Abstract
Irrigated agriculture in arid and semi-arid regions is a practice encouraged to maximize food production, however these regions hesitate a qualitative shortage of water resources, often being necessary the use of saline water, affecting soil and sensitive plants to saline stress. So this study aimed to evaluate emergence, growth, phytomass accumulation and tolerance of the Tetsukabuto hybrid and varieties of pumpkin and squash under salt stress. The experiment was carried out in protected environment (greenhouse), located in the municipality of Pombal, Paraíba, Brazil. Treatments were arranged in completely randomized experimental design with four replicates, in a 5 × 3 factorial scheme, relative to five levels of irrigation water salinity and three genotypes of pumpkin and squash. Pumpkin and squash seedlings were grown on trays of 30 cells with capacity for 0.1 dm3 of substrate, during the first 20 days after sowing, and were monitored for emergence, initial growth, dry matter accumulation and tolerance to salinity. Increment in irrigation water salinity reduces emergence and initial growth of the pumpkin and squash genotypes. The genotypes G2 - ‘Squash cv. Coroa’ and G3 - Tetsukabuto hybrid are more tolerant to salinity than G1 - ‘Pumpkin cv. Jacarezinho’ in the initial growth stage.
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Claims 4
Claim · model-written summary
Increasing irrigation salinity reduced emergence of pumpkin and squash genotypes.
- Taxon
- pumpkin and squashe0
- Treatment
- Increment in irrigation water salinitye0
- Outcome
- emergencee0
- Direction
- reducese0
Not reportedComparator
Verbatim
e0“Increment in irrigation water salinity reduces emergence and initial growth of the pumpkin and squash genotypes.”
Claim · model-written summary
Increasing irrigation salinity reduced initial growth of pumpkin and squash genotypes.
- Taxon
- pumpkin and squashe0
- Treatment
- Increment in irrigation water salinitye0
- Outcome
- initial growthe0
- Direction
- reducese0
Not reportedComparator
Verbatim
e0“Increment in irrigation water salinity reduces emergence and initial growth of the pumpkin and squash genotypes.”
Claim · model-written summary
Squash cv. Coroa was more salt tolerant than Pumpkin cv. Jacarezinho at initial growth.
Verbatim
e0“The genotypes G2 - ‘Squash cv. Coroa’ and G3 - Tetsukabuto hybrid are more tolerant to salinity than G1 - ‘Pumpkin cv. Jacarezinho’ in the initial growth stage.”
Claim · model-written summary
Tetsukabuto hybrid was more salt tolerant than Pumpkin cv. Jacarezinho at initial growth.
Verbatim
e0“The genotypes G2 - ‘Squash cv. Coroa’ and G3 - Tetsukabuto hybrid are more tolerant to salinity than G1 - ‘Pumpkin cv. Jacarezinho’ in the initial growth stage.”
t0“Pumpkin and Squash”
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