Prohexadiona de cálcio sobre o crescimento e a qualidade de mudas de berinjela

The objective of this work was to evaluate the effects of prohexadione calcium concentrations on the growth and quality of eggplant (Solanum melongena) seedlings. The effects of prohexadione calcium concentrations of 0, 50, 100, or 150 mg L-1 on seedling growth parameters were evaluated in a greenhouse experiment. After the greenhouse experiment, the seedlings were transplanted to the field. During the field experiment, the number of days to flowering, plant height, number of fruits per plant, average fruit weight and yield were evaluated. Both experiments were carried out in a completely randomized design with four replicates. All prohexadione calcium concentrations significantly reduced shoot height and internode length, when compared to the control. The concentrations of 50, 100, and 150 mg L-1 prohexadione calcium reduced shoot height by 27, 32, and 38%, respectively. Prohexadione calcium treatments (except the one with 50 mg L-1) enhanced relative chlorophyll content of leaves in comparison to the control. There were no delays in flowering and no significant differences in number of fruits per plant among treatments with prohexadione calcium. The concentrations of 100 and 150 mg L-1 prohexadione calcium significantly reduced yield per plant and total fruit yield, whereas the concentration of 50 mg L-1 did not cause any change in yield compared to the control. The lowest prohexadione calcium concentration can be used to control excessive elongation of eggplant seedlings without yield loss.O objetivo deste trabalho foi avaliar os efeitos da aplicação de prohexadiona de cálcio no crescimento e na qualidade de mudas de berinjela (Solanum melongena). Os efeitos das concentrações de 0, 50, 100 ou 150 mg L-1 de prohexadiona de cálcio nos parâmetros de crescimento de mudas foram avaliados em experimento em casa de vegetação. Após a avaliação em casa de vegetação, as plântulas foram transplantadas para o campo. No experimento em campo, foram avaliados número de dias para o florescimento, altura de plantas, número de frutos por planta, peso médio e produtividade dos frutos. Ambos os experimentos foram realizados em delineamento inteiramente casualizado, com quatro repetições. Todas as concentrações de prohexadiona de cálcio reduziram significativamente a altura da parte aérea e o comprimento dos entrenós, em comparação ao controle. As concentrações de 50, 100 e 150 mg L-1 de prohexadiona de cálcio reduziram a altura da parte aérea em 27, 32 e 38%, respectivamente. Os tratamentos com prohexadiona de cálcio (exceto o de 50 mg L-1) aumentaram o teor de clorofila na folha, em relação ao controle. Não foram observados atrasos na floração nem diferenças significativas no número de frutos por planta entre os tratamentos com prohexadiona de cálcio. As concentrações de 100 e 150 mg L-1 de prohexadiona de cálcio reduziram a produção por planta e o rendimento total de frutos, enquanto a aplicação de 50 mg L-1 não causou qualquer alteração no rendimento quando comparado ao controle. A concentração mais baixa de prohexadiona de cálcio pode ser usada para controlar o alongamento excessivo de mudas de berinjela sem perda de rendimento

Sensory and descriptor attributes of some walnut cultivars and types

The study presents an extensive assessment of sensory and descriptor attributes of 27 walnut (Juglans Regia L.) cultivars and types. Descriptive analyses were used for a total of 15 cultivars and 12 types, harvested from a collection walnut orchard located in city of Kahramanmaraş, Turkey, by a panel of 14 consisting of horticultural students and staff. The assessment enclosed three main descriptors, and sensory attributes which were nut structure, kernel structure, and flavor and texture. The nut shape of the cultivars/types was mainly rated broad to ovate. ‘Sütyemez-2’ and ’77-H-1’ types were recorded to have the whitest shell color whereas ‘Chandler’ cultivar was recorded to have the whitest kernel color. Most of the cultivars/types had a moderate kernel fill and shriveling score. The highest score of aroma, flavor and sweetness intensity was noted in ‘Kaman-3’ while bitterness, puckeriness and sweetness assessments greatly changing among cultivars/types. Crispness rating of the cultivars/types was almost the same, with the exception ‘KSU-5’being crispier than others

Suitability of some mid-season table grape cultivars and types for minimally processed produce

