Abstract
Dry matter and nitrogen (N) accumulation of three field pea cultivars having different morphological characters were compared under different levels of nitrogen in a field trial conducted in 1996/1997. The cultivars used were Allure (semi-leafless, semi-erect), Beacon (conventional, determinate) and Whero (conventional, indeterminate and scrambling). The N rates were 0, 30 and 60 kg/ha applied at 26 days after sowing (DAS). Shoot growth was measured at fortnightly intervals beginning from the initiation of the N treatments, while roots were sampled at 26, 40, 54 and 82 DAS. Cultivar differences in shoot growth were usually significant while N application had no influence on shoot dry matter accumulation. Throughout most of the growing season, Allure produced the highest shoot dry weight. Application of N did not affect root dry matter content at any stage for all cultivars. Beacon produced the lowest root weight at 26 and 40 DAS. However, at later stages (54 and 82 DAS) there were no significant differences among the cultivars. Allure had higher shoot to root ratios than the other cultivars. Nitrogen had no significant effect on either shoot or root N accumulation. However, cultivar differences were observed in N concentration and total N content of shoots. Allure had a lower N concentration than the other cultivars throughout most of the experimental period. Initially Beacon contained a significantly lower N content in the shoot compared with the other two cultivars. However shoot N gain in Beacon increased gradually and approached that of Allure at later growth stages. The N partitioning between shoot and root of peas was not affected by either cultivar or N application during the growing period.
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Claims 13
Claim · model-written summary
Cultivar differences in shoot growth were usually significant.
- Taxon
- pea (Pisum sativum L.)
Lathyrus oleraceust0 - Outcome
- shoot growthe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e1“Cultivar differences in shoot growth were usually significant”
Claim · model-written summary
N application had no influence on shoot dry matter accumulation.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Treatment
- N applicatione2
- Outcome
- shoot dry matter accumulatione2
- Direction
- no influencee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e2“N application had no influence on shoot dry matter accumulation”
Claim · model-written summary
Allure produced the highest shoot dry weight throughout most of the growing season.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Material
- Alluree3
- Outcome
- shoot dry weighte3
- Direction
- higheste3
- Qualifier
- Throughout most of the growing seasone3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e3“Throughout most of the growing season, Allure produced the highest shoot dry weight”
Claim · model-written summary
Application of N did not affect root dry matter content at any stage in any cultivar.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Treatment
- Application of Ne4
- Outcome
- root dry matter contente4
- Direction
- did not affecte4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e4“Application of N did not affect root dry matter content at any stage for all cultivars”
Claim · model-written summary
Beacon produced the lowest root weight at 26 and 40 days after sowing.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Material
- Beacone5
- Organ / stage
- roote5
- Outcome
- root weighte5
- Direction
- loweste5
- Qualifier
- 26 and 40 DASe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e5“Beacon produced the lowest root weight at 26 and 40 DAS”
Claim · model-written summary
At later stages (54 and 82 days after sowing) there were no significant differences in root weight among cultivars.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Outcome
- root weighte5
- Qualifier
- later stages (54 and 82 DAS)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e5“Beacon produced the lowest root weight at 26 and 40 DAS”
e6“However, at later stages (54 and 82 DAS) there were no significant differences among the cultivars”
Claim · model-written summary
Nitrogen had no significant effect on shoot or root N accumulation.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Treatment
- Nitrogene7
- Outcome
- shoot or root N accumulatione7
- Direction
- no significant effecte7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e7“Nitrogen had no significant effect on either shoot or root N accumulation”
Claim · model-written summary
Cultivar differences were observed in shoot N concentration and total shoot N content.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Organ / stage
- shootse1
- Outcome
- N concentration and total N contente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e1“However, cultivar differences were observed in N concentration and total N content of shoots”
Claim · model-written summary
Allure had a lower shoot N concentration than the other cultivars throughout most of the experimental period.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Material
- Alluree2
- Outcome
- N concentratione2
- Direction
- lowere2
- Qualifier
- throughout most of the experimental periode2
- Comparator
- the other cultivarse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e2“Allure had a lower N concentration than the other cultivars throughout most of the experimental period”
Claim · model-written summary
Initially Beacon had a significantly lower shoot N content than the other two cultivars.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Material
- Beacone3
- Organ / stage
- shoote3
- Outcome
- N content in the shoote3
- Direction
- lowere3
- Qualifier
- Initiallye3
- Comparator
- the other two cultivarse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e3“Initially Beacon contained a significantly lower N content in the shoot compared with the other two cultivars”
Claim · model-written summary
Shoot N gain in Beacon increased gradually and approached that of Allure at later growth stages.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Material
- Beacone4
- Outcome
- shoot N gaine4
- Direction
- increased graduallye4
- Qualifier
- at later growth stagese4
- Comparator
- Alluree4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e4“However shoot N gain in Beacon increased gradually and approached that of Allure at later growth stages”
Claim · model-written summary
N application and cultivar did not affect N partitioning between shoot and root during the growing period.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Treatment
- N applicatione5
- Outcome
- N partitioning between shoot and roote5
- Direction
- not affectede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e5“The N partitioning between shoot and root of peas was not affected by either cultivar or N application during the growing period”
Claim · model-written summary
Allure had higher shoot to root ratios than the other cultivars.
- Taxon
- pea (Pisum sativum L.)Lathyrus oleraceust0
- Material
- Alluree6
- Outcome
- shoot to root ratiose6
- Direction
- highere6
- Comparator
- the other cultivarse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pea (Pisum sativum L.)”
e6“Allure had higher shoot to root ratios than the other cultivars”
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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.