Ecophysiology of Moringa oleifera Lam in function of different rainfall conditions

Drought conditions cause behavioral changes in plants, which proportions vary according to genotype, duration, severity and stage of development. One of their defense strategies is the accumulation of organic solutes, decreasing their osmotic potential to absorb water. This study aimed to compare the levels of photosynthetic pigments and soluble proteins in Moringa oleifera Lam plants grown in different rainfall conditions. Moringa leaves were collected in Recife-PE, with 227 mm.month-¹ as average month rainfall during plant growth and in Pirauá, with 87 mm.month-¹ in the same period, located at Natuba-PB. Solutes were quantified from leaf extraction in 80% acetone, followed by analysis at wavelengths 447, 595, 645 and 663 nm. Data were submitted to ANOVA and means were compared by Tukey test (p <0.05). Moringa extracts from Pirauá presented the lowest chlorophyll b content; therefore carotenoid and soluble proteins concentration was higher than the extracts from Recife. Moringa oleifera plants grown in sites with lowest rainfall regime may have their higher soluble proteins and carotenoids accumulation as a physiological adaptation to prolonged water scarcity

Mapping of regional land-use/land-cover distribution according to soil types in the semiarid region of Pernambuco State, Brazil

Geotechnology is a tool with high potential for management, processing, analysis and automatic representation of georeferenced data, providing fast and accurate information about land cover with low cost. Therefore, this study aimed to quantify the land-cover/land-use area of three mesoregions of Pernambuco State, Brazil. We used cross-checking analysis of the land-cover/ land-use and soil type classification maps for Agreste, São Francisco, and Sertão mesoregions to obtain the most predominant soil-type/land-use classifications. The main classes observed in these mesoregions were: Dense Caatinga under Ustorthent (497,841 ha) and Utilsoils (291,984 ha. In the Agreste mesoregion was bare soil under Ustalfs (316,214 ha). Finally, in the sertão mesoregion the most important class was the Dense Caatinga under Ustorthent (497,841 ha) The results obtained in this study could be helpful as a tool to guide new modeling work in the semiarid region of Pernambuco State in Brazil

Ecophysiology of Moringa oleifera Lam in function of different rainfall conditions

Drought conditions cause behavioral changes in plants, which proportions vary according to genotype, duration, severity and stage of development. One of their defense strategies is the accumulation of organic solutes, decreasing their osmotic potential to absorb water. This study aimed to compare the levels of photosynthetic pigments and soluble proteins in Moringa oleifera Lam plants grown in different rainfall conditions. Moringa leaves were collected in Recife-PE, with 227 mm.month-¹ as average month rainfall during plant growth and in Pirauá, with 87 mm.month-¹ in the same period, located at Natuba-PB. Solutes were quantified from leaf extraction in 80% acetone, followed by analysis at wavelengths 447, 595, 645 and 663 nm. Data were submitted to ANOVA and means were compared by Tukey test (p <0.05). Moringa extracts from Pirauá presented the lowest chlorophyll b content; therefore carotenoid and soluble proteins concentration was higher than the extracts from Recife. Moringa oleifera plants grown in sites with lowest rainfall regime may have their higher soluble proteins and carotenoids accumulation as a physiological adaptation to prolonged water scarcity

Mapping of regional land-use/land-cover distribution according to soil types in the semiarid region of Pernambuco State, Brazil

Geotechnology is a tool with high potential for management, processing, analysis and automatic representation of georeferenced data, providing fast and accurate information about land cover with low cost. Therefore, this study aimed to quantify the land-cover/land-use area of three mesoregions of Pernambuco State, Brazil. We used cross-checking analysis of the land-cover/ land-use and soil type classification maps for Agreste, São Francisco, and Sertão mesoregions to obtain the most predominant soil-type/land-use classifications. The main classes observed in these mesoregions were: Dense Caatinga under Ustorthent (497,841 ha) and Utilsoils (291,984 ha. In the Agreste mesoregion was bare soil under Ustalfs (316,214 ha). Finally, in the sertão mesoregion the most important class was the Dense Caatinga under Ustorthent (497,841 ha) The results obtained in this study could be helpful as a tool to guide new modeling work in the semiarid region of Pernambuco State in Brazil