Pub Date : 2020-01-05DOI: 10.20944/preprints202001.0047.v1
A. Skwiercz, A. Zapałowska, Ł. Flis, J. Koc-Jurczyk, Łukasz Jurczyk, W. Litwińczuk, C. Puchalski
Abstract Short-rotation woody plants of the genus Paulownia are attracting more and more attention as trees that produce biomass and reduce the concentration of carbon dioxide in the atmosphere. However, plants growing in monoculture affect the properties and condition of the soil. One of the effects of changes in the soil environment is the growing population of plant parasitic nematodes (PPN). The article presents information about the PPN inhabiting the root zone of the Paulownia tomentosa plantation in Poland. In this study, the frequency and density of nematode populations in samples from seven plantations in Poland were determined. The extracted nematodes were identified at the species level on the basis of the male and female morphological characteristics according to several available identification resources. A total of 20 nematode species were identified, of which 9 were classified as accessory and 11 as occasional. Among them, Trichodorus viruliferus and Longidorus attenuatus belonging to the group of viral messengers were identified.
{"title":"Plant Parasitic Nematodes on Paulownia tomentosa in Poland","authors":"A. Skwiercz, A. Zapałowska, Ł. Flis, J. Koc-Jurczyk, Łukasz Jurczyk, W. Litwińczuk, C. Puchalski","doi":"10.20944/preprints202001.0047.v1","DOIUrl":"https://doi.org/10.20944/preprints202001.0047.v1","url":null,"abstract":"Abstract Short-rotation woody plants of the genus Paulownia are attracting more and more attention as trees that produce biomass and reduce the concentration of carbon dioxide in the atmosphere. However, plants growing in monoculture affect the properties and condition of the soil. One of the effects of changes in the soil environment is the growing population of plant parasitic nematodes (PPN). The article presents information about the PPN inhabiting the root zone of the Paulownia tomentosa plantation in Poland. In this study, the frequency and density of nematode populations in samples from seven plantations in Poland were determined. The extracted nematodes were identified at the species level on the basis of the male and female morphological characteristics according to several available identification resources. A total of 20 nematode species were identified, of which 9 were classified as accessory and 11 as occasional. Among them, Trichodorus viruliferus and Longidorus attenuatus belonging to the group of viral messengers were identified.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45323313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Jujube fruit quickly undergoes spoilage and normally has a short shelf life. Therefore, the effect of immersion treatment in different calcium salts on qualitative and biochemical characteristics of fresh jujube fruit was evaluated. Treatments included control (distilled water) and solutions of calcium chloride, calcium nitrate, and calcium sulfate at a concentration of 0.5 and 1%. Fruits were immersed in water or calcium salt solution for 5 min, air-dried and then cold stored at 4 °C for 50 days. The results showed that such treatment did not affect significantly the pulp color and the anthocyanin concentration in the fruit. However, the soluble solids in the treated fruits significantly decreased compared with the control. Interestingly, all levels of calcium salts, except 0.5% calcium nitrate, preserved the total antioxidant capacity in comparison with the control. Concentrations of 1% calcium nitrate, chloride, and sulfate significantly increased crispness compared with the control. The taste of fruit treated with calcium sulfate significantly deteriorated compared with the control and other treatments. In general, 1% calcium nitrate and 1% calcium chloride applied before storage preserved or strengthened the jujube fruit qualities after storage compared with control. It can be concluded that such treatment is recommended for practical application.
