Abstract
The effects of irrigation on grain yield and water use efficiency was studied on two sequence replaced dryland winter wheat (Triticum aestivum L.) cultivars, Changwu 135 (CW, a new cultivar) and Pingliang 40 (PL, an old cultivar). Field experiments were carried out on Changwu country on Loess Plateau, China. Whereas the control plots were not irrigated at all, the treatment plots were irrigated three times, the quantity of irrigation being the same (40 mm) each time: at the jointing stage, at booting, and at flowering. Irrigation increased root biomass in each layer of soil in PL. Irrigation made PL produce greater root biomass in deeper soil, enabling the plants to tap larger quantities of water. CW had a harvest index (HI) greater by 0.11 than that of PL under both conditions, and lower shoot and root biomass, which indicates that more dry matter was transported to productive organs, leading to higher yields than PL. CW consumed more water to produce a unit quantity of root biomass and use irrigation less efficiently showing undercompensation, whereas PL showed overcompensation. Higher yield and greater water use efficiency in wheat appear to be associated with smaller root systems and higher harvest index irrespective of irrigation.
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 9
Claim · model-written summary
Irrigation increased root biomass in every soil layer of PL.
- Taxon
- winter wheat
Triticum aestivumt0 - Material
- PLe0
- Treatment
- Irrigatione0
- Outcome
- root biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation increased root biomass in each layer of soil in PL.”
t0“winter wheat”
Claim · model-written summary
Irrigation gave PL greater root biomass in deeper soil.
- Taxon
- winter wheatTriticum aestivumt0
- Material
- PLe0
- Treatment
- Irrigatione0
- Outcome
- root biomass in deeper soile0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation made PL produce greater root biomass in deeper soil”
t0“winter wheat”
Claim · model-written summary
CW had a harvest index 0.11 greater than PL under both conditions.
- Taxon
- winter wheatTriticum aestivumt0
- Material
- CWe0
- Outcome
- harvest index (HI)e0
- Direction
- greatere0
- Value
- 0.11e0
- Qualifier
- under both conditionse0
- Comparator
- PLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CW had a harvest index (HI) greater by 0.11 than that of PL under both conditions”
t0“winter wheat”
Claim · model-written summary
CW had lower shoot and root biomass than PL.
- Taxon
- winter wheatTriticum aestivumt0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and lower shoot and root biomass”
t0“winter wheat”
e1“CW had a harvest index (HI) greater by 0.11 than that of PL under both conditions, and lower shoot and root biomass, which indicates that more dry matter was transported to productive organs, leading to higher yields than PL. CW consumed more water to produce a unit quantity of root biomass and use irrigation less efficiently showing undercompensation”
Claim · model-written summary
CW had higher yields than PL.
- Taxon
- winter wheatTriticum aestivumt0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leading to higher yields than PL”
t0“winter wheat”
e1“CW had a harvest index (HI) greater by 0.11 than that of PL under both conditions, and lower shoot and root biomass, which indicates that more dry matter was transported to productive organs, leading to higher yields than PL. CW consumed more water to produce a unit quantity of root biomass and use irrigation less efficiently showing undercompensation”
Claim · model-written summary
CW used more water per unit root biomass.
- Taxon
- winter wheatTriticum aestivumt0
- Material
- CWe0
- Outcome
- water to produce a unit quantity of root biomasse0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CW consumed more water to produce a unit quantity of root biomass”
t0“winter wheat”
Claim · model-written summary
CW used irrigation less efficiently.
- Taxon
- winter wheatTriticum aestivumt0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“use irrigation less efficiently showing undercompensation”
t0“winter wheat”
e1“CW had a harvest index (HI) greater by 0.11 than that of PL under both conditions, and lower shoot and root biomass, which indicates that more dry matter was transported to productive organs, leading to higher yields than PL. CW consumed more water to produce a unit quantity of root biomass and use irrigation less efficiently showing undercompensation”
Claim · model-written summary
PL showed overcompensation.
- Taxon
- winter wheatTriticum aestivumt0
- Material
- PLe0
- Outcome
- overcompensatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PL showed overcompensation”
t0“winter wheat”
Claim · model-written summary
Higher wheat yield and water use efficiency were associated with smaller root systems and higher harvest index irrespective of irrigation.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- root systemse0
- Outcome
- Higher yield and greater water use efficiencye0
- Direction
- Highere0
- Qualifier
- irrespective of irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher yield and greater water use efficiency in wheat appear to be associated with smaller root systems and higher harvest index irrespective of irrigation.”
The same questions in other papers
irrigation · growth · Triticum aestivum (wheat)Positive and negative results
176 papers in the same direction as this paper · 61 in the opposite direction · 4 reporting no difference from an alternative
- no effect
- negative
- no effect
238 papers more in this group
See all 242 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.