Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2626
Fatemeh Badizadegan, M. Solgi, M. Taghizadeh, A. Abbasifar
Abstract Zamiifolia (Zamioculcas zamiifolia) is an ornamental and perennial medicinal plant, which belongs to Araceae family. This plant holds a prominent place in the economic significance of this particular plant family. This study aimed to examine the process of root development and rhizome production through leaf cuttings of zamiifoliain the this experiment. This experiment was conducted as factorial design within a completely randomized framework design with three replications. Experimental treatments composed of chitosan application at three levels (0, 250 and 500 mg L-1), and the positioning of leaflet cuttings along the main axis of the mother leaf (apical, middle, and basal). After the application of the treatments, the leaflet cuttings were subjected to a four-month rooting period. This rooting process took place in a growth medium consisting of a balanced mixture of perlite and cocopeat mixed in a volume ratio of 1:1. The results exhibited significant effects of different chitosan concentrations on several parameters, including rhizome number, rhizome width, the number of roots, and the quality of the mother leaf. In addition, the type of leaflet cutting demonstrated a significant influence on the width and number of rhizomes. These results demonstrated that the application of chitosan at concentrations of 250 and 500 mg L-1 had a positive effect and resulted in increased rhizome number, rhizome width, and number of roots. Overall, it can be concluded that chitosan can promote the growth and development of zamiifolia by stimulating rhizome production and improving root proliferation.
{"title":"Effect of chitosan on propagation of zamiifolia as tropical ornamental indoor plant by leaf cutting","authors":"Fatemeh Badizadegan, M. Solgi, M. Taghizadeh, A. Abbasifar","doi":"10.1590/2447-536x.v29i2.2626","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2626","url":null,"abstract":"Abstract Zamiifolia (Zamioculcas zamiifolia) is an ornamental and perennial medicinal plant, which belongs to Araceae family. This plant holds a prominent place in the economic significance of this particular plant family. This study aimed to examine the process of root development and rhizome production through leaf cuttings of zamiifoliain the this experiment. This experiment was conducted as factorial design within a completely randomized framework design with three replications. Experimental treatments composed of chitosan application at three levels (0, 250 and 500 mg L-1), and the positioning of leaflet cuttings along the main axis of the mother leaf (apical, middle, and basal). After the application of the treatments, the leaflet cuttings were subjected to a four-month rooting period. This rooting process took place in a growth medium consisting of a balanced mixture of perlite and cocopeat mixed in a volume ratio of 1:1. The results exhibited significant effects of different chitosan concentrations on several parameters, including rhizome number, rhizome width, the number of roots, and the quality of the mother leaf. In addition, the type of leaflet cutting demonstrated a significant influence on the width and number of rhizomes. These results demonstrated that the application of chitosan at concentrations of 250 and 500 mg L-1 had a positive effect and resulted in increased rhizome number, rhizome width, and number of roots. Overall, it can be concluded that chitosan can promote the growth and development of zamiifolia by stimulating rhizome production and improving root proliferation.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67337197","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}
Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2591
J. Minamiguchi, C. C. Custódio, Nelson Barbosa Machado Neto
Abstract Dendrobium is a large genus of orchids containing more than 1800 species spliced in some sections and many are very attractive such as the group Nobile from section Dendrobium. They are an easy-to-cultivate ornamental group with pseudobulbs cane-like, mostly hard, erect, covered by the bases of the leaves and flowering in almost all internodes. In this work, we tried to develop a cultivar of small size with floriferous plants. The hybrid Dendrobium Aurora’s Orange Hana was produced and showed compact and floriferous plants with varied colours among the offspring. Three superior clones were selected due to a better display, architecture, three to four flowers per node, and vibrant colours. This new cultivar can be easily grown in pots or on living supports, forming compact and very flowering clumps.
