FIGUEIRÊDO NETO, A.; http://lattes.cnpq.br/7419764880191120; FIGUEIRÊDO NETO, Acácio.
Résumé:
The pumpkin crop is generally a good deal for many producers who are located in the semiarid,
mainly in the region of the San Francisco. The pumpkin 'Jacarezinho' is one o f the vegetables of
great importance in northeastem Brazil, especially for its commercial value. It is known that the
physiological seed quality is of vital importance in order to obtain success in a farming and
pumpkin seeds do not escape this reality. Knowledge o f the maturity o f fruits and seeds during
the maturation process is of interest to producers because it helps in quality control. Thus the
objectives of this study: to evaluate the kinetics of fruit maturation and quality of seeds
Pumpkin 'Jacarezinho' under different harvest times, and relate them to physical and
physiological changes that occur simultaneously during the ripening and storage conditions of
the semiarid northeast. The study was conducted in an experimental area of irrigated
horticultura from the Department of Agronomy, State University of Bahia, in the Seed
Laboratory of "Embrapa" semiarid in Petrolina - PE and Materials Testing Laboratory of
Mechanical Engineering, Federal University o f the San Francisco in Juazeiro - BA. In a given
area was grown pumpkin seeds variety 'Jacarezinho' for its fruits being harvested at certain
times during the period December 2010 to March 2011. After harvesting, the fruits passed
through the analysis of compression tests with subsequent extraction of the seeds, to determine
the moisture content and the tests of germination and vigor. Seeds reached physiological
maturity at the time of 50 to 60 days after anthesis by setting the time of fruit harvest for seed
production. For the analysis of research on mechanical behavior of the fruit the result shows that
with increasing aging time is increased stiffness of the fruit with a consequent increase o f the
maximum load to achieve greater deformation. And the longer advisable to harvest and
transport was between 30 to 40 days after anthesis to fruit commercialization. And finally, with
the seed storage was found that the highest germination values were obtained in plastic
packaging for the twelve months and paper for the three months storage of cucurbit.