Abstract
Abstract No NO 3 accumulated at any photoperiod in leaves or roots of table beets when N was not added to the soil. When N was applied at rates from 100 to 400 lb./acre less NO 3 accumulated in both plant parts as photoperiod was extended from 8 to 20 hr. Addition of N to the soil increased the total N content of leaves and roots. Larger total N concn were observed in plants grown under an 8-hr photoperiod than in plants grown under longer photoperiods. Various radish, spinach, and snap bean cultivars were grown at different soil N rates and harvested 0, 6, and 12 hr after the initiation of the light period. Radish leaves and snap bean pods contained less NO 3 -N as the plants were harvested further into the light period. Nitrate concn of radish roots and spinach leaves were not changed by harvesting at 6 AM, 12 noon or 6 PM. The addition of N fertilizer increased the NO 3 -N concn of radish and spinach but decreased the NO 3 -N concn of snap bean pods. Cultivars differed in their capacity to accumulate NO 3 in all 3 species. Nitrite accumulation was proportional to the quantity of NO 3 in the tissue.
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Claims 13
Claim · model-written summary
Without soil nitrogen, table beet leaves and roots accumulated no nitrate at any photoperiod.
- Taxon
- table beets
Beta vulgaris subsp. vulgarise0 - Organ / stage
- leaves or rootse0
- Treatment
- N was not added to the soile0
- Outcome
- NO 3 accumulatede0
- Direction
- Noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No NO 3 accumulated at any photoperiod in leaves or roots of table beets when N was not added to the soil.”
Claim · model-written summary
With nitrogen applied, extending photoperiod from 8 to 20 hours reduced nitrate in beet leaves and roots.
- Taxon
- table beetsBeta vulgaris subsp. vulgarise1
- Treatment
- photoperiod was extended from 8 to 20 hre0
- Outcome
- NO 3 accumulated in both plant partse0
- Direction
- lesse0
- Qualifier
- N was applied at rates from 100 to 400 lb./acree0
- Comparator
- 8e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When N was applied at rates from 100 to 400 lb./acre less NO 3 accumulated in both plant parts as photoperiod was extended from 8 to 20 hr.”
e1“leaves or roots of table beets”
Claim · model-written summary
Adding soil nitrogen increased total nitrogen in beet leaves and roots.
- Taxon
- table beetsBeta vulgaris subsp. vulgarise1
- Treatment
- Addition of N to the soile0
- Outcome
- total N content of leaves and rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of N to the soil increased the total N content of leaves and roots.”
e1“leaves or roots of table beets”
Claim · model-written summary
Eight-hour photoperiods produced higher total nitrogen concentrations than longer periods in beets.
- Taxon
- table beetsBeta vulgaris subsp. vulgarise1
- Treatment
- 8-hr photoperiode0
- Outcome
- total N concne0
- Direction
- Largere0
- Comparator
- longer photoperiodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Larger total N concn were observed in plants grown under an 8-hr photoperiod than in plants grown under longer photoperiods.”
e1“leaves or roots of table beets”
Claim · model-written summary
Later harvest in the light period reduced nitrate nitrogen in radish leaves.
- Taxon
- Radish
Raphanus sativuse0 - Organ / stage
- leavese0
- Treatment
- harvested further into the light periode0
- Outcome
- NO 3 -Ne0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Radish leaves and snap bean pods contained less NO 3 -N as the plants were harvested further into the light period.”
Claim · model-written summary
Later harvest in the light period reduced nitrate nitrogen in snap bean pods.
Verbatim
e0“Radish leaves and snap bean pods contained less NO 3 -N as the plants were harvested further into the light period.”
Claim · model-written summary
Harvest time did not change nitrate in radish roots.
- Taxon
- radishRaphanus sativuse0
- Treatment
- harvesting at 6 AM, 12 noon or 6 PMe0
- Outcome
- Nitrate concn of radish rootse0
- Direction
- not changede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate concn of radish roots and spinach leaves were not changed by harvesting at 6 AM, 12 noon or 6 PM.”
Claim · model-written summary
Harvest time did not change nitrate in spinach leaves.
- Taxon
- spinach
Spinacia oleraceae0 - Treatment
- harvesting at 6 AM, 12 noon or 6 PMe0
- Outcome
- spinach leavese0
- Direction
- not changede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate concn of radish roots and spinach leaves were not changed by harvesting at 6 AM, 12 noon or 6 PM.”
Claim · model-written summary
Nitrogen fertilizer increased nitrate nitrogen in radish.
- Taxon
- radishRaphanus sativuse0
- Treatment
- N fertilizere0
- Outcome
- NO 3 -N concne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of N fertilizer increased the NO 3 -N concn of radish and spinach”
Claim · model-written summary
Nitrogen fertilizer increased nitrate nitrogen in spinach.
- Taxon
- spinachSpinacia oleraceae0
- Treatment
- N fertilizere0
- Outcome
- NO 3 -N concne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of N fertilizer increased the NO 3 -N concn of radish and spinach”
Claim · model-written summary
Nitrogen fertilizer decreased nitrate nitrogen in snap bean pods.
Not reportedComparator
Verbatim
e0“decreased the NO 3 -N concn of snap bean pods.”
e1“The addition of N fertilizer increased the NO 3 -N concn of radish and spinach”
Claim · model-written summary
Cultivars differed in nitrate accumulation across all three species.
Verbatim
e0“Cultivars differed in their capacity to accumulate NO 3 in all 3 species.”
e1“Various radish, spinach, and snap bean cultivars”
Claim · model-written summary
Nitrite accumulation was proportional to tissue nitrate quantity.
Not reportedDirection
Verbatim
e0“Nitrite accumulation was proportional to the quantity of NO 3 in the tissue.”
e1“Various radish, spinach, and snap bean cultivars”
The same questions in other papers
mycorrhiza · nutrient: content · Raphanus sativus (radish)Positive and negative results
1 in the opposite direction
- positive
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.