Abstract
ABSTRACT The objective of this study was to evaluate the gas exchange, growth and production of yellow passion fruit cv. BRS GA1, as a function of irrigation management strategies with saline water and potassium doses. The experiment was conducted under field conditions in São Domingos, PB, Brazil. A randomized block design was used in a 6 * 2 factorial scheme. The treatments consisted of six strategies of irrigation with saline waters (irrigation with low-salinity water throughout the crop cycle - SE; irrigation with high-salinity water in the vegetative stage - VE; flowering stage - FL; fruiting stage - FR; in the successive vegetative/flowering stages - VE/FL; vegetative/fruiting stages - VE/FR) and two doses of potassium (100 and 130% of the K2O recommendation), with four replicates and four plants per plot. The 100% dose corresponded to 60 g of K 2O plant-1 year-1. The effects of using high-salinity water (3.2 dS m-1) alternated with low-salinity water (1.3 dS m-1) were evaluated in different stages of the cultivation cycle. Irrigation with saline water in the fruiting stage promoted an increase in intercellular CO2 concentration and decrease in CO2 assimilation, with effects of non-stomatal origin standing out as limiting factors of photosynthetic efficiency. The highest CO 2 assimilation rate in plants subjected to water salinity of 1.3 dS m-1 throughout the cycle resulted in increments in the number of fruits and in the production per plant of the passion fruit cv. BRS GA1.
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Claims 6
Claim · model-written summary
Saline irrigation during fruiting increased intercellular CO2 concentration.
- Taxon
- yellow passion fruite1
- Material
- BRS GA1e1
- Treatment
- Irrigation with saline water in the fruiting stagee0
- Outcome
- intercellular CO2 concentratione0
- Direction
- increasee0
- Setting
- São Domingos, PB, Brazile2
Not reportedComparator
Verbatim
e0“Irrigation with saline water in the fruiting stage promoted an increase in intercellular CO2 concentration and decrease in CO2 assimilation”
e1“yellow passion fruit cv. BRS GA1”
e2“under field conditions in São Domingos, PB, Brazil.”
Claim · model-written summary
Saline irrigation during fruiting decreased CO2 assimilation.
- Taxon
- yellow passion fruite1
- Material
- BRS GA1e1
- Treatment
- Irrigation with saline water in the fruiting stagee0
- Outcome
- CO2 assimilatione0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“Irrigation with saline water in the fruiting stage promoted an increase in intercellular CO2 concentration and decrease in CO2 assimilation”
e1“yellow passion fruit cv. BRS GA1”
Claim · model-written summary
Non-stomatal effects stood out as limiting photosynthetic efficiency under saline irrigation during fruiting.
Verbatim
e0“with effects of non-stomatal origin standing out as limiting factors of photosynthetic efficiency.”
e1“yellow passion fruit cv. BRS GA1”
Claim · model-written summary
Water salinity of 1.3 dS m-1 throughout the cycle gave the highest CO2 assimilation rate.
- Taxon
- passion fruit
Passiflora edulise0 - Material
- BRS GA1e0
- Treatment
- water salinity of 1.3 dS m-1 throughout the cyclee0
- Outcome
- CO 2 assimilation ratee0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest CO 2 assimilation rate in plants subjected to water salinity of 1.3 dS m-1 throughout the cycle resulted in increments in the number of fruits and in the production per plant of the passion fruit cv. BRS GA1.”
Claim · model-written summary
The highest CO2 assimilation under low salinity throughout the cycle resulted in increased fruit number and production per plant.
- Taxon
- passion fruitPassiflora edulise0
- Material
- BRS GA1e0
- Treatment
- water salinity of 1.3 dS m-1 throughout the cyclee0
- Outcome
- number of fruits and in the production per plante0
- Direction
- incrementse0
- Qualifier
- highest CO 2 assimilation ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest CO 2 assimilation rate in plants subjected to water salinity of 1.3 dS m-1 throughout the cycle resulted in increments in the number of fruits and in the production per plant of the passion fruit cv. BRS GA1.”
Claim · model-written summary
Potassium does not attenuate salt stress in yellow passion fruit under irrigation management strategies.
Not reportedComparator
Verbatim
t0“POTASSIUM DOES NOT ATTENUATE SALT STRESS IN YELLOW PASSION FRUIT UNDER IRRIGATION MANAGEMENT STRATEGIES”
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See all 6 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.