Phenological Study Of Two Populations Of Cnidoscolusquercifoliuspohl(Faveleira) In Semiarid Region Of Brazil
Journal Title: IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) - Year 2018, Vol 13, Issue 1
Abstract
The phonological patterns of two populations of Cnidoscolus quercifolius Pohl were evaluated in the caatinga biome western Seridó region of Paraiba State, Brazil. Was analysis represented by activity indices for both population growing seasons (fall and sprout) and reproductive (flowering and fruiting), and also studied the intensity index Borchert, who evaluated the flow leaves. Phenology were tested against variations in precipitation, water potential and quantum efficiency of photosystem II. The bud in the two populations occurred in the late dry season and transition into the rainy season, with peak leafing in January and November 2010 and was negatively correlated with rainfall (rs = -0.54 p <0.05). Leaf fall showed the peak phase in October 2009 and 2010, showing a direct relationship with water potential and photosynthetic quantum efficiency. The flowering and fruiting had greater synchrony in the seasonal rainy period, fruit set was positively correlated with precipitation values during the study period (rs = 0.56 p <0.05). The phenological events of C. quercifoliusshow marked seasonality in relation to precipitation, water potential and the quantum efficiency of photosystem II.
Authors and Affiliations
Érica Caldas Silva de Oliveira, Everaldo Oliveira Costa Júnior, Pedro Dantas Fernandes, Karla Patricia de oliveira Luna, ZelmaGlebya Maciel Quirino
Keywords
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- EP ID EP394239
- DOI 10.9790/3008-1301065562
- Views 68
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