2014
DOI: 10.15446/abc.v20n1.42196
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PHOTOSYNTHETIC PERFORMANCE AND LEAF WATER POTENTIAL OF GULUPA (Passiflora edulis Sims, PASSIFLORACEAE) IN THE REPRODUCTIVE PHASE IN THREE LOCATIONS IN THE COLOMBIAN ANDES

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Cited by 16 publications
(21 citation statements)
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“…MPa entre 8:00-12:00 h (figura 3), similar a lo reportado para otras pasifloras donde valores por debajo de -0,09 MPa indican plantas sin estrés por déficit hídrico, y valores entre -3,1 a -3,7 MPa indican estrés por déficit hídrico (Pérez-Martínez y Melgarejo, 2015;Turner et al, 1996).…”
Section: Psiiunclassified
“…MPa entre 8:00-12:00 h (figura 3), similar a lo reportado para otras pasifloras donde valores por debajo de -0,09 MPa indican plantas sin estrés por déficit hídrico, y valores entre -3,1 a -3,7 MPa indican estrés por déficit hídrico (Pérez-Martínez y Melgarejo, 2015;Turner et al, 1996).…”
Section: Psiiunclassified
“…The curves were generated reducing PFD in 10 steps from 2,000 to 0 μmol photons m −2 s −1 at a CO 2 concentration of 400 ppm, temperature of 18°C, and relative air humidity of 62%; within each step of changing light intensity, the data were registered when stable values were reached (ADC BioScientific, UK). The curves were adjusted to the rectangular hyperbolic model of Michaelis-Menten (Givnish et al, 2004;Pérez-Martínez and Melgarejo, 2015;Rodríguez et al, 2019b;Solarte et al, 2010) using the equation: A = [(Amax PFD/K+ PFD)]-Rd, where A is the photosynthetic rate; Amax is the rate of photosynthesis at full light saturation; K is the constant for light saturation below half of the natural photon flux (PFD), and Rd is the respiration rate in the dark. The light compensation point (Ic) was calculated with the equation (K x Rd)/(Amax-Rd).…”
Section: Variables Of Growth Mineral Deficiency Symptoms Photosynthmentioning
confidence: 99%
“…The light compensation point (Ic) was calculated with the equation (K x Rd)/(Amax-Rd). Apparent quantum efficiency (φPFD) was based on the slope of the linear regression corresponding to the number of photons absorbed by the leaves in order to fix 1 mol of CO 2 (Pérez- Martínez and Melgarejo, 2015;Rodríguez et al, 2019b;Solarte et al, 2010).…”
Section: Variables Of Growth Mineral Deficiency Symptoms Photosynthmentioning
confidence: 99%
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“…En cuanto a la fisiología del cultivo, se señalan valores referenciales de plantas de gulupa (Passiflora edulis Sims) en las fases de floración y fructificación en condiciones normales de desarrollo, en el caso de transpiración, rangos entre 1 a 5 μmol m 2 s -1 , conductancia estomática entre 100 a 250 μmol m 2 s -1 y fotosíntesis neta entre 10 a 20 μmol m 2 s -1 (Pérez y Melgarejo, 2015). Esto se debe a que el intercambio de gases se lleva a cabo a través de los estomas y responde a diversos factores ambientales, entre los que destacan la luz, concentración de CO 2 y disponibilidad de nitrógeno (Schulze et al, 2005).…”
unclassified