{"title":"Postharvest Calcium Salt Treatment of Fresh Jujube Fruit and its Effects on Biochemical Characteristics and Quality after Cold Storage","authors":"F. Moradinezhad, Mehdi Ghesmati, Mehdi Khayyat","doi":"10.2478/johr-2019-0009","DOIUrl":"https://doi.org/10.2478/johr-2019-0009","url":null,"abstract":"Abstract Jujube fruit quickly undergoes spoilage and normally has a short shelf life. Therefore, the effect of immersion treatment in different calcium salts on qualitative and biochemical characteristics of fresh jujube fruit was evaluated. Treatments included control (distilled water) and solutions of calcium chloride, calcium nitrate, and calcium sulfate at a concentration of 0.5 and 1%. Fruits were immersed in water or calcium salt solution for 5 min, air-dried and then cold stored at 4 °C for 50 days. The results showed that such treatment did not affect significantly the pulp color and the anthocyanin concentration in the fruit. However, the soluble solids in the treated fruits significantly decreased compared with the control. Interestingly, all levels of calcium salts, except 0.5% calcium nitrate, preserved the total antioxidant capacity in comparison with the control. Concentrations of 1% calcium nitrate, chloride, and sulfate significantly increased crispness compared with the control. The taste of fruit treated with calcium sulfate significantly deteriorated compared with the control and other treatments. In general, 1% calcium nitrate and 1% calcium chloride applied before storage preserved or strengthened the jujube fruit qualities after storage compared with control. It can be concluded that such treatment is recommended for practical application.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2478/johr-2019-0009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48491439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Sikorska-Zimny, K. Wójcicka, Anita Rochmińska, K. Rutkowski, E. Szewczyk, P. Lisiecki
Abstract Parsley leaves (Petroselinum crispum) have long been known for their organoleptic properties. They are widely used in cuisine all over the world in fresh and dried form and also as pharmaceutical raw material. The presented work assessed if the storage of parsley leaves (as whole leaves or leave pieces) and packaging with PE or Xtend® foils influence the content of selected chemical compounds and the microbiological quality of the product. For this purpose, the leaves were dried, packaged and analyzed after 3 weeks’ storage under room temperature. Neither the degree of fragmentation nor the type of packaging foil affected the content of vit. C and total sugars. Higher content of reducing sugars was obtained in the samples packed in PE foil. Number of detected bacteria did not exceed the safety border. Less bacterial colonies were detected in the material packed as fragmented in the PE foil. No fungal colonies were detected in the leaves packed in the Xtend® foil.
{"title":"The Effect of Fragmentation and Packaging of Dried Parsley Leaves on Selected Chemical and Microbiological Parameters","authors":"K. Sikorska-Zimny, K. Wójcicka, Anita Rochmińska, K. Rutkowski, E. Szewczyk, P. Lisiecki","doi":"10.2478/johr-2019-0020","DOIUrl":"https://doi.org/10.2478/johr-2019-0020","url":null,"abstract":"Abstract Parsley leaves (Petroselinum crispum) have long been known for their organoleptic properties. They are widely used in cuisine all over the world in fresh and dried form and also as pharmaceutical raw material. The presented work assessed if the storage of parsley leaves (as whole leaves or leave pieces) and packaging with PE or Xtend® foils influence the content of selected chemical compounds and the microbiological quality of the product. For this purpose, the leaves were dried, packaged and analyzed after 3 weeks’ storage under room temperature. Neither the degree of fragmentation nor the type of packaging foil affected the content of vit. C and total sugars. Higher content of reducing sugars was obtained in the samples packed in PE foil. Number of detected bacteria did not exceed the safety border. Less bacterial colonies were detected in the material packed as fragmented in the PE foil. No fungal colonies were detected in the leaves packed in the Xtend® foil.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41315441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract In this study, ‘Rabbab’ pomegranates (Punica granatum L.) were subjected before storage to single-layered wax coating (SLW), double-layered wax coating (DLW), individual-seal film packaging (ISP), tray wrap film packaging (TWP), and combined treatments of SLW + ISP or SLW + TWP. Treated fruits were then stored at ambient temperature (15–20 °C; 45–50% relative humidity – RH) or in cold conditions (5 °C ± 0.5; 85% RH) for 18 weeks. TWP, ISP, DLW, and SLW extended the shelf life of pomegranates for 18, 18, 12, and 11 weeks at cold (5 °C) condition, and also for 6, 5, 3, and 3 weeks at ambient condition, respectively, whereas the shelf life of control fruits were 10 and 2 weeks at cold and ambient conditions, respectively. After 18 weeks of storage, the weight loss in ISP and TWP fruits was 0.6 and 0.4% at cold condition and 12.4 and 5.4% at ambient condition, respectively. In general, film packaging maintained vitamin C, total titratable acidity, and sensory analysis scores for color, freshness, juiciness, and taste of pomegranates more effectively than wax coating and control. However, the combination of SLW and ISP or TWP did not improve the efficiency of pomegranates packaged as either ISP or TWP.
