Abstract
In the present investigation, 26 rice (Oryza sativa L.) cultivars viz., some locals, aromatics, high yielding variet- ies (HYVs) and hybrids were evaluated for yield efficiency, Zn content in grains and also Zn recovery efficiency in a strip plot design during the rainy (kharif) season for the consecutive 2 years (2009 and 2010) under varied Zn application practices. Rice cultivars differed significantly in their yield and native Zn contents as well as recovery of applied Zn allocation in grains, straw and roots. Grain and straw yields as well as harvest index of different cul- tivars showed wide variations both with and without Zn applications. On an average, grain yields of different rice cultivars increased by 29 and 22% with soil + foliar and only soil application of Zn, respectively. HYVs showed highest yield efficiency followed by hybrid, aromatic and local cultivars, irrespective of methods of Zn fertilization. The content of native Zn in whole rice grain was the highest in aromatics (27.8 mg/kg) followed by locals (26.3 mg/ kg), HYVs (23.0 mg/kg) and hybrids (22.0 mg/kg). Zinc content in whole grains increased significantly in all the cultivars with Zn-application and the magnitude of increase was higher when Zn was applied as soil + foliar appli- cation (118%) than soil application only (30%). Zinc concentration in milled grains increased to the extent of 29.5 and 119.5% upon soil application and soil + foliar application of Zn fertilizers. In rice bran and husk Zn concentra- tion increased to the extent of 21 and 155% and 41 and 373% through soil and soil + foliar application, respec- tively. Zinc-use efficiency varied from 0.53 to 2.83% with a mean value of 0.90% upon soil application of 20 kg Zn as ZnSO .7H O and 1.89 to 4.80% with a mean value of 2.74% upon application of 20 kg Zn as ZnSO .7H O with 4 2 4 2 two foliar spray @ 0.5% ZnSO .7H O solution i.e. soil + foliar applied Zn increased the Zn-use efficiency, on an 4 2 average, three fold than with only soil applied Zn. Thus, soil + foliar application of Zn offers a useful means for en- riching rice grain Zn concentrations irrespective of the cultivars tested and contributed towards enhanced Zn-use efficiency by rice.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 20
Claim · model-written summary
Rice cultivars differed in yield, native zinc content, and zinc recovery.
- Taxon
- Rice
Oryza sativae0 - Outcome
- yield and native Zn contents as well as recovery of applied Zn allocatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice cultivars differed significantly in their yield and native Zn contents as well as recovery of applied Zn allocation in grains, straw and roots.”
Claim · model-written summary
Soil plus foliar zinc increased average rice grain yield by 29%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yields of different rice cultivars increased by 29 and 22% with soil + foliar and only soil application of Zn, respectively.”
t0“rice”
Claim · model-written summary
Soil zinc application increased average rice grain yield by 22%.
- Taxon
- riceOryza sativat0
- Treatment
- only soil application of Zne0
- Outcome
- grain yieldse0
- Direction
- increasede0
- Value
- 22%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yields of different rice cultivars increased by 29 and 22% with soil + foliar and only soil application of Zn, respectively.”
t0“rice”
Claim · model-written summary
HYVs had the highest yield efficiency, followed by hybrid, aromatic and local cultivars.
- Taxon
- riceOryza sativat0
- Material
- HYVse0
- Outcome
- yield efficiencye0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HYVs showed highest yield efficiency followed by hybrid, aromatic and local cultivars, irrespective of methods of Zn fertilization.”
t0“rice”
Claim · model-written summary
Native grain zinc content was highest in aromatic rice cultivars at 27.8 mg/kg.
- Taxon
- riceOryza sativae0
- Material
- aromaticse0
- Outcome
- native Zn in whole rice graine0
- Direction
- higheste0
- Value
- 27.8 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“native Zn in whole rice grain was the highest in aromatics (27.8 mg/kg)”
Claim · model-written summary
Native grain zinc content was 26.3 mg/kg in local cultivars.
- Taxon
- riceOryza sativat0
- Material
- localse0
- Outcome
- native Zn in whole rice graine1
- Value
- 26.3 mg/ kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“locals (26.3 mg/ kg)”
t0“rice”
e1“native Zn in whole rice grain”
Claim · model-written summary
Native grain zinc content was 23.0 mg/kg in HYVs.
- Taxon
- riceOryza sativat0
- Material
- HYVse0
- Outcome
- native Zn in whole rice graine1
- Value
- 23.0 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HYVs (23.0 mg/kg)”
t0“rice”
e1“native Zn in whole rice grain”
Claim · model-written summary
Native grain zinc content was 22.0 mg/kg in hybrids.
- Taxon
- riceOryza sativat0
- Material
- hybridse0
- Outcome
- native Zn in whole rice graine1
- Value
- 22.0 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hybrids (22.0 mg/kg)”
t0“rice”
e1“native Zn in whole rice grain”
Claim · model-written summary
Zinc application significantly increased whole-grain zinc content in all rice cultivars.
- Taxon
- riceOryza sativat0
- Treatment
- Zn-applicatione0
- Outcome
- Zinc content in whole grainse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc content in whole grains increased significantly in all the cultivars with Zn-application”
t0“rice”
Claim · model-written summary
Soil plus foliar zinc increased whole-grain zinc content by 118%.
