Results: 8

Bioactive compounds and physical-chemical characteristics of two genotypes of peach trees submitted to nitrogen fertilization

Biosci. j. (Online); 38 (), 2022
Nitrogen, which is the primary nutrient peach trees need, may affect their fruit quality. Thus, this study aimed at evaluating the effect of nitrogen fertilization on two genotypes of peach trees, regarding their fruit quality, in three consecutive crops. The experiment was carried out in the experimenta...

Comparison among chemical thinners applied to Maciel and Sensação peach trees

Biosci. j. (Online); 36 (6), 2020
Peach tree thinning, whichaims at reducing plant load so as to ensure productivity and fruit quality, has been manually carried out within a short period of time in the stage of fruit development. Due to the need and shortage of qualified man power, chemical thinning is one of the alternatives that can s...

Nitrogen fertilization associated with cold storage and its impacts on the maintenance of peach quality

Biosci. j. (Online); 36 (3), 2020
Nitrogen, which is considered the most important nutrient for peach trees, may interfere in both quantitative production characteristics and quality of fruits. This study aimed at evaluating the effect of the combination of doses of N fertilization and different periods of cold storage on p...

Peaches phenology and production submitted to foliar nitrogen fertilizer and calcium nitrate

Biosci. j. (Online); 35 (3), 2019
Choosing cultivars that require less chilling temperatures to overcome dormancy is crucial, for example, peaches that grow in subtropical areas, which is not an appropriate climate for them. Thus, alternative techniques are necessary to induce sprouting. Yet there are not many available product...

Development and reprotuction of Spodoptera eridania on natural hosts and artificial diet

Braz. j. biol; 79 (1), 2019
Abstract The development and reproductive potential of Spodoptera eridania (Stoll, 1782) (Lepidoptera, Noctuidae) was compared on natural and artificial diets. Its biology was determined under laboratory conditions, providing an artificial diet, leaves of white clover and the peach cultivar 'Chimarrita'...

Persistence of insecticides used in peach orchards to larvae and adults of the predator Chrysoperla externa (Neuroptera: Chrysopidae)

Arq. Inst. Biol; 86 (), 2019
This work aimed to evaluate the persistence (duration of harmful activity) of five insecticides used for pest control in peach orchards, on larvae and adults of the predator Chrysoperla externa. The insecticides were sprayed on cv. Bordô vine plants using the maximum dosage recommended for peach orchard...

Ação antimicrobiana de óleos essenciais de sucupira branca (Pterodon emarginatus); folhas de pêssego (Prunus persica); bagas de junipero (Juniperus communis); rosa de damasco (Rosa damascena) e petitgrain mandarina (Citrus deliciosa)
Antimicrobial action of white sucupira essential oils (Pterodon emarginatus); peach leaves (Prunus persica); juniper berries (Juniperus communis); pink apricot (Rosa damascena) and petitgrain mandarin (Citrus deliciosa)

Hig. aliment; 32 (280/281), 2018
Os óleos essenciais são complexos naturais formados por cerca de 20 – 60 componentes em distintas concentrações, sendo caracterizados por dois ou três componentes presentes em maiores concentrações (20 – 70%) quando comparados aos demais. A atividade antibacteriana de muitas plantas deve-se ao...

Contagem de filamentos micelianos em doces em pasta de goiaba, marmelo, pêssego e figo, pelo método de Howard

Rev. Inst. Adolfo Lutz; 41 (1), 1981
Foram analisadas 184 amostras de doces em pasta, sendo 83 de doces em pasta de goiaba, 54 de doces em pasta de marmelo, 32 de doces em pasta de pêssego e 15 de doces em pasta de figo. Foi utilizado o método de Howard para contagem de filamentos micelianos. Concluiu-se que 31,32% das amostras de goiabad...