{"title":"A new Dendrobium cultivar: Den. ‘Aurora’s Orange Hana’","authors":"J. Minamiguchi, C. C. Custódio, Nelson Barbosa Machado Neto","doi":"10.1590/2447-536x.v29i2.2591","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2591","url":null,"abstract":"Abstract Dendrobium is a large genus of orchids containing more than 1800 species spliced in some sections and many are very attractive such as the group Nobile from section Dendrobium. They are an easy-to-cultivate ornamental group with pseudobulbs cane-like, mostly hard, erect, covered by the bases of the leaves and flowering in almost all internodes. In this work, we tried to develop a cultivar of small size with floriferous plants. The hybrid Dendrobium Aurora’s Orange Hana was produced and showed compact and floriferous plants with varied colours among the offspring. Three superior clones were selected due to a better display, architecture, three to four flowers per node, and vibrant colours. This new cultivar can be easily grown in pots or on living supports, forming compact and very flowering clumps.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67336924","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}
Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2548
Narjess Labbaf, Iman Rohollahi, A. Naji
Abstract Muscari with absorbing color is a widespread and commercial species. As a pot and bedding bulb flower has excellent adaptability and vigorous growth in late winter and early spring. The quantity and uniformity of Muscari propagation by seed and the importance of seed priming will be measured in current experiment. The selected M. neglectum populations which already were gathered in our previews research and M. armeniacum were evaluated under separated sulfuric acid (5, 15, and 20 min) and hot water (5, 15, and 20 min) scarification plus 15, 30, and 45 days stratification in a completely randomized design, four replications were planted in separate containers. Seeds of M. armeniacum only germinate (70%) by 15 min sulfuric acid plus 45-day stratification treatments. Based on the analysis of variance and mean comparison data that only were reported in M. neglectum, their seeds optimally germinated by 5 and 15 min sulfuric acid treatment plus 45-day stratification. In conclusion, M. neglectum seeds germination is tuned to take place well in mid-winter under natural conditions; on the other hand, 45 days of lengthy constant stratification and 5 min sulfuric acid priming will accelerate M. neglectum seeds germination.
{"title":"Muscari seed germination enhancement by using sulfuric acid, and stratification priming","authors":"Narjess Labbaf, Iman Rohollahi, A. Naji","doi":"10.1590/2447-536x.v29i2.2548","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2548","url":null,"abstract":"Abstract Muscari with absorbing color is a widespread and commercial species. As a pot and bedding bulb flower has excellent adaptability and vigorous growth in late winter and early spring. The quantity and uniformity of Muscari propagation by seed and the importance of seed priming will be measured in current experiment. The selected M. neglectum populations which already were gathered in our previews research and M. armeniacum were evaluated under separated sulfuric acid (5, 15, and 20 min) and hot water (5, 15, and 20 min) scarification plus 15, 30, and 45 days stratification in a completely randomized design, four replications were planted in separate containers. Seeds of M. armeniacum only germinate (70%) by 15 min sulfuric acid plus 45-day stratification treatments. Based on the analysis of variance and mean comparison data that only were reported in M. neglectum, their seeds optimally germinated by 5 and 15 min sulfuric acid treatment plus 45-day stratification. In conclusion, M. neglectum seeds germination is tuned to take place well in mid-winter under natural conditions; on the other hand, 45 days of lengthy constant stratification and 5 min sulfuric acid priming will accelerate M. neglectum seeds germination.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67337066","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}
Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2552
R. Sitinjak
Abstract Liquid organic waste from animals can be fermented into liquid organic fertilizer, so it can be an alternative to increase plant growth. This study aims to determine the effect of giving horse and cow urine LOF, as well as its interaction on shoot growth in the Cattleya labiata Lindl orchid plant. The method used is a factorial experimental method with a randomized block design and three replications. Liquid organic fertilizer from horse and cow urine with a concentration of 0%, 10% and 20%. There were 9 treatment combinations with 27 experimental units. The results showed that the LOF application of horse and cow urine and their interactions had a very significant effect on the growth of Cattleya labiata shoot diameter in the 4th week. The application of horse urine LOF and its interaction with cow urine LOF had no significant effect on the growth of the number and height of shoots, but had a very significant effect on the administration of cow urine LOF. The best treatment was found in the application of 20% cow urine LOF without horse urine LOF (K0S2); obtained the highest growth of one shoot 4.8 cm with the highest diameter of 1.8 cm. LOF application of cow urine is more effective in increasing the growth of orchid shoots including: number, height, and diameter of shoots.