- Taxon
- riceOryza sativat0
- Treatment
- soil + foliar appli- catione0
- Outcome
- Zinc content in whole grainse1
- Direction
- increasede2
- Value
- 118%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil + foliar appli- cation (118%)”
t0“rice”
e1“Zinc content in whole grains”
e2“Zinc content in whole grains increased significantly in all the cultivars with Zn-application”
Claim · model-written summary
Soil zinc application increased whole-grain zinc content by 30%.
- Taxon
- riceOryza sativat0
- Treatment
- soil application onlye0
- Outcome
- Zinc content in whole grainse1
- Direction
- increasede2
- Value
- 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil application only (30%)”
t0“rice”
e1“Zinc content in whole grains”
e2“Zinc content in whole grains increased significantly in all the cultivars with Zn-application”
Claim · model-written summary
Soil zinc application increased milled-grain zinc concentration by 29.5%.
- Taxon
- riceOryza sativat0
- Treatment
- soil applicatione0
- Outcome
- Zinc concentration in milled grainse0
- Direction
- increasede0
- Value
- 29.5e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc concentration in milled grains increased to the extent of 29.5 and 119.5% upon soil application and soil + foliar application of Zn fertilizers.”
t0“rice”
Claim · model-written summary
Soil plus foliar zinc increased milled-grain zinc concentration by 119.5%.
- Taxon
- riceOryza sativat0
- Treatment
- soil + foliar application of Zn fertilizerse0
- Outcome
- Zinc concentration in milled grainse0
- Direction
- increasede0
- Value
- 119.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc concentration in milled grains increased to the extent of 29.5 and 119.5% upon soil application and soil + foliar application of Zn fertilizers.”
t0“rice”
Claim · model-written summary
Soil zinc increased rice bran zinc concentration by 21%.
- Taxon
- riceOryza sativat0
- Treatment
- soile0
- Outcome
- rice bran and husk Zn concentra- tione0
- Direction
- increasede0
- Value
- 21e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In rice bran and husk Zn concentra- tion increased to the extent of 21 and 155% and 41 and 373% through soil and soil + foliar application, respec- tively.”
t0“rice”
Claim · model-written summary
Soil plus foliar zinc increased rice bran zinc concentration by 155%.
- Taxon
- riceOryza sativat0
- Treatment
- soil + foliar applicatione0
- Outcome
- rice bran and husk Zn concentra- tione0
- Direction
- increasede0
- Value
- 155%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In rice bran and husk Zn concentra- tion increased to the extent of 21 and 155% and 41 and 373% through soil and soil + foliar application, respec- tively.”
t0“rice”
Claim · model-written summary
Soil zinc increased rice husk zinc concentration by 41%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In rice bran and husk Zn concentra- tion increased to the extent of 21 and 155% and 41 and 373% through soil and soil + foliar application, respec- tively.”
t0“rice”
Claim · model-written summary
Soil plus foliar zinc increased rice husk zinc concentration by 373%.
- Taxon
- riceOryza sativat0
- Treatment
- soil + foliar applicatione0
- Outcome
- husk Zn concentra- tione0
- Direction
- increasede0
- Value
- 373%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In rice bran and husk Zn concentra- tion increased to the extent of 21 and 155% and 41 and 373% through soil and soil + foliar application, respec- tively.”
t0“rice”
Claim · model-written summary
Soil-applied zinc had mean zinc-use efficiency of 0.90%.
- Taxon
- riceOryza sativat0
- Treatment
- soil applicatione0
- Outcome
- Zinc-use efficiencye0
- Value
- 0.90%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc-use efficiency varied from 0.53 to 2.83% with a mean value of 0.90% upon soil application”
t0“rice”
Claim · model-written summary
Soil plus foliar zinc had mean zinc-use efficiency of 2.74%.
- Taxon
- riceOryza sativat0
- Outcome
- Zinc-use efficiencye1
- Value
- 2.74%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1.89 to 4.80% with a mean value of 2.74% upon application of 20 kg Zn as ZnSO .7H O with 4 2 4 2 two foliar spray @ 0.5% ZnSO .7H O solution”
t0“rice”
e1“Zinc-use efficiency”
Claim · model-written summary
Soil plus foliar application is recommended to enrich rice grain zinc and improve zinc-use efficiency.
- Taxon
- riceOryza sativae0
- Outcome
- en- riching rice grain Zn concentrationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil + foliar application of Zn offers a useful means for en- riching rice grain Zn concentrations irrespective of the cultivars tested and contributed towards enhanced Zn-use efficiency by rice.”
The same questions in other papers
zinc atom · nutrient: content · Oryza sativa (rice)Results differ
253 papers in the same direction as this paper · 21 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- no effect
272 papers more in this group
See all 276 papers →zinc atom · yield · Oryza sativa (rice)Results differ
388 papers in the same direction as this paper · 28 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- negative
- no effect
415 papers more in this group
See all 419 papers →cation · nutrient: content · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
soil · nutrient: content · Oryza sativa (rice)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- no effect
2 papers more in this group
See all 6 papers →application · nutrient: content · Oryza sativa (rice)Positive and negative results
211 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- no effect
- negative
218 papers more in this group
See all 222 papers →application · yield · Oryza sativa (rice)Positive and negative results
644 papers in the same direction as this paper · 37 in the opposite direction · 9 reporting no difference from an alternative
- negative
- no effect
- no effect
687 papers more in this group
See all 691 papers →fertilization · nutrient: content · Oryza sativa (rice)Positive and negative results
931 papers in the same direction as this paper · 56 in the opposite direction · 5 reporting no difference from an alternative
- positive
- negative
- no effect
989 papers more in this group
See all 993 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.