Abstract
A field experiment was carried out in order to evaluate the effect of mycorrhiza and foliar application of Zn chelate on yield and yield components of maize (zea mays L.) SC600 cultivar under water stress condition in the faculty of agronomy and plant breeding, Islamic Azad University, Boroujerd Branch, Iran during the growing seasons 2013-2014. The experiment was laid out in a split-factorial design based on randomized block design with three replications. Treatments were different irrigation periods (7, 14 and 21 days) in main plots and Zn chelate and mycorrhiza (strain of Glomus intraradices) in two levels of use and non use of them as factorial in sub plots. Results showed that, the effect of water stress mycorrhiza and Zn chelate on all traits were significant. The interaction effect of water stress mycorrhiza and Zn chelate on all traits excluding number of grain per cob and biomass were significant. Also interaction effect of water stress ad mycorrhiza on number of grain per cob and 100 grain weight were significant only. However the interaction effect of water stress*Zn chelate and mycorrhiza*Zn chelate were significant on 100 grain weight and biomass yield respectively. The comparison of the mean values showed that 7 day irrigation period treatment with use of mycorrhiza and Zn chelate had the highest chlorophyll SPAD, number of row per cob, 100 grain weight, grain yield and harvest index but 21 day irrigation period without application of Zn chelate and mycorrhiza had the lowest of them. The maximum production of maize was recorded for normal irrigation as 7 day irrigation period and application of mycorrhiza and Zn chelate. It can be stated that with respect to the alleviating effects of mycorrhiza fungi under moderate drought stress on corn grain yield, these fungi can enhance corn water efficiency under drought conditions and hence increase corn yield. The combined effects of mycorrhiza fungi and Zn chelate can intensify the alleviating effects of mycorrhiza fungi on corn growth and production under water stress. Therefore, we can increase yield and yield components of maize by decrease of irrigation period and application Zn chelate as nutrient and colonization of corn roots by mycorrhiza fungi.DOI: http://dx.doi.org/10.3126/ijls.v9i5.12702
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Claims 10
Claim · model-written summary
Water stress, mycorrhiza and zinc chelate significantly affected all measured maize traits.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of water stress mycorrhiza and Zn chelate on all traits were significant”
t0“Maize (Zea mays L.)”
Claim · model-written summary
The three-way interaction was significant for all traits except grains per cob and biomass.
- Treatment
- water stress mycorrhiza and Zn chelatee0
- Outcome
- all traits excluding number of grain per cob and biomasse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction effect of water stress mycorrhiza and Zn chelate on all traits excluding number of grain per cob and biomass were significant”
t0“Maize (Zea mays L.)”
Claim · model-written summary
Water stress and mycorrhiza interacted significantly for grains per cob and 100 grain weight.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“interaction effect of water stress ad mycorrhiza on number of grain per cob and 100 grain weight were significant only”
t0“Maize (Zea mays L.)”
Claim · model-written summary
Water stress and zinc chelate interacted significantly for 100 grain weight.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“interaction effect of water stress*Zn chelate and mycorrhiza*Zn chelate were significant on 100 grain weight and biomass yield respectively”
t0“Maize (Zea mays L.)”
Claim · model-written summary
Mycorrhiza and zinc chelate interacted significantly for biomass yield.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“interaction effect of water stress*Zn chelate and mycorrhiza*Zn chelate were significant on 100 grain weight and biomass yield respectively”
t0“Maize (Zea mays L.)”
Claim · model-written summary
Seven-day irrigation with mycorrhiza and zinc chelate had the highest chlorophyll SPAD.
- Treatment
- 7 day irrigation period treatment with use of mycorrhiza and Zn chelatee0
- Outcome
- chlorophyll SPADe0
- Direction
- higheste0
- Comparator
- 21 day irrigation period without application of Zn chelate and mycorrhizae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“7 day irrigation period treatment with use of mycorrhiza and Zn chelate had the highest chlorophyll SPAD, number of row per cob, 100 grain weight, grain yield and harvest index but 21 day irrigation period without application of Zn chelate and mycorrhiza had the lowest of them”
t0“Maize (Zea mays L.)”
Claim · model-written summary
Seven-day irrigation with mycorrhiza and zinc chelate had the highest yield components.
- Treatment
- 7 day irrigation period treatment with use of mycorrhiza and Zn chelatee0
- Outcome
- number of row per cob, 100 grain weight, grain yielde0
- Direction
- higheste0
- Comparator
- 21 day irrigation period without application of Zn chelate and mycorrhizae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“7 day irrigation period treatment with use of mycorrhiza and Zn chelate had the highest chlorophyll SPAD, number of row per cob, 100 grain weight, grain yield and harvest index but 21 day irrigation period without application of Zn chelate and mycorrhiza had the lowest of them”
t0“Maize (Zea mays L.)”
Claim · model-written summary
Seven-day irrigation with mycorrhiza and zinc chelate had the highest harvest index.
- Treatment
- 7 day irrigation period treatment with use of mycorrhiza and Zn chelatee0
- Outcome
- harvest indexe0
- Direction
- higheste0
- Comparator
- 21 day irrigation period without application of Zn chelate and mycorrhizae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“7 day irrigation period treatment with use of mycorrhiza and Zn chelate had the highest chlorophyll SPAD, number of row per cob, 100 grain weight, grain yield and harvest index but 21 day irrigation period without application of Zn chelate and mycorrhiza had the lowest of them”
t0“Maize (Zea mays L.)”
Claim · model-written summary
The authors concluded mycorrhiza could enhance corn water efficiency under drought.
- Taxon
- corn
Zea mays subsp. mayse0 - Outcome
- corn water efficiencye0
- Direction
- enhancee0
- Qualifier
- under drought conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these fungi can enhance corn water efficiency under drought conditions and hence increase corn yield”
Claim · model-written summary
The authors recommend shorter irrigation periods with zinc chelate and mycorrhizal colonization to increase maize yield.
- Outcome
- decrease of irrigation period and application Zn chelate as nutrient and colonization of corn roots by mycorrhiza fungie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we can increase yield and yield components of maize by decrease of irrigation period and application Zn chelate as nutrient and colonization of corn roots by mycorrhiza fungi”
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