Abstract
Lack of access to the soil zinc particularly in calcareous areas with high PH is one of the factors reducing the wheat yield. Therefore, in order to investigate the effect of zinc (Zn) on the growth, yield, and yield components of three wheat cultivars, a split plot experiment in the form of randomized complete block design with three replications was carried out in Hamidiyeh, Ahvaz in 2011-2012. The main plot consisted of foliar application of four levels of zinc fertilizer at stem elongation stage including (without zinc consumption, 0.001 zinc per hectare, 0.003 zinc per hectare, 0.005 zinc per hectare) and the sub plot included three irrigated wheat cultivars (Chamran, Falat, Star). The results indicated that the studied wheat cultivars were significantly different in terms of grain yield at 5% probability level. Chamran cultivar had the highest number of spike per area unit, number of grains per spike, number of spikelet per spike, 1000-grain weight, and consequently the highest grain yield by 4740.83 kg/ha and the lowest grain yield belonged to the Star cultivar by 3700.83 kg/ha. The effect of foliar application of zinc fertilizer on the grain yield was not significant. However, application of 0.005 zinc per hectare (412 kg/ha) increased the grain yield in comparison to the control treatment. Furthermore, the foliar application of zinc had a significant effect on protein percentage and zinc concentration in grain at 1% level. The wheat cultivars were significantly different in terms of the grain zinc concentration at 1% level. The highest and the lowest concentrations of grain zinc respectively belonged to Chamran and Star cultivars. It seems that foliar application of zinc fertilizer had an effective role in increasing the concentration of grain zinc which was followed by the increase of grain yield. Moreover, wheat cultivars had different reactions to the foliar application of zinc and the cultivars with positive reaction to zinc can be used in lands with zinc deficiency.
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Claims 13
Claim · model-written summary
Wheat cultivars differed significantly in grain yield.
- Taxon
- wheat
Triticum aestivume0 - Material
- wheat cultivarse0
- Outcome
- grain yielde0
- Value
- 5% probability levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat cultivars were significantly different in terms of grain yield at 5% probability level”
Claim · model-written summary
Chamran had the highest spike number, grains per spike, spikelets per spike, and 1000-grain weight.
- Material
- Chamrane0
- Outcome
- number of spike per area unit, number of grains per spike, number of spikelet per spike, 1000-grain weighte0
- Direction
- higheste0
Not reportedTaxon
Verbatim
e0“Chamran cultivar had the highest number of spike per area unit, number of grains per spike, number of spikelet per spike, 1000-grain weight”
Claim · model-written summary
Chamran had the highest grain yield of 4740.83 kg/ha.
Not reportedTaxon
Verbatim
e0“Chamran cultivar had the highest number of spike per area unit, number of grains per spike, number of spikelet per spike, 1000-grain weight, and consequently the highest grain yield by 4740.83 kg/ha”
Claim · model-written summary
Star had the lowest grain yield of 3700.83 kg/ha.
Not reportedTaxon
Verbatim
e0“the lowest grain yield belonged to the Star cultivar by 3700.83 kg/ha”
Claim · model-written summary
Foliar zinc had no significant effect on grain yield.
Not reportedTaxonComparatorDirection
Verbatim
e0“The effect of foliar application of zinc fertilizer on the grain yield was not significant.”
Claim · model-written summary
Application of 0.005 zinc per hectare increased grain yield versus control.
- Treatment
- application of 0.005 zinc per hectaree0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 412 kg/hae0
- Comparator
- control treatmente0
Not reportedTaxon
Verbatim
e0“application of 0.005 zinc per hectare (412 kg/ha) increased the grain yield in comparison to the control treatment”
Claim · model-written summary
Foliar zinc significantly affected grain protein percentage and zinc concentration.
- Treatment
- foliar application of zince0
- Outcome
- protein percentage and zinc concentration in graine0
- Value
- 1% levele0
Not reportedTaxonComparatorDirection
Verbatim
e0“foliar application of zinc had a significant effect on protein percentage and zinc concentration in grain at 1% level”
Claim · model-written summary
Wheat cultivars differed significantly in grain zinc concentration.
- Taxon
- wheatTriticum aestivume0
- Material
- wheat cultivarse0
- Outcome
- grain zinc concentratione0
- Value
- 1% levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The wheat cultivars were significantly different in terms of the grain zinc concentration at 1% level.”
Claim · model-written summary
Chamran had the highest grain zinc concentration.
Not reportedTaxon
Verbatim
e0“The highest and the lowest concentrations of grain zinc respectively belonged to Chamran and Star cultivars.”
Claim · model-written summary
Star had the lowest grain zinc concentration.
Not reportedTaxon
Verbatim
e0“The highest and the lowest concentrations of grain zinc respectively belonged to Chamran and Star cultivars.”
Claim · model-written summary
The authors interpret foliar zinc as increasing grain zinc concentration and then grain yield.
- Treatment
- foliar application of zinc fertilizere0
- Outcome
- grain yielde0
- Direction
- increasee0
- Qualifier
- increasing the concentration of grain zince0
Not reportedTaxon
Verbatim
e0“foliar application of zinc fertilizer had an effective role in increasing the concentration of grain zinc which was followed by the increase of grain yield”
Claim · model-written summary
Wheat cultivars reacted differently to foliar zinc.
- Taxon
- wheatTriticum aestivume0
- Treatment
- foliar application of zince0
- Outcome
- different reactionse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat cultivars had different reactions to the foliar application of zinc”
Claim · model-written summary
The authors recommend zinc responsive cultivars for zinc deficient land.
- Material
- cultivarse0
- Outcome
- can be used in lands with zinc deficiencye0
- Setting
- lands with zinc deficiencye0
Not reportedTaxon
Verbatim
e0“cultivars with positive reaction to zinc can be used in lands with zinc deficiency”
The same questions in other papers
zinc atom · yield · Triticum aestivum (wheat)Results differ
455 papers in the same direction as this paper · 49 in the opposite direction · 6 reporting no difference from an alternative
- positive
- positive
- positive
507 papers more in this group
See all 511 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.