{"title":"The Effect of Various Film Packaging, Wax Coating and Storage Conditions on the Shelf Life and Quality of Pomegranate Fruits","authors":"M. Safizadeh","doi":"10.2478/johr-2019-0008","DOIUrl":"https://doi.org/10.2478/johr-2019-0008","url":null,"abstract":"Abstract In this study, ‘Rabbab’ pomegranates (Punica granatum L.) were subjected before storage to single-layered wax coating (SLW), double-layered wax coating (DLW), individual-seal film packaging (ISP), tray wrap film packaging (TWP), and combined treatments of SLW + ISP or SLW + TWP. Treated fruits were then stored at ambient temperature (15–20 °C; 45–50% relative humidity – RH) or in cold conditions (5 °C ± 0.5; 85% RH) for 18 weeks. TWP, ISP, DLW, and SLW extended the shelf life of pomegranates for 18, 18, 12, and 11 weeks at cold (5 °C) condition, and also for 6, 5, 3, and 3 weeks at ambient condition, respectively, whereas the shelf life of control fruits were 10 and 2 weeks at cold and ambient conditions, respectively. After 18 weeks of storage, the weight loss in ISP and TWP fruits was 0.6 and 0.4% at cold condition and 12.4 and 5.4% at ambient condition, respectively. In general, film packaging maintained vitamin C, total titratable acidity, and sensory analysis scores for color, freshness, juiciness, and taste of pomegranates more effectively than wax coating and control. However, the combination of SLW and ISP or TWP did not improve the efficiency of pomegranates packaged as either ISP or TWP.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41493048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract For many years Poland and Serbia have played the dominating roles in European raspberry production. However, the growing production in Ukraine might threaten the relative stability of the raspberry market for both countries. It is projected that in the coming years Ukraine will strengthen its competitive position in relation to the current industrial raspberry production leaders. This justifies the need to conduct comparative analyses of competitive power, and its contributory factors, including production costs in individual countries. The aim of this study was to compare economic viability and cost-effectiveness in raspberry production, using the examples of selected horticultural holdings in Poland, Serbia, and Ukraine. The production volumes of raspberries in Poland, Serbia and Ukraine were analysed. The levels of costs and the financial results generated in raspberry cultivation for processing purposes were also determined, using the example of horticultural holdings in this countries. The results indicated that the direct costs in Ukraine, were just over half lower those in Poland and Serbia. The raspberry crop yields in the three investigated countries were similar, and the sales prices in the analysed years made it possible to obtain a surplus of receipts over direct costs.
{"title":"Economic Aspects in the Raspberry Production on the Example of Farms from Poland, Serbia and Ukraine","authors":"W. Wróblewska, J. Pawlak, D. Paszko","doi":"10.2478/johr-2019-0019","DOIUrl":"https://doi.org/10.2478/johr-2019-0019","url":null,"abstract":"Abstract For many years Poland and Serbia have played the dominating roles in European raspberry production. However, the growing production in Ukraine might threaten the relative stability of the raspberry market for both countries. It is projected that in the coming years Ukraine will strengthen its competitive position in relation to the current industrial raspberry production leaders. This justifies the need to conduct comparative analyses of competitive power, and its contributory factors, including production costs in individual countries. The aim of this study was to compare economic viability and cost-effectiveness in raspberry production, using the examples of selected horticultural holdings in Poland, Serbia, and Ukraine. The production volumes of raspberries in Poland, Serbia and Ukraine were analysed. The levels of costs and the financial results generated in raspberry cultivation for processing purposes were also determined, using the example of horticultural holdings in this countries. The results indicated that the direct costs in Ukraine, were just over half lower those in Poland and Serbia. The raspberry crop yields in the three investigated countries were similar, and the sales prices in the analysed years made it possible to obtain a surplus of receipts over direct costs.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48158618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Developing a method for the control of cut flower opening and improvement of cut flower quality is important to meet consumer demand. In this study, we investigated the effects of methyl jasmonate (MeJA) on flower opening of three rose cultivars: ‘Red Star,’ ‘Princes Meg,’ and ‘Madrid’. Shoot bases of cut roses were immersed in water solutions containing 100- or 1000-μM MeJA in addition to 2% weight/volume (w/v) sucrose and 0.02% w/v 8-hydroxyquinoline monohydrate. Subsequently, the vase life, flower opening, petal wilting, petal weight, water uptake, and water evaporation were measured. Flower opening of all three cultivars was clearly delayed following the treatment with MeJA, resulting in prolonged vase life compared with control. In addition, flower wilting was suppressed in all cultivars. Moreover, 7 days following treatment, the petal fresh weight was maintained high in the ‘Red Star’ and ‘Princes Meg’ cultivars. However, there was no significant difference in the ‘Madrid’ cultivar versus control. In all three cultivars, there was a minimal difference in the total amount of water uptake and evaporation. Thus, it is suggested that the total amount of water uptake and evaporation have limited relevance to the changes in the relative fresh weight of cut roses and petal fresh weight observed following treatments. Despite the difference in the sensitivity of the rose cultivars to treatment with MeJA, we conclude that MeJA has high potential as a quality retention agent for cut roses.
