Avaliação de populações de Butia capitata de Santa Vitória do Palmar

Abstract

RESUMO -O gêneroButia pertence à família Arecaceae e possui cinco espécies com ocorrência no Rio Grande do Sul. A espécie Butia capitata está recebendo atenção especial, não só pelo seu uso no consumo in natura como também em formas processadas. No entanto, mesmo sendo uma espécie que tem sua utilização registrada desde os tempos pré-históricos, vem sendo explorada apenas de modo extrativista, como a maioria das espécies de frutíferas nativas. Além disso, a espécie está seriamente comprometida em médio prazo pela ausência de regeneração natural e com risco muito alto de extinção num futuro próximo. Nesse sentido, o objetivo deste trabalho foi comparar os frutos, a partir de parâmetros químicos e físicos, e também observar os dados produtivos das plantas de três populações de butiazeiros do município PERFORMANCE OF Butia capitata POPULATION INSANTA VITORIA DO PALMAR ABSTRACT -The genus Butia belongs to the Arecaceae family and shows five species occurring in the state of Rio Grande de Sul. The specie Butia capitata requires special attention, not just for its use as fresh consumption but also as processed product. However, even having its use recorded since the pre-historic period this specie has been explored only in an extrativist way as most species of native fruits. Moreover, the specie is seriously committed in the short term by the absence of natural regeneration and a very high risk of extinction in the future. Therefore, the objective of this work was to compare the fruits, from chemical and physical parameters, and as well as to observe the productive data of the trees of three different populations of pindo palm tree in Santa Vitoria do Palmar. The data were obtained in experiments carried out in the 2005/2006 and 2006/2007 seasons at three sites located in Santa Vitoria do Palmar. The results allowed verifying that the populations of Butia capitata assessed in Santa Vitoria do Palmar showed variability for length of cycle, fruit epidermis color, juice volume, relationship between total soluble solids and total titratable acidity, biometric characteristics of fruit and yield. The population denominated Celina showed the highest yield and industrial income. Celina and São José showed the best biometric characteristics of fruit. The population Aguiar had the better relationship between total soluble solids and total titratable acidity.

Pindo Palm fruit yield and its relationship with edaphic factors in natural populations in Rio Grande do Sul

“…That is, variations in the weight of bunches had little influence on the yield difference between areas. The weight of bunches becomes relevant; however, when comparing the 5.8kg average obtained in this study with that obtained by SCHWARTZ et al (2010), which exceeded 13kg. Thus, the number of bunches produced per plant may be related to variations in the environment on a smaller spatial scale, as edaphic variations, type of management and crop year.…”

“…In 2009, SCHWARTZ et al (2010 studied three Pindo palm areas in Santa Vitória do Palmar and estimated an overall average of 56kg of fruit per plant. In an assessment by those researchers, as well as in this study, variability in fruit yield between naturally occurring groves of this species resulted mainly from differences in the number of bunches produced per plant.…”

“…The interactions between these factors on the fruiting of Pindo palms are; however, still unknown. In recent years, variations in the fruiting yield of B. odorata have been described in some of the areas where the palm occurs (RIVAS & BARILANI, 2004;AZAMBUJA, 2009;NUNES et al, 2010;SCHWARTZ et al, 2010). The environmental factors involved have not; however, been accounted for.…”

Agricultural Biodiversity in Southern Brazil: Integrating Efforts for Conservation and Use of Neglected and Underutilized Species

“…The plant is also used in landscaping gardens and yards. In the last five to 10 years, a number of research investigations have shed light on this very useful multi-purpose plant and advanced our understanding on its biology, field management and use in southern Brazil [35][36][37][38][39][40][41][42][43][44][45]. Considering the current loss of natural populations of this palm in the Pampa biome, actions for the sustainable conservation and management of the remaining populations are being carried out, with a view at studying the population dynamics, conserving genetic variability, recording innovative use of germplasm by local populations and providing better characterization and in situ conservation, while adopting an integrated plant production and livestock raising approach.…”

Quality and Antioxidant Activiy of Tomato Cultivated Under Different Sources and Doses of Nitrogen

“…This difference can be attributed to the advanced stage of ripeness of the tomatoes used for evaluation, while in the previous study mentioned above, the fruits assessed were at the commercially acceptable ripeness stage. Pectic substances present in the cell walls of plants are structures that contribute to the firmness of fruit (SCHWARTZ et al, 2010) and are found in different forms. The protopectin, a water insoluble form of pectic substances, undergoes transformation to pectin during fruit maturation, which by enzymatic action, is first solubilized and then completely degraded when the fruit is ripe, leading to a change in firmness (OLIVEIRA et al, 2006).…”