{"title":"Potential of liquid organic fertilizer from horse and cow urine on shoot growth of Cattleya labiata Lindl.","authors":"R. Sitinjak","doi":"10.1590/2447-536x.v29i2.2552","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2552","url":null,"abstract":"Abstract Liquid organic waste from animals can be fermented into liquid organic fertilizer, so it can be an alternative to increase plant growth. This study aims to determine the effect of giving horse and cow urine LOF, as well as its interaction on shoot growth in the Cattleya labiata Lindl orchid plant. The method used is a factorial experimental method with a randomized block design and three replications. Liquid organic fertilizer from horse and cow urine with a concentration of 0%, 10% and 20%. There were 9 treatment combinations with 27 experimental units. The results showed that the LOF application of horse and cow urine and their interactions had a very significant effect on the growth of Cattleya labiata shoot diameter in the 4th week. The application of horse urine LOF and its interaction with cow urine LOF had no significant effect on the growth of the number and height of shoots, but had a very significant effect on the administration of cow urine LOF. The best treatment was found in the application of 20% cow urine LOF without horse urine LOF (K0S2); obtained the highest growth of one shoot 4.8 cm with the highest diameter of 1.8 cm. LOF application of cow urine is more effective in increasing the growth of orchid shoots including: number, height, and diameter of shoots.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67337077","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}
Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2555
H. Ashour, S. Heider, M. Soliman
Abstract Salinity is one of abiotic stress that affects plant growth and production. The objective of this study was to investigate the effect of salinity and vermicompost on morphology and physiology parameters of Calliandra haematocephala. The experiment was carried out with salinity treatments at 1000, 2000 3000 ppm in addition to the control (tap water, 280 ppm), vermicompost treatments at 5%, 10%, 15%, and 20% in addition to the control. The results indicated that increasing level of salinity resulted in reduction in vegetative growth and flowering parameters (plant height, number of branches/plant, stem diameter, root length, fresh and dry weights of leaves and roots/plant, number of flowers /plant, as well as fresh and dry weights of flowers /plant), total chlorophylls, total carbohydrates, K+%, Ca2+%, and K+/Na+ ratio, while increased proline, Na+ and Cl−% in the plants. Catalase (CAT), superoxide dismutase (SOD), Ascorbate peroxidase (APX) enzyme activities significantly increased with elevating salinity level from 0 to 3000 ppm. Application of vermicompost with any concentration had a positive effect on vegetative growth and flowering parameters, total chlorophylls, total carbohydrates, nutrient uptake, K+/Na+ ratio, proline content, enzyme activities and reducing accumulation of Na+ and Cl−% toxic ions in leaves. Based on the results, application of vermicompost at 20% recommended for alleviating the harmful efects of salinity on Calliandra haematocephala plants irrigated with saline water at concentration up to 3000 ppm.
{"title":"Morphological and physiological responses of Calliandra haematocephala to water salinity stress and vermicompost","authors":"H. Ashour, S. Heider, M. Soliman","doi":"10.1590/2447-536x.v29i2.2555","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2555","url":null,"abstract":"Abstract Salinity is one of abiotic stress that affects plant growth and production. The objective of this study was to investigate the effect of salinity and vermicompost on morphology and physiology parameters of Calliandra haematocephala. The experiment was carried out with salinity treatments at 1000, 2000 3000 ppm in addition to the control (tap water, 280 ppm), vermicompost treatments at 5%, 10%, 15%, and 20% in addition to the control. The results indicated that increasing level of salinity resulted in reduction in vegetative growth and flowering parameters (plant height, number of branches/plant, stem diameter, root length, fresh and dry weights of leaves and roots/plant, number of flowers /plant, as well as fresh and dry weights of flowers /plant), total chlorophylls, total carbohydrates, K+%, Ca2+%, and K+/Na+ ratio, while increased proline, Na+ and Cl−% in the plants. Catalase (CAT), superoxide dismutase (SOD), Ascorbate peroxidase (APX) enzyme activities significantly increased with elevating salinity level from 0 to 3000 ppm. Application of vermicompost with any concentration had a positive effect on vegetative growth and flowering parameters, total chlorophylls, total carbohydrates, nutrient uptake, K+/Na+ ratio, proline content, enzyme activities and reducing accumulation of Na+ and Cl−% toxic ions in leaves. Based on the results, application of vermicompost at 20% recommended for alleviating the harmful efects of salinity on Calliandra haematocephala plants irrigated with saline water at concentration up to 3000 ppm.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67337141","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}
Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2596
T. Campos, Murilo Paes Patrício, G. R. Vieira, Antonio Maricélio Borges de Souza, C. H. Santos, E. Rigobelo, K. F. L. Pivetta
Abstract The success of any plant development relies on healthy and vigorous seedlings, and the use of rhizobacteria is a sustainable alternative for the production of high-quality seedlings as they positively interfere in plant development. Thus, the objective of this study was to evaluate the effect of rhizobacteria on growth and quality of seedlings of açaí (Euterpe oleracea Mart.), a native palm of Brazil, which has significant ornamental value in addition to the ecological and economic role, mainly by providing sweet heart of palm and fruit pulp. The experimental design was entirely randomized. There were five treatments (Bacillus subtilis, Bacillus megaterium, Bacillus amyloliquefaciens and Azospirillum brasilense plus the absence of microorganisms - control); four replicates and ten plants per plot. The following characteristics were evaluated: shoot height (cm), root length (cm); stem diameter (mm); number of leaves; leaf area (cm2); shoot, and root as well as total dry matter (g). Shoot/root ratio was determined and Dickson Quality Index. The data were submitted to variance analysis and the means were compared using Tukey’s test at 5% probability. Pearson’s correlation matrix was also determined. The rhizobacterium Bacillus subtilis provided higher growth while Bacillus amyloliquefaciens provided lower growth and quality of açaí seedlings.