摘要:开发一种控制鲜切花开放和提高鲜切花品质的方法，是满足消费者需求的重要手段。本研究研究了茉莉酸甲酯(MeJA)对红星(Red Star)、王子梅格(Princes Meg)和马德里(Madrid)三个玫瑰品种开花的影响。将切花玫瑰茎底分别浸入含有100 μ m或1000 μ m MeJA、2%重量体积比(w/v)蔗糖和0.02% w/v 8-羟基喹啉的水溶液中。随后，测量了花瓶寿命、开花、花瓣枯萎、花瓣重、吸水量和水分蒸发。MeJA处理后，3个品种的开花时间明显延迟，花瓶寿命较对照延长。此外，所有品种的花萎凋均得到抑制。此外，处理7天后，‘红星’和‘王子梅格’品种的花瓣鲜重保持在较高水平。然而，“马德里”品种与对照没有显著差异。在所有三个品种中，吸水总量和蒸发量的差异很小。因此，水分吸收总量和蒸发量与切花玫瑰相对鲜重和花瓣鲜重变化的相关性有限。尽管不同品种的玫瑰对MeJA处理的敏感性不同，但我们认为MeJA作为切花玫瑰的优质保留剂具有很高的潜力。
{"title":"Methyl Jasmonate Treatment Delays Flower Opening and Petal Wilting of Three Cut Rose Cultivars","authors":"T. Horibe, Maho Makita","doi":"10.2478/johr-2019-0016","DOIUrl":"https://doi.org/10.2478/johr-2019-0016","url":null,"abstract":"Abstract Developing a method for the control of cut flower opening and improvement of cut flower quality is important to meet consumer demand. In this study, we investigated the effects of methyl jasmonate (MeJA) on flower opening of three rose cultivars: ‘Red Star,’ ‘Princes Meg,’ and ‘Madrid’. Shoot bases of cut roses were immersed in water solutions containing 100- or 1000-μM MeJA in addition to 2% weight/volume (w/v) sucrose and 0.02% w/v 8-hydroxyquinoline monohydrate. Subsequently, the vase life, flower opening, petal wilting, petal weight, water uptake, and water evaporation were measured. Flower opening of all three cultivars was clearly delayed following the treatment with MeJA, resulting in prolonged vase life compared with control. In addition, flower wilting was suppressed in all cultivars. Moreover, 7 days following treatment, the petal fresh weight was maintained high in the ‘Red Star’ and ‘Princes Meg’ cultivars. However, there was no significant difference in the ‘Madrid’ cultivar versus control. In all three cultivars, there was a minimal difference in the total amount of water uptake and evaporation. Thus, it is suggested that the total amount of water uptake and evaporation have limited relevance to the changes in the relative fresh weight of cut roses and petal fresh weight observed following treatments. Despite the difference in the sensitivity of the rose cultivars to treatment with MeJA, we conclude that MeJA has high potential as a quality retention agent for cut roses.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44952136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Szwejda-Grzybowska, A. Wrzodak, M. Grzegorzewska, M. Gajewski, R. Kosson
Abstract The aim of this study was to determine the influence of dipping in tap and hot water (53 or 55 °C) before storage and conditions during short-term storage: 4 days at 18–20 °C temperature or 7 days at 0 or 5 °C, on contents of total polyphenols, ascorbic acid, antiradical activity, and sensory quality of leaves of wild rocket (Diplotaxis tenuifolia L.). The highest sensory values, ascorbic acid contents, and antiradical activity were found in fresh leaves. Treatments with tap and hot water before storage reduced ascorbic acid contents and antiradical activity, as well as most sensory parameters regardless of storage conditions. The highest overall quality of wild rocket after storage for 4 days at 18–20 °C was found for leaves not dipped or dipped in tap water. Dipping of the wild rocket in the water at 53 or 55 °C for 3 or 5 s did not improve the overall quality of stored leaves compared with leaves not dipped or dipped in tap water.
