Abstract
Eggplant is one of the most important vegetable crops with high nutritional value. So, field experiment was performed to study the effect of foliar application with iron in the form of Fe-EDTA at rate of 300 mg L-1 (923.04 g fed-1) and selenium as Na2SeO3 (sodium selenite) at rate of 5 mg L-1 (4.38 g fed-1) on plant growth, yield, quality and chemical composition of eggplant (Solanum melongena, L.) under three levels of nitrogen, phosphorus and potassium fertilization (NPK50%, NPK75% and NPK100% from recommended doses). Field experiment was conducted at Experimental Farm of the Faculty of Agriculture, El-Mansoura University, Dakahlia Governorate, Egypt, in the season of 2016. The used experimental design was a split plot design with three replicates. As for, the treatment NPK fertilizers at rate of 75% from recommended dose with spraying plants by mixture of (Fe + Se) showed the highest significant values of the studied parameters (plant height, number of leaves plant-1, leaves fresh and dry weight and total chlorophyll content), yield (fruits length, fruit diameter and yield, except number of fruits plant-1 was not significant) at any level of mineral fertilization as well as (N, P and K contents (%) and N, K uptake (g plant-1) in eggplant leaves, except P uptake which was non-significant comparing with the untreated plants and fruit quality (crude protein, total carbohydrates, dietary fiber and vitamin C except NO3- which gave the opposite trend). The maximum values of NO3- concentration in eggplant leaves were obtained by Fe foliar application with NPK-fertilization at rate of 100% RD. On the other hand, the treatment NPK100% x (Fe + Se) as mixture significantly increased the Fe and Se contents in the leaves of eggplant. Accordingly, the application of NPK at rate 75% RD with foliar application of iron and selenium in combination together at rate of 300 mg L-1 and 5 mg L-1, respectively gave the highest significant values of all tested characters of eggplant (growth, yield and its quality) under study condition.
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Claims 11
Claim · model-written summary
NPK75% with Fe and Se gave the highest significant plant height, leaf number and leaf mass.
- Treatment
- NPK fertilizers at rate of 75% from recommended dose with spraying plants by mixture of (Fe + Se)e0
- Outcome
- plant height, number of leaves plant-1, leaves fresh and dry weighte0
- Direction
- higheste0
Not reportedTaxonComparator
Verbatim
e0“NPK fertilizers at rate of 75% from recommended dose with spraying plants by mixture of (Fe + Se) showed the highest significant values of the studied parameters (plant height, number of leaves plant-1, leaves fresh and dry weight and total chlorophyll content)”
Claim · model-written summary
The same treatment gave the highest significant total chlorophyll content.
- Treatment
- NPK fertilizers at rate of 75% from recommended dose with spraying plants by mixture of (Fe + Se)e0
- Outcome
- total chlorophyll contente0
- Direction
- higheste0
Not reportedTaxonComparator
Verbatim
e0“NPK fertilizers at rate of 75% from recommended dose with spraying plants by mixture of (Fe + Se) showed the highest significant values of the studied parameters (plant height, number of leaves plant-1, leaves fresh and dry weight and total chlorophyll content)”
Claim · model-written summary
The treatment gave the highest significant fruit length, diameter and yield.
- Outcome
- fruits length, fruit diameter and yielde0
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“yield (fruits length, fruit diameter and yield, except number of fruits plant-1 was not significant)”
Claim · model-written summary
Fruit number was not significantly changed.
- Outcome
- number of fruits plant-1e0
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“number of fruits plant-1 was not significant”
Claim · model-written summary
Leaf N, P and K contents and N and K uptake were higher under the treatment.
- Taxon
- eggplant
Solanum melongenae0 - Outcome
- N, P and K contents (%) and N, K uptake (g plant-1)e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N, P and K contents (%) and N, K uptake (g plant-1) in eggplant leaves”
Claim · model-written summary
Leaf P uptake was not significantly changed.
Not reportedTaxonTreatmentDirection
Verbatim
e0“P uptake which was non-significant comparing with the untreated plants”
Claim · model-written summary
Fruit crude protein, carbohydrates, fiber and vitamin C increased under the treatment.
- Outcome
- crude protein, total carbohydrates, dietary fiber and vitamin Ce0
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“fruit quality (crude protein, total carbohydrates, dietary fiber and vitamin C except NO3- which gave the opposite trend)”
Claim · model-written summary
Fruit nitrate followed the opposite trend.
Not reportedTaxonTreatmentComparator
Verbatim
e0“NO3- which gave the opposite trend”
Claim · model-written summary
Fe foliar application with NPK100% gave maximum leaf nitrate concentration.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- Fe foliar application with NPK-fertilization at rate of 100% RDe0
- Outcome
- NO3- concentratione0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum values of NO3- concentration in eggplant leaves were obtained by Fe foliar application with NPK-fertilization at rate of 100% RD.”
Claim · model-written summary
NPK100% with Fe and Se significantly increased leaf Fe and Se content.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- NPK100% x (Fe + Se) as mixturee0
- Outcome
- Fe and Se contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK100% x (Fe + Se) as mixture significantly increased the Fe and Se contents in the leaves of eggplant.”
Claim · model-written summary
The authors recommend NPK75% with combined foliar Fe and Se for eggplant growth, yield and quality.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- NPK at rate 75% RD with foliar application of iron and selenium in combination together at rate of 300 mg L-1 and 5 mg L-1e0
- Outcome
- growth, yield and its qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of NPK at rate 75% RD with foliar application of iron and selenium in combination together at rate of 300 mg L-1 and 5 mg L-1, respectively gave the highest significant values of all tested characters of eggplant (growth, yield and its quality) under study condition.”
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