Abstract
This study aimed to evaluate the productive characteristics, gas exchange and water use efficiency of the banana 'Prata-Anã' clone Gorutuba under different irrigation intervals associated with different emitter heights. Therefore, a field experiment was conducted in a 2 x 4 factorial scheme: two irrigation intervals (daily and every two days) and four emitter heights (50, 70, 90, and 110 cm) in a completely randomized design with four replicates. The irrigation depths applied by the microsprinkler irrigation system were calculated as a function of crop evapotranspiration. The gas exchanges were evaluated during the period of greatest climatic stress, and the productive characteristics were evaluated at harvest. The economic water use efficiency was determined indirectly by considering the production divided by the applied irrigation depth, which was the same in all the treatments. The instantaneous water use efficiency was estimated with an infrared gas analyzer in the critical climatic period. There was no interaction between the irrigation intervals and emitter heights. The two-day irrigation interval resulted in lower values of leaf temperature and photosynthetically active radiation incident on the leaves, resulting in a higher fruit weight and, consequently, higher yields and a higher water use efficiency. The highest fruit weights were obtained at heights of 70 and 90 cm.
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Claims 7
Claim · model-written summary
Irrigation interval and emitter height did not interact.
- Taxon
- bananat0
- Treatment
- irrigation intervalse0
- Outcome
- interaction between the irrigation intervals and emitter heightse0
- Comparator
- emitter heightse0
Not reportedDirection
Verbatim
e0“There was no interaction between the irrigation intervals and emitter heights.”
t0“banana”
Claim · model-written summary
Two-day irrigation lowered leaf temperature.
Verbatim
e0“The two-day irrigation interval resulted in lower values of leaf temperature and photosynthetically active radiation incident on the leaves”
t0“banana”
e1“two irrigation intervals (daily and every two days)”
Claim · model-written summary
Two-day irrigation lowered photosynthetically active radiation incident on leaves.
Verbatim
e0“The two-day irrigation interval resulted in lower values of leaf temperature and photosynthetically active radiation incident on the leaves”
t0“banana”
e1“two irrigation intervals (daily and every two days)”
Claim · model-written summary
Two-day irrigation increased fruit weight.
Verbatim
e0“The two-day irrigation interval resulted in lower values of leaf temperature and photosynthetically active radiation incident on the leaves, resulting in a higher fruit weight and, consequently, higher yields and a higher water use efficiency.”
t0“banana”
e1“two irrigation intervals (daily and every two days)”
Claim · model-written summary
Two-day irrigation increased yield.
Verbatim
e0“The two-day irrigation interval resulted in lower values of leaf temperature and photosynthetically active radiation incident on the leaves, resulting in a higher fruit weight and, consequently, higher yields and a higher water use efficiency.”
t0“banana”
e1“two irrigation intervals (daily and every two days)”
Claim · model-written summary
Two-day irrigation increased water-use efficiency.
Verbatim
e0“The two-day irrigation interval resulted in lower values of leaf temperature and photosynthetically active radiation incident on the leaves, resulting in a higher fruit weight and, consequently, higher yields and a higher water use efficiency.”
t0“banana”
e1“two irrigation intervals (daily and every two days)”
Claim · model-written summary
Emitter heights of 70 and 90 cm gave the highest fruit weights.
Not reportedComparator
Verbatim
e0“The highest fruit weights were obtained at heights of 70 and 90 cm.”
t0“banana”
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