Abstract
Field studies were performed during rabi seasons of 2013–14 and 2014–15 at Indian Agricultural Research Institute, New Delhi to examine the influence of sowing time and Zn application on productivity and Zn use efficiency of wheat [Triticum aestivum (L.) emend. Fiori & Paol.] varieties. Experiment was carried out in split-plot design and replicated thrice. Two factors sowing times (normal and very late) and wheat varieties (HD 2967, WR 544 and HD 3059) were taken in main-plots whereas third factor i.e. ZnSO4.7H2O application (control, 25 kg/ha soil application, three foliar sprays @ 0.5% at boot, anthesis and grain filling stage, 25 kg/ha soil application + one foliar spray @ 0.5% at anthesis) was kept in sub-plots. Results showed that very late sowing reduced grain, straw and biological yields of wheat though increased harvest index in both study years. Significant interaction was perceived between sowing time and varieties for grain yield with HD 2967 recorded highest grain yield (5.0 t/ha) under normal sowing. It also exhibited highest yield reduction (18%) owing to very late sowing. On an average of two years, heat resistant varieties exhibited lower grain yield reduction (5.4% in WR 544 and 2.3% in HD 3059) under delayed planting. Non-significant effect of Zn was seen on grain, straw and biological yields though numerically higher value of above traits was found with soil application of ZnSO4. 7H2O @ 25 kg/ha + foliar spray of 0.5% ZnSO4at anthesis stage treatment. Three foliar sprays of 0.5% ZnSO4 at boot, anthesis and grain filling stage has registered the highest PFP as well as highest ZnMEI of externally applied Zn fertilizer though it was very closely followed by other Zn levels.
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Claims 9
Claim · model-written summary
Very late sowing reduced wheat grain, straw and biological yields.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- very late sowinge0
- Outcome
- grain, straw and biological yieldse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“very late sowing reduced grain, straw and biological yields of wheat”
Claim · model-written summary
Very late sowing increased harvest index in both years.
- Taxon
- wheatTriticum aestivume1
- Treatment
- very late sowinge1
- Outcome
- harvest indexe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased harvest index in both study years”
e1“very late sowing reduced grain, straw and biological yields of wheat”
Claim · model-written summary
HD 2967 had the highest grain yield, 5.0 t/ha, under normal sowing.
- Taxon
- WheatTriticum aestivumt0
- Material
- HD 2967e0
- Treatment
- normal sowinge0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 5.0 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HD 2967 recorded highest grain yield (5.0 t/ha) under normal sowing”
e1“Significant interaction was perceived between sowing time and varieties for grain yield”
t0“Wheat (Triticum aestivum L.)”
Claim · model-written summary
HD 2967 showed an 18% yield reduction with very late sowing.
- Taxon
- WheatTriticum aestivumt0
- Material
- HD 2967e1
- Treatment
- very late sowinge0
- Outcome
- yield reductione0
- Direction
- reductione0
- Value
- 18%e0
- Comparator
- normal sowinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also exhibited highest yield reduction (18%) owing to very late sowing”
e1“HD 2967 recorded highest grain yield (5.0 t/ha) under normal sowing”
t0“Wheat”
Claim · model-written summary
WR 544 had a 5.4% grain yield reduction under delayed planting.
- Taxon
- WheatTriticum aestivumt0
- Material
- WR 544e0
- Treatment
- delayed plantinge0
- Outcome
- grain yield reductione0
- Direction
- lowere0
- Value
- 5.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower grain yield reduction (5.4% in WR 544 and 2.3% in HD 3059) under delayed planting”
t0“Wheat”
Claim · model-written summary
HD 3059 had a 2.3% grain yield reduction under delayed planting.
- Taxon
- WheatTriticum aestivumt0
- Material
- HD 3059e0
- Treatment
- delayed plantinge0
- Outcome
- grain yield reductione0
- Direction
- lowere0
- Value
- 2.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower grain yield reduction (5.4% in WR 544 and 2.3% in HD 3059) under delayed planting”
t0“Wheat”
Claim · model-written summary
Zinc treatment had no significant effect on grain, straw and biological yields.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Zne0
- Outcome
- grain, straw and biological yieldse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Non-significant effect of Zn was seen on grain, straw and biological yields”
t0“Wheat”
Claim · model-written summary
Soil plus foliar zinc treatment gave numerically higher grain, straw and biological yields.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- soil application of ZnSO4. 7H2O @ 25 kg/ha + foliar spray of 0.5% ZnSO4at anthesis stagee0
- Outcome
- grain, straw and biological yieldse1
- Direction
- numerically highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“numerically higher value of above traits was found with soil application of ZnSO4. 7H2O @ 25 kg/ha + foliar spray of 0.5% ZnSO4at anthesis stage treatment”
e1“Non-significant effect of Zn was seen on grain, straw and biological yields”
t0“Wheat”
Claim · model-written summary
Three foliar sprays gave the highest partial factor productivity and Zn mobilization efficiency.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Three foliar sprays of 0.5% ZnSO4 at boot, anthesis and grain filling stagee0
- Outcome
- PFP as well as highest ZnMEIe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three foliar sprays of 0.5% ZnSO4 at boot, anthesis and grain filling stage has registered the highest PFP as well as highest ZnMEI of externally applied Zn fertilizer”
t0“Wheat”
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