Aims: The objectives of this study were to evaluate whether some midseason table grape cultivars and types can be used as minimally processed produce and to investigate the negative effects of minimal processing on the quality of the table grapes. Methods and results: Changes in quality losses as defects, weight loss, soluble solids, titratable acidity and pH by minimally processed 13 cultivars and 4 types were recorded during a 10-day storage period at 4 °C. Browning on the stem end was the major defect followed by collapse on the stem end, decay both on the stem end and on the berry surface, and splitting on the berry surface. Big Perlon, Hatun Parmagi and Ribol among the cultivars/types were found be less prone to defects after minimal processing and storing at 4 °C. Conclusion: The defects or problems which minimally processed table grapes most likely to face are collapse, browning and decay on the stem end, and splitting and decay on the berry surface. The quality losses in Big Perlon, Hatun Parmagi and Ribol cultivars with a very large berry size were lower than other 14 cultivars/types after 10 days, suggesting that berry size is very important attribute for choosing table grape cultivars as minimally processed produce. Significance and impact of study: The study involving 13 cultivars and 4 types with different colored skin, berry sizes and types presents reliable information of suitability of the grapes for fresh-cut produce. Furthermore, the quality assessment used for this study provides a very detailed clarification what kind of problems minimally processed table grapes might face

Identification of Cytosolic and Noncytosolic Carbonic Anhydrases in Brain

WOS: 000456482200014Carbonic anhydrase is an enzyme found in many mammalian tissues, but it has not previously been determined whether it is present in the bovine brain. In this work, carbonic anhydrase was purified and characterized according to localizations: outer peripheral, cytosolic, inner peripheral and integral in four steps. Affinity chromatography was used for purification of the enzyme from the four different cell regions. The affinity column was prepared with Sepharose-4B-L-tyrosine-sulfanilamide. Purified enzymes obtained at each step activity were determined by hydratase activity and esterase activity methods. Optimum pH and optimum temperature values were defined for the purified enzymes. The behavior of carbonic anhydrase with specific inhibitors, sulfanilamide, KSCN and NaN3, was investigated. Molecular weights of enzymes were determined by gel filtration, and its purity controlled by SDS-PAGE electrophoresis. In addition, the enzyme's K-M and V-max values were determined with the Lineweaver-Burk method. The results obtained are discussed in comparison with other mammalian carbonic anhydrases

Prohexadione calcium on the growth and quality of eggplant seedlings

Abstract:The objective of this work was to evaluate the effects of prohexadione calcium concentrations on the growth and quality of eggplant (Solanum melongena) seedlings. The effects of prohexadione calcium concentrations of 0, 50, 100, or 150 mg L-1 on seedling growth parameters were evaluated in a greenhouse experiment. After the greenhouse experiment, the seedlings were transplanted to the field. During the field experiment, the number of days to flowering, plant height, number of fruits per plant, average fruit weight and yield were evaluated. Both experiments were carried out in a completely randomized design with four replicates. All prohexadione calcium concentrations significantly reduced shoot height and internode length, when compared to the control. The concentrations of 50, 100, and 150 mg L-1 prohexadione calcium reduced shoot height by 27, 32, and 38%, respectively. Prohexadione calcium treatments (except the one with 50 mg L-1) enhanced relative chlorophyll content of leaves in comparison to the control. There were no delays in flowering and no significant differences in number of fruits per plant among treatments with prohexadione calcium. The concentrations of 100 and 150 mg L-1 prohexadione calcium significantly reduced yield per plant and total fruit yield, whereas the concentration of 50 mg L-1 did not cause any change in yield compared to the control. The lowest prohexadione calcium concentration can be used to control excessive elongation of eggplant seedlings without yield loss

Radical resection of the pancreas should not always be necessary in the surgical management of pancreatic solid pseudopapillary tumor in children

WOS: 000401073200013PubMed ID: 28336499Background/Aims: Pancreatic solid pseudopapillary tumor (SPT) is a rare neoplasm in children. In this study, we aimed to present our surgical strategy based on minimal resection by enucleation or limited resection in localized pancreatic SPT. Materials and Methods: We retrospectively analyzed the medical records of children who underwent surgical resection between October 2011 and September 2016. Results: Five female patients with a median age of 15 years (range, 14-17 years) were operated. Tumors were located in the pancreatic head (n=4) or tail (n=1). The median greatest tumor diameter was 9 cm (range, 5-13 cm). All the patients were investigated with MRI before the resection to demonstrate the relationship between the tumor and the main pancreatic duct. Patients underwent enucleation (n=4) for head localization or local distal resection without splenectomy (n=1) at the pancreatic tail. At postoperative follow-up, major pancreatic leakage was observed in two patients and endoscopically treated. Surgical margins were negative in all patients. The median follow-up period was 44 months (range, 2-59 months) and no local recurrence or distant metastasis was observed in the postoperative period. Conclusion: An optimal surgical strategy is still controversial in pancreatic SPT in children. Radical resections such as pancreaticoduodenoctomy or distal pancreatectomy with splenectomy result in loss of pancreatic tissue for endocrine and exocrine functions. Minimal resections such as enucleation or limited pancreatic resection with negative surgical margins should be performed in selected patients with no invasion to the main pancreatic duct or adjacent organs