Abstract
Climate changes impose adoption of water-saving techniques to improve the sustainability of irrigated rice systems. This study was aimed, by a two-years side-by-side comparison, at verifying the hypothesis whether “Alternate Wetting and Drying” (AWD) affects the concentrations of health-related compounds and minerals in brown grains of three japonica rice (Oryza sativa L.) cvs (‘Baldo’, ‘Gladio’, and ‘Loto’) usually grown in temperate areas in continuous flooding (CF). Due to the rotational turns in water distribution imposed by local authorities and to the weather behavior, different AWD timing and severity occurred in the two years of the study. AWD induced in both seasons yield losses in ‘Baldo’ and ‘Gladio’ but not in ‘Loto’. In the brown grains of ‘Loto’, AWD increased the concentrations of total tocols, γ-oryzanol, flavonoids, and the antioxidant activity. AWD affected the concentrations of minerals, particularly increasing copper, cadmium and nickel, and decreasing manganese, arsenic and zinc. In the sensitive cultivars, ‘Baldo’ and ‘Gladio’, AWD seems to affect plant yield, rather than for severity of the dry period, for prolonged absence of ponded water that exposes plants to cooler temperatures. The selection of suitable cultivars, like ‘Loto’, tolerant to AWD-related stresses, could combine environmental, yield-related, and nutritional benefits improving the product quality.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7
Claim · model-written summary
AWD reduced yield in Baldo and Gladio in both seasons.
- Taxon
- rice
Oryza sativat0 - Material
- ‘Baldo’ and ‘Gladio’e0
- Treatment
- AWDe0
- Outcome
- yield lossese0
- Direction
- lossese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AWD induced in both seasons yield losses in ‘Baldo’ and ‘Gladio’ but not in ‘Loto’”
t0“Rice”
Claim · model-written summary
AWD did not cause yield losses in Loto.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AWD induced in both seasons yield losses in ‘Baldo’ and ‘Gladio’ but not in ‘Loto’”
t0“Rice”
Claim · model-written summary
AWD increased four phytochemical measures in Loto brown grains.
- Taxon
- riceOryza sativat0
- Material
- ‘Loto’e0
- Treatment
- AWDe0
- Outcome
- concentrations of total tocols, γ-oryzanol, flavonoids, and the antioxidant activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the brown grains of ‘Loto’, AWD increased the concentrations of total tocols, γ-oryzanol, flavonoids, and the antioxidant activity”
t0“Rice”
Claim · model-written summary
AWD increased grain copper, cadmium and nickel concentrations.
- Taxon
- riceOryza sativat0
- Treatment
- AWDe0
- Outcome
- copper, cadmium and nickele0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AWD affected the concentrations of minerals, particularly increasing copper, cadmium and nickel, and decreasing manganese, arsenic and zinc”
t0“Rice”
Claim · model-written summary
AWD decreased grain manganese, arsenic and zinc concentrations.
- Taxon
- riceOryza sativat0
- Treatment
- AWDe0
- Outcome
- manganese, arsenic and zince0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AWD affected the concentrations of minerals, particularly increasing copper, cadmium and nickel, and decreasing manganese, arsenic and zinc”
t0“Rice”
Claim · model-written summary
Prolonged absence of ponded water and cooler temperatures may explain sensitive cultivar yield effects.
- Taxon
- riceOryza sativat0
- Outcome
- plant yielde0
- Qualifier
- prolonged absence of ponded water that exposes plants to cooler temperaturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AWD seems to affect plant yield, rather than for severity of the dry period, for prolonged absence of ponded water that exposes plants to cooler temperatures”
t0“Rice”
Claim · model-written summary
The authors recommend selecting AWD-tolerant cultivars such as Loto.
- Taxon
- riceOryza sativat0
- Material
- ‘Loto’e0
- Outcome
- selection of suitable cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The selection of suitable cultivars, like ‘Loto’, tolerant to AWD-related stresses, could combine environmental, yield-related, and nutritional benefits improving the product quality”
t0“Rice”
The same questions in other papers
irrigation · quality: phytochemicals · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
irrigation · yield · Oryza sativa (rice)Positive and negative results
264 papers in the same direction as this paper · 906 in the opposite direction
- positive
- positive
- positive
1,167 papers more in this group
See all 1,171 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.