Abstract
Increasing the atmospheric humidity in growth rooms increased growth of sugar beet in four experiments, of kale in two experiments and of wheat in three experiments. Growth of wheat was unaffected in another three experiments. The effects were variable and did not occur at all stages of growth. In general, decreasing the vapour pressure deficit by 5 mb (e.g. increasing the relative humidity from 70 to 90 per cent at 20 °C) increased dry weight by 20–30 per cent and sometimes by considerably more. Sugar beet and kale were more sensitive than wheat. Relatively, dry weight of tops was affected more than root weight and leaf area was affected more than total dry weight, so net assimilation rate decreased with increase in humidity. Water loss per plant depended on the vapour pressure deficit of the air, leaf area and species; it was only slightly affected by wind speed. Water loss per unit leaf area was less for wheat than for the other species and less for large than for small plants.
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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 13
Claim · model-written summary
Increasing humidity affected growth in sugar beet.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- atmospheric humiditye0
- Outcome
- growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the atmospheric humidity in growth rooms increased growth of sugar beet in four experiments”
Claim · model-written summary
Increasing humidity affected growth in kale.
- Taxon
- kale
Brassica oleracea var. viridise0 - Treatment
- atmospheric humiditye0
- Outcome
- growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the atmospheric humidity in growth rooms increased growth of sugar beet in four experiments, of kale in two experiments”
Claim · model-written summary
Increasing humidity affected growth in wheat.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- atmospheric humiditye0
- Outcome
- growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the atmospheric humidity in growth rooms increased growth of sugar beet in four experiments, of kale in two experiments and of wheat in three experiments”
Claim · model-written summary
Wheat growth was unaffected in another three experiments.
- Taxon
- wheatTriticum aestivume0
- Outcome
- Growthe0
- Direction
- unaffectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth of wheat was unaffected in another three experiments”
Claim · model-written summary
A 5 mb lower vapour pressure deficit generally increased dry weight by 20–30 per cent.
- Treatment
- decreasing the vapour pressure deficit by 5 mbe0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 20–30 per cente0
Not reportedTaxonComparator
Verbatim
e0“decreasing the vapour pressure deficit by 5 mb (e.g. increasing the relative humidity from 70 to 90 per cent at 20 °C) increased dry weight by 20–30 per cent”
Claim · model-written summary
Sugar beet and kale were more sensitive than wheat.
- Taxon
- Sugar beetBeta vulgaris subsp. vulgarise0
- Outcome
- more sensitivee0
- Direction
- more sensitivee0
- Comparator
- wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sugar beet and kale were more sensitive than wheat”
Claim · model-written summary
Humidity affected top dry weight more than root weight.
Not reportedTaxon
Verbatim
e0“dry weight of tops was affected more than root weight”
Claim · model-written summary
Humidity affected leaf area more than total dry weight.
Not reportedTaxon
Verbatim
e0“leaf area was affected more than total dry weight”
Claim · model-written summary
Net assimilation rate decreased with increasing humidity.
Not reportedTaxon
Verbatim
e0“net assimilation rate decreased with increase in humidity”
Claim · model-written summary
Water loss per plant depended on vapour pressure deficit, leaf area and species.
Not reportedTaxonDirection
Verbatim
e0“Water loss per plant depended on the vapour pressure deficit of the air, leaf area and species”
Claim · model-written summary
Wind speed only slightly affected water loss.
Not reportedTaxonDirection
Verbatim
e0“it was only slightly affected by wind speed”
Claim · model-written summary
Water loss per leaf area was lower in wheat than in other species.
- Taxon
- wheatTriticum aestivume0
- Outcome
- Water loss per unit leaf areae0
- Direction
- lesse0
- Comparator
- the other speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water loss per unit leaf area was less for wheat than for the other species”
Claim · model-written summary
Water loss per leaf area was lower in large than small plants.
Not reportedTaxon
Verbatim
e0“less for large than for small plants”
The same questions in other papers
humidity · growth · Beta vulgaris (beet)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
humidity · growth · Brassica oleracea (wild cabbage)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
1 paper more in this group
See all 5 papers →humidity · growth · Triticum aestivum (wheat)Positive and negative results
6 papers in the same direction as this paper · 5 in the opposite direction
- negative
- no effect
- no effect
8 papers more in this group
See all 12 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.