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A Caatinga apresenta uma grande diversidade de especies vegetais , dentre elas Luetzelburgia auriculata e uma das especies predominantes no bioma, desempenhando papel fundamental para o ecossistema local. Este trabalho objetivou descrever as caracteristicas biometricas de frutos e sementes de Luetzelburgia auriculata. Para a descricao das caracteristicas da semente foram coletados 200 frutos e 200 sementes de plantas nativas do municipio de Santa Helena, Paraiba. As amostras foram encaminhadas ao Laboratorio de Nutricao Mineral de Plantas do Centro de Saude e Tecnologia Rural de Universidade Federal de Campina Grande para a realizacao das devidas afericoes biometricas. Os frutos foram analisado pelo comprimento, espessura superior, mediana e inferior; largura superior, mediana e inferior. Para as sementes, foram analisados comprimento, espessura e a largura. Verificou-se que o comprimento dos frutos variou de 50,7 a 98,2 cm, a espessura de 6,00 a 17 mm e largura variando de 12,4 a 21,8 mm. Em relacao as sementes, 46% se enquadraram na classe de comprimento com intervalo de 19,9 a 20,8 mm. A especie Luetzelburgia auriculata apresentam variabilidade nas caracteristicas biometricas de frutos e sementes Biometrics of fruit and seeds of Luetzelburgia auriculata (Allemao) Ducke Abstract: The Caatinga presents a great diversity of plant species, among them the woodpecker ( Luetzelburgia auriculata (Allemao) Ducke.) is one of the predominant species in the biome, playing a fundament al role for the local ecosystem. This work aimed to describe the biometric characteristics of fruits and seeds of Pau de Pedra. For the description of the characteristics of the Luetzelburgia auriculata (Allemao) Ducke seed, 200 fruits and 200 seeds of native plants of the municipality of Santa Helena, Paraiba state were collected for biometry and seed mass. Afterwards they were packed in plastic bags and properly identified and taken to Laboratorio de Nutricao Mineral de Plantas do Centro de Saude e Tecnologia Rural Universidade Federal de Campina Grande, where the biometric measurements were continued. The fruit was analyzed for its length, the upper, median and inferior thickness; Upper, median and lower width. The seed was analyzed for length, thickness and width. It was verified that the length of the fruits varied from 50.7 to 98.2 cm, the thickness with 6.00 to 17 mm and width ranging from 12.4 to 21.8 mm. Regarding the seeds, 46% were in the length class with a range of 19.9 to 20.8 mm. From the evaluations we conclude that the species Luetzelburgia auriculata present variability in the biometric characteristics of fruits and seeds, and the morphological description of the fruit and the seed constitutes the importance of the species recognition.

Biométria de frutos e sementes de Luetzelburgia auriculata (Allemão) Ducke