{"title":"Rhizobacteria in growth and quality of açaí seedlings","authors":"T. Campos, Murilo Paes Patrício, G. R. Vieira, Antonio Maricélio Borges de Souza, C. H. Santos, E. Rigobelo, K. F. L. Pivetta","doi":"10.1590/2447-536x.v29i2.2596","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2596","url":null,"abstract":"Abstract The success of any plant development relies on healthy and vigorous seedlings, and the use of rhizobacteria is a sustainable alternative for the production of high-quality seedlings as they positively interfere in plant development. Thus, the objective of this study was to evaluate the effect of rhizobacteria on growth and quality of seedlings of açaí (Euterpe oleracea Mart.), a native palm of Brazil, which has significant ornamental value in addition to the ecological and economic role, mainly by providing sweet heart of palm and fruit pulp. The experimental design was entirely randomized. There were five treatments (Bacillus subtilis, Bacillus megaterium, Bacillus amyloliquefaciens and Azospirillum brasilense plus the absence of microorganisms - control); four replicates and ten plants per plot. The following characteristics were evaluated: shoot height (cm), root length (cm); stem diameter (mm); number of leaves; leaf area (cm2); shoot, and root as well as total dry matter (g). Shoot/root ratio was determined and Dickson Quality Index. The data were submitted to variance analysis and the means were compared using Tukey’s test at 5% probability. Pearson’s correlation matrix was also determined. The rhizobacterium Bacillus subtilis provided higher growth while Bacillus amyloliquefaciens provided lower growth and quality of açaí seedlings.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67337040","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}
Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2656
P. Paiva, M. Z. Beckmann-Cavalcante
{"title":"What does Tropical and Subtropical Plant mean?","authors":"P. Paiva, M. Z. Beckmann-Cavalcante","doi":"10.1590/2447-536x.v29i2.2656","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2656","url":null,"abstract":"","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67337323","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}
Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2650
M. Fernandes, Thaís Pires Roso, Leticia Ferronato, C. P. D. O. Freitas, Regina Tomiozzo, L. O. Uhlmann, A. Zanon, N. Streck
Abstract Dahlia is an important ornamental crop and widely used as a garden plant in beds and mixed borders as well as a cut flower in bouquets and flower arrangements. Understanding the factors that support sustainable flower production is essential for dahlia growers to increase their profits. Two key variables that define leaf development during the vegetative phase of a crop are the rate of appearance of leaves on the main stem and the final number of leaves. The objective in this study was to determine the phyllochron and the final leaf pair number (FLPN) in cut dahlias cultivars grown in different locations. Three on farm experiments varying from two to eight cut dahlia cultivars were conducted during two years (2021/2022) in six locations in Rio Grande do Sul State, Southern Brazil. The number of unfolded leaf pairs (NLP - an unfolded leaf was assumed when the foliolates edges were not touching anymore) on each plant was counted once or twice a week, depending on the farm, until the last leaf pair was unfolded. The NLP was linearly regressed against TT (thermal time °C day-1) and the phyllochron (oC day leaf pair-1) was calculated as the slope of the linear regression. The results indicated that the phyllochron of dahlia cultivars varied between 45.7 to 95.6 °C pair of leaves-1 and 8 to 14 of final number of pair of leaves in the first experiment, 27.2 to 97.4 °C pair of leaves-1 and 6 to 15 of final leaf pair number in the second experiment and 46.8 at 106.4 °C leaf pair-1 and 6 to 13 the final leaf pair number in the third. Thus, there was no significant difference between the sites in the phyllochron and NFP variables.