{"title":"Influence of Tap and Hot Water Treatment Before Short-Term Storage on Biologically Active Compounds and Sensory Quality of Wild Rocket Leaves (Diplotaxis tenuifolia L.)","authors":"J. Szwejda-Grzybowska, A. Wrzodak, M. Grzegorzewska, M. Gajewski, R. Kosson","doi":"10.2478/johr-2019-0011","DOIUrl":"https://doi.org/10.2478/johr-2019-0011","url":null,"abstract":"Abstract The aim of this study was to determine the influence of dipping in tap and hot water (53 or 55 °C) before storage and conditions during short-term storage: 4 days at 18–20 °C temperature or 7 days at 0 or 5 °C, on contents of total polyphenols, ascorbic acid, antiradical activity, and sensory quality of leaves of wild rocket (Diplotaxis tenuifolia L.). The highest sensory values, ascorbic acid contents, and antiradical activity were found in fresh leaves. Treatments with tap and hot water before storage reduced ascorbic acid contents and antiradical activity, as well as most sensory parameters regardless of storage conditions. The highest overall quality of wild rocket after storage for 4 days at 18–20 °C was found for leaves not dipped or dipped in tap water. Dipping of the wild rocket in the water at 53 or 55 °C for 3 or 5 s did not improve the overall quality of stored leaves compared with leaves not dipped or dipped in tap water.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46705324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Corrugated cardboard covered with ethylene absorbers is an innovation that can be used to extend the shelf life of mango fruit to slow the loss of fruit quality. Mango fruits ‘Gedong’ were placed in boxes having as the inner parts corrugated cardboard covered with ethylene absorbers. Three storage treatments – corrugated cardboard without ethylene absorber, with activated carbon or activated carbon + potassium permanganate – were used to find the best method to prevent quality deterioration of mango. The color change, mass loss, texture value, and total soluble solids content were evaluated after 10 days of storage. The initial results showed that the highest accumulation of ethylene production by fruit samples was 0.628 ppm·kg−1 on the fourth day after harvest, while the total ethylene production during 8 days of storage was 2.231 ppm·kg−1. The use of ethylene absorbers had significant effects on the quality parameters except for the color changes. Storage for 10 days in boxes lined with corrugated cardboard ethylene absorber in form of activated carbon + potassium permanganate resulted in the lowest mass loss (4.40 ± 2.6%), softness (0.2 ± 0.1 mm·g−1·s−1) and total soluble solids (14.7 ± 1.2 °Brix).
{"title":"The Effects of the Use of Corrugated Cardboards Covered with Ethylene Absorbers on Mango Fruit Quality after Short-Term Storage (Mangifera indica L.)","authors":"E. Warsiki, F. Aprilliani, A. Iskandar","doi":"10.2478/johr-2019-0007","DOIUrl":"https://doi.org/10.2478/johr-2019-0007","url":null,"abstract":"Abstract Corrugated cardboard covered with ethylene absorbers is an innovation that can be used to extend the shelf life of mango fruit to slow the loss of fruit quality. Mango fruits ‘Gedong’ were placed in boxes having as the inner parts corrugated cardboard covered with ethylene absorbers. Three storage treatments – corrugated cardboard without ethylene absorber, with activated carbon or activated carbon + potassium permanganate – were used to find the best method to prevent quality deterioration of mango. The color change, mass loss, texture value, and total soluble solids content were evaluated after 10 days of storage. The initial results showed that the highest accumulation of ethylene production by fruit samples was 0.628 ppm·kg−1 on the fourth day after harvest, while the total ethylene production during 8 days of storage was 2.231 ppm·kg−1. The use of ethylene absorbers had significant effects on the quality parameters except for the color changes. Storage for 10 days in boxes lined with corrugated cardboard ethylene absorber in form of activated carbon + potassium permanganate resulted in the lowest mass loss (4.40 ± 2.6%), softness (0.2 ± 0.1 mm·g−1·s−1) and total soluble solids (14.7 ± 1.2 °Brix).","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43747529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Good knowledge of genetic merits governing the inheritance of economic traits is of paramount importance to plant breeders for crop improvement. Objectives of the study were to investigate the genetic nature of ear traits in sweet corn (Zea mays convar. saccharata var. rugosa) based on the general and specific combining ability (GCA and SCA) analysis, and to determine the breeding potential of eight promising inbred lines for the development of new hybrid cultivars well suited for organic production. Thirty-six genotypes (hybrid families) derived from a half diallel cross design were grown under organic crop management at three agro-ecological zones of the tropics. Although the genotypes varied significantly for all the observed ear traits, some of them showed clear inconsistencies in performing husked ear size (length, diameter, and weight), kernel row number, and kernel number per row across environments. The combining ability analysis showed that additive gene action was more preponderance than non-additive gene actions in governing the inheritance of the studied ear traits. The inbred lines: Caps 5, Caps 17A, Caps 17B, and Caps 22 showed their potential as good partners for the improvement of ear performances as to the development of superior sweet corn cultivars for organic production.
