main effect of other factors were significant on all evaluated traits. In this case, decreasing irrigation interval to 80 mm, increased grain yield to 3655.37 kg/ha and application of PGPR increased grain and biological yield (9.4% and 4.6% respectively). The application of humic acid also increased grain yield (6.9%) compared to nonapplication.Among the interaction effects, only the irrigation X PGPRs were significant on peduncle length and number of spikes per m2. In this circumstance, irrigation after 80 mm evaporation from class A evaporation pan under both inoculated and non-inoculated grains by PGPRs showed the highest amounts of mentioned traits than control. The findings of this research showed that the positive effect of PGPRs on most studied traits was more than humic acid.

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APA: Copy

PAZOUKI, ALI REZA. (2016). EFFECTS OF HUMIC ACID AND PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPRS) ON YIELD AND YIELD COMPONENTS OF DURUM WHEAT UNDER DROUGHT STRESS CONDITION IN SHAHR-E-REY REGION. CEREAL RESEARCH, 6(1), 105-117. SID. https://sid.ir/paper/246654/en

Vancouver: Copy

PAZOUKI ALI REZA. EFFECTS OF HUMIC ACID AND PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPRS) ON YIELD AND YIELD COMPONENTS OF DURUM WHEAT UNDER DROUGHT STRESS CONDITION IN SHAHR-E-REY REGION. CEREAL RESEARCH[Internet]. 2016;6(1):105-117. Available from: https://sid.ir/paper/246654/en

IEEE: Copy

ALI REZA PAZOUKI, “EFFECTS OF HUMIC ACID AND PLANT GROWTH PROMOTING RHIZOBACTERIA (PGPRS) ON YIELD AND YIELD COMPONENTS OF DURUM WHEAT UNDER DROUGHT STRESS CONDITION IN SHAHR-E-REY REGION,” CEREAL RESEARCH, vol. 6, no. 1, pp. 105–117, 2016, [Online]. Available: https://sid.ir/paper/246654/en

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