{"title":"Determining the phyllochron and final leaf pair number in on-farm cut dahlia cultivars","authors":"M. Fernandes, Thaís Pires Roso, Leticia Ferronato, C. P. D. O. Freitas, Regina Tomiozzo, L. O. Uhlmann, A. Zanon, N. Streck","doi":"10.1590/2447-536x.v29i2.2650","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2650","url":null,"abstract":"Abstract Dahlia is an important ornamental crop and widely used as a garden plant in beds and mixed borders as well as a cut flower in bouquets and flower arrangements. Understanding the factors that support sustainable flower production is essential for dahlia growers to increase their profits. Two key variables that define leaf development during the vegetative phase of a crop are the rate of appearance of leaves on the main stem and the final number of leaves. The objective in this study was to determine the phyllochron and the final leaf pair number (FLPN) in cut dahlias cultivars grown in different locations. Three on farm experiments varying from two to eight cut dahlia cultivars were conducted during two years (2021/2022) in six locations in Rio Grande do Sul State, Southern Brazil. The number of unfolded leaf pairs (NLP - an unfolded leaf was assumed when the foliolates edges were not touching anymore) on each plant was counted once or twice a week, depending on the farm, until the last leaf pair was unfolded. The NLP was linearly regressed against TT (thermal time °C day-1) and the phyllochron (oC day leaf pair-1) was calculated as the slope of the linear regression. The results indicated that the phyllochron of dahlia cultivars varied between 45.7 to 95.6 °C pair of leaves-1 and 8 to 14 of final number of pair of leaves in the first experiment, 27.2 to 97.4 °C pair of leaves-1 and 6 to 15 of final leaf pair number in the second experiment and 46.8 at 106.4 °C leaf pair-1 and 6 to 13 the final leaf pair number in the third. Thus, there was no significant difference between the sites in the phyllochron and NFP variables.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67337264","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}
Pub Date : 2023-07-31DOI: 10.1590/2447-536x.v29i2.2618
Antonio Maricélio Borges de Souza, G. R. Vieira, André Caturelli Braga, Murilo Paes Patrício, T. Campos, K. F. L. Pivetta
Abstract Studies on biometry are considered important tools for understanding the germination process of seeds. Moreover, the ex-situ conservation of palm seeds can cause loss of viability over time. The present study aimed to evaluate the biometric characterization and the effect of storage on the seed germination of the Triangle Palm (Dypsis decaryi), a widely used species in Brazilian landscaping. Two independent studies were conducted: I) biometric characterization of diaspores and II) effect of storage in seed germination. For biometry, a sample of 100 diaspores was used and the length, width and thickness were measured. Biometric data were analyzed using descriptive statistics and correlation analysis. The seeds were packed in transparent plastic bags kept in a refrigerator (20 ± 2 ºC and 80% relative humidity) for storage evaluation. The experimental design was entirely randomized. The treatments consisted of six storage periods (0 - control, 30, 60, 90, 120 and 150 days); there were four repetitions and 25 seeds per plot. The germination percentage and germination speed index were evaluated. Diaspores showed little variation in their biometric characteristics, with a mean of 18.39 mm in length, 16.10 mm in width and 15.96 mm in thickness. There was significant and positive correlation between all biometric characteristics. It was observed that germination remained stable until 30 days of storage (90%), with a gradual percentage decrease in later periods. The seed storage allowed to maintain its viability and longevity with the ability to germinate, reaching a germination percentage of 63% after 150 days of storage.