{"title":"Combining Ability Analysis of Ear Characteristics of Sweet Corn Hybrids Suitable for Organic Crop Production","authors":"M. Chozin, S. Sudjatmiko","doi":"10.2478/johr-2019-0013","DOIUrl":"https://doi.org/10.2478/johr-2019-0013","url":null,"abstract":"Abstract Good knowledge of genetic merits governing the inheritance of economic traits is of paramount importance to plant breeders for crop improvement. Objectives of the study were to investigate the genetic nature of ear traits in sweet corn (Zea mays convar. saccharata var. rugosa) based on the general and specific combining ability (GCA and SCA) analysis, and to determine the breeding potential of eight promising inbred lines for the development of new hybrid cultivars well suited for organic production. Thirty-six genotypes (hybrid families) derived from a half diallel cross design were grown under organic crop management at three agro-ecological zones of the tropics. Although the genotypes varied significantly for all the observed ear traits, some of them showed clear inconsistencies in performing husked ear size (length, diameter, and weight), kernel row number, and kernel number per row across environments. The combining ability analysis showed that additive gene action was more preponderance than non-additive gene actions in governing the inheritance of the studied ear traits. The inbred lines: Caps 5, Caps 17A, Caps 17B, and Caps 22 showed their potential as good partners for the improvement of ear performances as to the development of superior sweet corn cultivars for organic production.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41528391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract In order to consider phosphorus (P) limitations in agriculture, research has been carried out on the methods that can improve plant growth and increase the efficiency of P use. A pot experiment was conducted to find the effects of magnetized Ca(H2PO4)2·H2O solutions as P source at concentrations 0, 5, 10, 20 and 40 mg·dm−3 and inoculation with arbuscular mycorrhizal fungi Diversispora versiformis on P use efficiency, growth and photosynthetic pigments in sweet basil. P solutions were treated with magnetic field of 110 mT at 3 dm3·min−1 volumetric flow rate. The results indicated that the growth of basil plant, the number of leaf, leaf area, harvest index and chlorophyll a and b contents significantly increased in the result of fertilization with magnetized P solutions and mycorrhizal inoculation as compared to the control. The application of magnetized P solution at 10 mg P·dm−3 and inoculation of mycorrhizal fungi increased P use efficiency by 18.9% and 23.5%, respectively. Findings of the experiment clearly showed that the use of magnetization of P fertilizer and mycorrhization potentially represent natural ways of promoting growth, P status and chlorophyll content in sweet basil.
{"title":"Magnetized Phosphorus Solution and Mycorrhization with Diversispora versiformis Affect P Use Efficiency, Growth and Photosynthetic Parameters in Sweet Basil (Ocimum basilicum)","authors":"E. Shabani, S. Bolandnazar, S. J. Tabatabaei","doi":"10.2478/johr-2019-0010","DOIUrl":"https://doi.org/10.2478/johr-2019-0010","url":null,"abstract":"Abstract In order to consider phosphorus (P) limitations in agriculture, research has been carried out on the methods that can improve plant growth and increase the efficiency of P use. A pot experiment was conducted to find the effects of magnetized Ca(H2PO4)2·H2O solutions as P source at concentrations 0, 5, 10, 20 and 40 mg·dm−3 and inoculation with arbuscular mycorrhizal fungi Diversispora versiformis on P use efficiency, growth and photosynthetic pigments in sweet basil. P solutions were treated with magnetic field of 110 mT at 3 dm3·min−1 volumetric flow rate. The results indicated that the growth of basil plant, the number of leaf, leaf area, harvest index and chlorophyll a and b contents significantly increased in the result of fertilization with magnetized P solutions and mycorrhizal inoculation as compared to the control. The application of magnetized P solution at 10 mg P·dm−3 and inoculation of mycorrhizal fungi increased P use efficiency by 18.9% and 23.5%, respectively. Findings of the experiment clearly showed that the use of magnetization of P fertilizer and mycorrhization potentially represent natural ways of promoting growth, P status and chlorophyll content in sweet basil.","PeriodicalId":16065,"journal":{"name":"Journal of Horticultural Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47174091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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