Abstract
Abstract In hot and arid regions, drought stress is considered as one of the main reasons for yield reduction. To study the effect of drought stress and zinc spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2010 and 2011 on Research Farm, Islamic Azad University of Gonabad as a split factorial within randomized complete block design with three replications. The main plots with irrigation factor and four levels were considered: A) full irrigation, B) stopping irrigation at pollination step, and C) stopping irrigation at the seed filling and four levels of zinc sulfate including 0 and 0.5%, 1% and 1.5% spraying (tassel initiation and grain filling) were as the subplots. The drought stress reduced the thousand kernels weight (TKW) in seed filling stage and the number of seeds per ear in tasseling stage about 11% and 27% less than the one of control treatment, respectively. Zinc increased the thousand kernels weight from 27.3 to 31.3 grams and induced an increase in the number of seeds per ear from 710 to 770. The results obtained within the present research showed that zinc spray has fairly improved the effects caused by drought stress.
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Claims 5
Claim · model-written summary
Drought stress reduced thousand kernels weight in the seed filling stage by about 11% relative to control.
- Taxon
- corn
Zea mays subsp. mayse0 - Organ / stage
- seed filling stagee1
- Treatment
- drought stresse1
- Outcome
- thousand kernels weighte1
- Direction
- reducede1
- Value
- 11%e1
- Comparator
- control treatmente1
- Setting
- Research Farm, Islamic Azad University of Gonabade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effect of drought stress and zinc spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2010 and 2011 on Research Farm, Islamic Azad University of Gonabad as a split factorial within randomized complete block design with three replications”
e1“The drought stress reduced the thousand kernels weight (TKW) in seed filling stage and the number of seeds per ear in tasseling stage about 11% and 27% less than the one of control treatment”
Claim · model-written summary
Drought stress reduced seeds per ear in the tasseling stage by about 27% relative to control.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- tasseling stagee1
- Treatment
- drought stresse1
- Outcome
- number of seeds per eare1
- Direction
- lesse1
- Value
- 27%e1
- Comparator
- control treatmente1
- Setting
- Research Farm, Islamic Azad University of Gonabade0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effect of drought stress and zinc spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2010 and 2011 on Research Farm, Islamic Azad University of Gonabad as a split factorial within randomized complete block design with three replications”
e1“The drought stress reduced the thousand kernels weight (TKW) in seed filling stage and the number of seeds per ear in tasseling stage about 11% and 27% less than the one of control treatment”
Claim · model-written summary
Zinc increased thousand kernels weight from 27.3 to 31.3 grams in corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Zince2
- Outcome
- thousand kernels weighte2
- Direction
- increasede2
- Value
- 27.3 to 31.3 gramse2
- Setting
- Research Farm, Islamic Azad University of Gonabade0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effect of drought stress and zinc spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2010 and 2011 on Research Farm, Islamic Azad University of Gonabad as a split factorial within randomized complete block design with three replications”
e2“Zinc increased the thousand kernels weight from 27.3 to 31.3 grams and induced an increase in the number of seeds per ear from 710 to 770”
Claim · model-written summary
Zinc induced an increase in seeds per ear from 710 to 770 in corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Zince2
- Outcome
- number of seeds per eare2
- Direction
- increasee2
- Value
- 710 to 770e2
- Setting
- Research Farm, Islamic Azad University of Gonabade0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effect of drought stress and zinc spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2010 and 2011 on Research Farm, Islamic Azad University of Gonabad as a split factorial within randomized complete block design with three replications”
e2“Zinc increased the thousand kernels weight from 27.3 to 31.3 grams and induced an increase in the number of seeds per ear from 710 to 770”
Claim · model-written summary
Zinc spray fairly improved the effects caused by drought stress in corn.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- zinc spraye3
- Outcome
- effects caused by drought stresse3
- Direction
- improvede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To study the effect of drought stress and zinc spray on the yield and yield components of corn, an experiment was carried out during the crop seasons of 2010 and 2011 on Research Farm, Islamic Azad University of Gonabad as a split factorial within randomized complete block design with three replications”
e3“The results obtained within the present research showed that zinc spray has fairly improved the effects caused by drought stress”
The same questions in other papers
zinc atom · yield · Zea mays (maize)Results differ
390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- no effect
437 papers more in this group
See all 441 papers →drought · yield · Zea mays (maize)Positive and negative results
299 papers in the same direction as this paper · 53 in the opposite direction
- positive
- positive
- positive
349 papers more in this group
See all 353 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.