生物计量学研究被认为是了解种子萌发过程的重要工具。此外，随着时间的推移，棕榈种子的异地保存可能会导致生存能力的丧失。本文研究了巴西园林绿化中广泛应用的三角棕榈(Dypsis decaryi)的生物特征特征及其贮藏对种子萌发的影响。进行了两项独立的研究:1)多聚体的生物特征表征和2)种子萌发过程中储存的影响。生物计量学采用100个聚丙烯酸树脂样品，测量其长度、宽度和厚度。生物特征数据采用描述性统计和相关分析进行分析。将种子装入透明塑料袋中，放入冰箱(20±2℃，80%相对湿度)进行储存评价。实验设计完全随机化。处理包括0、30、60、90、120和150 d 6个贮藏期;重复4次，每小区25粒。测定萌发率和萌发速度指数。一水硬膜的生物特征变化不大，平均长度为18.39 mm，宽度为16.10 mm，厚度为15.96 mm。各生物特征间存在显著正相关。在贮藏30天前，萌发率保持稳定(90%)，后期萌发率逐渐下降。种子储存可以保持其活力和发芽能力，在储存150天后达到63%的发芽率。
{"title":"Biometry and storage of Triangle Palm seeds","authors":"Antonio Maricélio Borges de Souza, G. R. Vieira, André Caturelli Braga, Murilo Paes Patrício, T. Campos, K. F. L. Pivetta","doi":"10.1590/2447-536x.v29i2.2618","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i2.2618","url":null,"abstract":"Abstract Studies on biometry are considered important tools for understanding the germination process of seeds. Moreover, the ex-situ conservation of palm seeds can cause loss of viability over time. The present study aimed to evaluate the biometric characterization and the effect of storage on the seed germination of the Triangle Palm (Dypsis decaryi), a widely used species in Brazilian landscaping. Two independent studies were conducted: I) biometric characterization of diaspores and II) effect of storage in seed germination. For biometry, a sample of 100 diaspores was used and the length, width and thickness were measured. Biometric data were analyzed using descriptive statistics and correlation analysis. The seeds were packed in transparent plastic bags kept in a refrigerator (20 ± 2 ºC and 80% relative humidity) for storage evaluation. The experimental design was entirely randomized. The treatments consisted of six storage periods (0 - control, 30, 60, 90, 120 and 150 days); there were four repetitions and 25 seeds per plot. The germination percentage and germination speed index were evaluated. Diaspores showed little variation in their biometric characteristics, with a mean of 18.39 mm in length, 16.10 mm in width and 15.96 mm in thickness. There was significant and positive correlation between all biometric characteristics. It was observed that germination remained stable until 30 days of storage (90%), with a gradual percentage decrease in later periods. The seed storage allowed to maintain its viability and longevity with the ability to germinate, reaching a germination percentage of 63% after 150 days of storage.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67337173","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}
Pub Date : 2023-03-01DOI: 10.1590/2447-536x.v29i1.2617
V. Bugallo, G. Facciuto
Abstract The selection is a process in which the best genotypes are chosen according to the desired characteristics for the specific use of the plant. Novelty, health, particular characteristics of each market and, increasingly, the low environmental impact of its production, are valued. One of the most questionable points in the selection of ornamental plants is the fact that beauty is subjective. To reduce subjectivity, breeders have chosen to delimit the selection criteria previously, generating a ranking and assigning values to each of the characters for the new cultivar. The selection criteria and traits to be evaluated depend on the use for which the crop is intended: cut flowers and foliage, pot plants, and landscape plants. In addition, the selection of functional plants (green walls and curtains, green roofs and ecological function plants) have their own criteria.
{"title":"Selection process in ornamental plant breeding","authors":"V. Bugallo, G. Facciuto","doi":"10.1590/2447-536x.v29i1.2617","DOIUrl":"https://doi.org/10.1590/2447-536x.v29i1.2617","url":null,"abstract":"Abstract The selection is a process in which the best genotypes are chosen according to the desired characteristics for the specific use of the plant. Novelty, health, particular characteristics of each market and, increasingly, the low environmental impact of its production, are valued. One of the most questionable points in the selection of ornamental plants is the fact that beauty is subjective. To reduce subjectivity, breeders have chosen to delimit the selection criteria previously, generating a ranking and assigning values to each of the characters for the new cultivar. The selection criteria and traits to be evaluated depend on the use for which the crop is intended: cut flowers and foliage, pot plants, and landscape plants. In addition, the selection of functional plants (green walls and curtains, green roofs and ecological function plants) have their own criteria.","PeriodicalId":19699,"journal":{"name":"Ornamental Horticulture","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42137910","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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