Paper · 2016 · AGRICULTURE UPDATE

Water use efficiency, consumptive use and soil moisture extraction pattern of wheat as influenced by irrigation schedules and genotypes

AFZAL AHMAD

8
claims
10
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

An investigation was carried out to study the effect of irrigation schedules and wheat (Triticum aestivum L.) genotypes on yield, consumptive use of water, soil moisture depletion pattern and water use efficiency at the University of Agricultural Sciences, Dharwad (Karnataka) in the year 2001-02. The design of the experiment was split plot with three replications. The wheat crop irrigated six times (I 7 irrigation schedule) recorded significantly highest grain yield (2669 kg ha -1 ) compared to other irrigation schedules. Among the wheat genotypes, DWR-1006 (durum wheat) recorded significantly higher yield (2390 kg ha -1 ) as compared to DWR-162 (aestivum wheat). The maximum consumptive use (485.5 mm) was found with frequently irrigated treatment (I 7 ) while the least consumptive use was registered with I 1 irrigation schedule. Similarly, among the different wheat genotypes, DWR-1006 showed higher consumptive use of water (335.1 mm). The maximum water use efficiency was found with I 2 irrigation schedule and with DWR-162. Wheat is a surface feeder, the maximum amount of moisture was depleted in shallow depth than deeper layer of soil.

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Claims 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Six irrigations gave the highest grain yield of 2669 kg ha -1.

Taxon
wheat cropTriticum aestivume0
Treatment
irrigated six timese0
Outcome
grain yielde0
Direction
higheste0
Value
2669 kg ha -1e0
Comparator
other irrigation schedulese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The wheat crop irrigated six times (I 7 irrigation schedule) recorded significantly highest grain yield (2669 kg ha -1 ) compared to other irrigation schedules.”

✓ located verbatim in the source · abstract, characters 367–527 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

DWR-1006 yielded 2390 kg ha -1, significantly more than DWR-162.

Material
DWR-1006e0
Outcome
yielde0
Direction
highere0
Value
2390 kg ha -1e0
Comparator
DWR-162e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Among the wheat genotypes, DWR-1006 (durum wheat) recorded significantly higher yield (2390 kg ha -1 ) as compared to DWR-162 (aestivum wheat).”

✓ located verbatim in the source · abstract, characters 528–671 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Frequent irrigation produced maximum consumptive water use of 485.5 mm.

Treatment
frequently irrigated treatmente0
Outcome
consumptive usee0
Direction
maximume0
Value
485.5 mme0
Comparator
I 1 irrigation schedulee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum consumptive use (485.5 mm) was found with frequently irrigated treatment (I 7 ) while the least consumptive use was registered with I 1 irrigation schedule.”

✓ located verbatim in the source · abstract, characters 672–840 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 78–83 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

I 1 had the least consumptive water use.

Treatment
I 1 irrigation schedulee0
Outcome
consumptive usee0
Direction
leaste0
Comparator
frequently irrigated treatmente0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum consumptive use (485.5 mm) was found with frequently irrigated treatment (I 7 ) while the least consumptive use was registered with I 1 irrigation schedule.”

✓ located verbatim in the source · abstract, characters 672–840 · show in text ↑
t0

“wheat”

✓ located verbatim in the source · title, characters 78–83 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

DWR-1006 had higher consumptive water use of 335.1 mm.

Taxon
DWR-1006e0
Material
DWR-1006e0
Outcome
consumptive use of watere0
Direction
highere0
Value
335.1 mme0

Verbatim

e0

“DWR-1006 showed higher consumptive use of water (335.1 mm).”

✓ located verbatim in the source · abstract, characters 889–948 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

I 2 irrigation produced maximum water use efficiency.

Taxon
DWR-162e0
Treatment
I 2 irrigation schedulee0
Outcome
water use efficiencye0
Direction
maximume0

Verbatim

e0

“The maximum water use efficiency was found with I 2 irrigation schedule and with DWR-162.”

✓ located verbatim in the source · abstract, characters 949–1038 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

DWR-162 had maximum water use efficiency.

Taxon
DWR-162e0
Material
DWR-162e0
Outcome
water use efficiencye0
Direction
maximume0

Verbatim

e0

“The maximum water use efficiency was found with I 2 irrigation schedule and with DWR-162.”

✓ located verbatim in the source · abstract, characters 949–1038 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Wheat depleted more moisture at shallow than deep soil depth.

Outcome
moisturee0
Direction
maximume0
Comparator
deeper layer of soile0
Setting
shallow depthe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Wheat is a surface feeder, the maximum amount of moisture was depleted in shallow depth than deeper layer of soil.”

✓ located verbatim in the source · abstract, characters 1039–1153 · show in text ↑

irrigation · yield · Triticum aestivum (wheat)Positive and negative results

989 papers: 798 positive, 191 negative or no effect

797 papers in the same direction as this paper · 184 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

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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.