Abstract
Abstract Growth and N‐P‐K uptake in pumpkin (Curcubita moschata Poir.) cv ‘Libby‐Select’ were studied in dryland and irrigated culture. In both moisture regimes, maximum rates of dry matter accumulation occurred between the early and mid‐fruiting developmental stages. Higher total dry matter production with irrigated than dryland culture was primarily associated with increased shoot growth. Concentrations of N, P, and K in foliage generally decreased as pumpkin age increased. Irrigated pumpkins in conjunction with higher total vegetative dry matter accumulated more N, P, and K than dryland pumpkins. Up through early fruit development, N, P, and K accumulation was primarily in leaves and vines and by the late growth stages was almost entirely in the fruit. Total N, P, and K uptake at late fruiting was estimated at 219, 32, and 228 kg/ha in irrigated pumpkins and 180, 21, and 177 kg/ha in dryland pumpkins. Approximately 58% of the N, 52% of the K, and 68% of the P accumulated by late‐fruiting was absorbed by the plant after the early‐fruiting stage in both moisture regimes. Potassium redistribution from vegetative tissues during late fruit development decreased foliar K contents 32% in dryland pumpkins and 21% in irrigated pumpkins. Key words: Curcubita moschataplant nutritionnutrient distribution
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Claims 11
Claim · model-written summary
Dry matter accumulation peaked between early and mid-fruiting under both moisture regimes.
- Organ / stage
- early and mid‐fruiting developmental stagese0
- Outcome
- rates of dry matter accumulatione0
- Direction
- maximume0
CucurbitaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both moisture regimes, maximum rates of dry matter accumulation occurred between the early and mid‐fruiting developmental stages”
t0“pumpkins”
Claim · model-written summary
Irrigation increased total dry matter production relative to dryland culture.
- Treatment
- irrigatede0
- Outcome
- total dry matter productione0
- Direction
- Highere0
- Comparator
- dryland culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher total dry matter production with irrigated than dryland culture was primarily associated with increased shoot growth”
t0“pumpkins”
Claim · model-written summary
Irrigation increased shoot growth relative to dryland culture.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher total dry matter production with irrigated than dryland culture was primarily associated with increased shoot growth”
t0“pumpkins”
Claim · model-written summary
Foliar N, P and K concentrations generally decreased with pumpkin age.
Verbatim
e0“Concentrations of N, P, and K in foliage generally decreased as pumpkin age increased”
Claim · model-written summary
Irrigated pumpkins accumulated more N, P and K than dryland pumpkins.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigated pumpkins in conjunction with higher total vegetative dry matter accumulated more N, P, and K than dryland pumpkins”
Claim · model-written summary
N, P and K accumulation shifted from leaves and vines early to fruit late.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Up through early fruit development, N, P, and K accumulation was primarily in leaves and vines and by the late growth stages was almost entirely in the fruit”
t0“pumpkins”
Claim · model-written summary
Irrigated pumpkins took up 219 kg/ha N at late fruiting.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total N, P, and K uptake at late fruiting was estimated at 219, 32, and 228 kg/ha in irrigated pumpkins and 180, 21, and 177 kg/ha in dryland pumpkins”
Claim · model-written summary
Dryland pumpkins took up 180 kg/ha N at late fruiting.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total N, P, and K uptake at late fruiting was estimated at 219, 32, and 228 kg/ha in irrigated pumpkins and 180, 21, and 177 kg/ha in dryland pumpkins”
Claim · model-written summary
Late-fruiting nutrient uptake occurred substantially after early fruiting.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Approximately 58% of the N, 52% of the K, and 68% of the P accumulated by late‐fruiting was absorbed by the plant after the early‐fruiting stage in both moisture regimes”
t0“pumpkins”
Claim · model-written summary
Potassium redistribution reduced foliar K contents by 32% in dryland pumpkins.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium redistribution from vegetative tissues during late fruit development decreased foliar K contents 32% in dryland pumpkins and 21% in irrigated pumpkins”
Claim · model-written summary
Potassium redistribution reduced foliar K contents by 21% in irrigated pumpkins.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium redistribution from vegetative tissues during late fruit development decreased foliar K contents 32% in dryland pumpkins and 21% in irrigated pumpkins”
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See all 21 papers →irrigation · nutrient: content · Cucurbita (pumpkins)Results agree
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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.