Tânia Regina Pelizza

General aspects of physalis cultivation

The Physalis peruviana L. is an exotic fruit that belongs to the Solanaceae family with recent production in Brazil. This is presented as an alternative production with nutritional potential and economic value. The cape gooseberry plant has a high added value that can be used from its root to the fruit itself. The roots and leaves are rich in medicinal properties that are used in pharmacology. The fruit is sweet and have good content of vitamins A, C, iron, phosphorus and fiber, often used in making jellies, jams, juices and ice creams. To improve the plant canopy, but also contribute to the quality and appearance of the fruit produced some cultural practices such as staking, training systems, pruning and thinning are used. The aim of this review is to provide technical and scientific data about the culture of physalis.

Microestaquia em mirtileiro com diferentes porções do ramo e substratos

This work was carried out aiming to evaluate the rooting capacity of microcuttings derived from different positions (median and apical) of the blueberry branches under protected environment. The blueberry (Vaccinium ashei Reade) branches cv. Climax used for this experiment were derived from the micropropagated plants. Two types of microcuttings (apical and median) and three substrates (Plantmax® + carbonized rice rusks (1:1); Humus Fertil® and Vermicompound of cattle) were used. The indolbutiric acid (IBA) was applied at 2000 mg L-1 to stimulate rooting. The microcuttings were put into expanded polystyrene trays. Microcuttings from the median position showed higher percentage of surviving, higher number of leaves and shoots; however, they had higher callus formation. The number of roots is dependent on the type of microcutting and substrate used. The use of median microcuttings together with the use of the substrate Plantmax® + carbonized rice rusks are favorable to plant production of the blueberry cv. Climax, with increases in rooting percentage and surviving cuttings, length of roots and number of leaves and shoots.

Aspectos gerais da cultura da physalis

The Physalis peruviana L. is an exotic fruit that belongs to the Solanaceae family with recent production in Brazil. This is presented as an alternative production with nutritional potential and economic value. The cape gooseberry plant has a high added value that can be used from its root to the fruit itself. The roots and leaves are rich in medicinal properties that are used in pharmacology. The fruit is sweet and have good content of vitamins A, C, iron, phosphorus and fiber, often used in making jellies, jams, juices and ice creams. To improve the plant canopy, but also contribute to the quality and appearance of the fruit produced some cultural practices such as staking, training systems, pruning and thinning are used. The aim of this review is to provide technical and scientific data about the culture of physalis.

Enraizamento de plântulas de mirtileiro em condição ex vitro com diferentes substratos

The objective of this study was to measure the capacity of ex vitro rooting of blueberry seedlings cultivars Bluebelle, Woodard and Georgiagem under different substrates. The experiment was carried out from February to April, 2009 in greenhouse at ± 25oC, set at Universidade Federal de Pelotas (UFPel/FAEM) in Pelotas (RS). The seedlings (seven buds and seven leaves + stem apex) were immersed in IBA for 10 minutes, and after were put in closed plastic trails filled up with the following substrates: a) Plantmax®, b) Plantmax® + old pine sawdust (totally degraded), c) old pine sawdust, d) Plantmax® + medium grade expanded vermiculite and e) medium grade expanded vermiculite. The experimental design was completely randomized in a 3x5 factorial arrangement, with three cultivars and five substrates. There were four replications per treatment and eight seedlings per replication. After 75 days the percentage of rooting seedlings, callus formation, surviving seedlings, length and number of roots, length of the largest root, seedlings height, number of shoots and total fresh biomass were assessed. The better substrates to ex vitro rooting of blueberry seedlings are medium grade expanded vermiculite, old pine sawdust and Plantmax® + medium grade expanded vermiculite. Higher potential of ex vitro rooting is achieved with the cultivars Bluebelle and Woodard.

Produção de mudas de meloeiro amarelo, sob cultivo protegido, em diferentes substratos

Weak and malformed seedlings compromise the development of the crop. The objective of this study was to evaluate the production of yellow melon seedlings in different substrates under protected cultivation. The experiment was conducted in a greenhouse during November and December, at the Federal University of Pelotas (RS). The following substrates were tested: T1: bovine manure vermicompost; T2: Plantmax® substrate; T3: Humus Fertil® commercial substrate; T4: bovine vermicompost 75%+ carbonized rice bark 25%; and T5: soil 75%+bovine vermicompost 25%. The evaluated variables were: the rate of speed and percentage of emergence from days 6th to 9th; height; main root length; and dry mass of roots and shoots of the watermelon seedlings at 27 days. The substrates that provided the highest speed rate of emergence of yellow melon were Humus Fertil®, bovine manure vermicompost and bovine vermicompost 75%+ carbonized rice bark 25%. Increased seedling height was obtained with the substrate Humus Fertil®. The main root length was higher with bovine manure vermicompost, Humus Fertil®, soil 75%+bovine vermicompost 25% (SO75 + VB25) than with 75% ground beef + 25% vermicompost. The root dry weight was higher with Humus Fertil® than soil 75%+bovine vermicompost 25%. It is possible to use substrates alone or in combination for the production of yellow melon seedlings in greenhouses. However, the use of soil 75% in combination with bovine vermicompost 25% should be avoided.