Structural changes in soybean seed coat due to harvest time and storage

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Qualidade de mangas cv. palmer após armazenamento sob baixas temperaturas

This study aimed to evaluate the quality of 'Palmer' mangoes previously stored at low temperatures, after their transference to the environmental condition. Fruits harvested at physiological maturity were carefully transported to the Laboratory where they were selected, standardized as the color, size and absence of injuries and treated with fungicide before they were stored at 2°C (75.7% RH), 5°C (73.8% RH) e 12°C (82% RH) for 7, 14 and 21 days. At the end of each period, the fruits were transferred to environmental condition (22.9°C; 62.3% RH), where they were kept for 1, 3, 5 and 7 days, simulating the trading period, and evaluated for the occurrence of injuries and rottenness; peel and pulp color; firmness; contents of soluble solids, titratable acidity and ascorbic acid, as well as, the activities of the enzymes peroxidase, polyphenoloxidase and phenylalanine ammonia-lyase. The results indicated that 'Palmer' mangoes can be stored at 12°C for 21 days without damage to ripening, but with limitations due to the occurrence of decay. The storage at 2°C and 5°C was limited by the occurrence of injuries in the peel, but at the temperature of 2°C these symptoms were more severe and compromised the development of the characteristic color of the peel. However, the ripening of the pulp was not harmed, but this process occurred with less intensity than in mangoes maintained at 12°C.

Biologia populacional e reprodutiva do camarão sete-barbas na Baía de Santos, São Paulo

We investigated the sexual maturity, reproductive period and juvenile recruitment (both associated with salinity and temperature of bottom water) and sex-ratio of Xiphopenaeus kroyeri in Santos Bay, São Paulo. Monthly samples were obtained from June 2008 through May 2009 along four transects. Individuals were measured, sexed and the developmental stage of the reproductive system was macroscopically determined. The mean carapace length of females was larger than that of males. Females attained physiological maturity with 25.5 mm and males with 16.8 mm. The reproductive period was continuous with higher proportions of reproductive females in autumn. Although not significant, in February occurs a peak of reproductive females similar to March. An intermediate peak of these females occurs between August and October and it contributed to the recruitment in summer. The smallest amount of juveniles after the main peak of spawning (February, March and April) can be explained by migration or consequences of open access for fishery that occurs on June. The overall sex-ratio was approximately 1:1. However, when considering the spatial distribution, we observed a greater amount of reproductive females in shallow waters in the bay. The differential distribution between the sexes could be associated with appropriated areas to spawn. The current legal off-season occurs between March and May, and, according to our results of the frequency of reproductive females, we suggest the inclusion of February in the off-season.

Densidades e arranjos populacionais de milho e componentes agronômicos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Dessecação com Glyphosate em pré-colheita e qualidade fisiológica de sementes de soja

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Uso de fitorreguladores e efeitos no florescimento de plantas de pinhão-manso e na maturidade fisiológica das sementes

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estágios de colheita e repouso pós-colheita dos frutos na qualidade de sementes de mamoneira

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Perda de matéria seca em grãos de milho submetidos a sistemas de secagem natural e artificial

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Fenologia, produção e qualidade dos frutos de cultivares de mangueira em condições subtropicais

Pós-graduação em Agronomia (Horticultura) - FCA

Caracterização do desenvolvimento de pêssegos 'Aurora-1' e sua conservação pós-colheita em dois estádios de maturação

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

População de plantas e uso de piraclostrobina na cultura do milho: alterações agronômicas e fisiológicas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Desenvolvimento de plântulas de soja em função da dessecação das plantas e do tratamento das sementes

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação de cultivares de milho em função de populações de plantas e épocas de semeadura

Pós-graduação em Agronomia (Agricultura) - FCA

Características morfofisiológicas de plantas e produtividade do milho

Pós-graduação em Agronomia (Agricultura) - FCA

Maturação, germinação e armazenamento de sementes de piaçaveira (Attalea funifera Mart.)

Pós-graduação em Agronomia (Agricultura) - FCA