Revista Brasileira De Fruticultura最新文献_第10页

Nutrient reference values for ‘Prata-Anã’ banana in improved chemical fertility soils 改良化学肥力土壤中“Prata-Anã”香蕉的养分参考值

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022570

M. Santos, S. Donato, J. Neves, P. R. Marques, M. C. Pereira, M. G. V. Rodrigues

{"title":"Nutrient reference values for ‘Prata-Anã’ banana in improved chemical fertility soils","authors":"M. Santos, S. Donato, J. Neves, P. R. Marques, M. C. Pereira, M. G. V. Rodrigues","doi":"10.1590/0100-29452022570","DOIUrl":"https://doi.org/10.1590/0100-29452022570","url":null,"abstract":"Abstract The objective of this work was to establish, through different diagnostic methods, nutrient reference values for ‘Prata-Anã’ banana in improved fertility soil. The study included a database from an experiment conducted in randomized block design, arranged in a 5 × 6 factorial scheme (five doses of K2O - 0; 200; 400; 600 and 800 kg ha-1, supplied by cattle manure and rock powder × six evaluations of leaf nutrition and yield – 210; 390; 570; 750; 930 and 1,110 days after planting), with three replicates, totaling 90 samples. The reference values were determined by the Sufficiency Range, Critical Level by the Reduced Normal Distribution, Boundary Line and Mathematical Chance methods. Plots with high yield, = 36.42 t ha-1 cycle-1, formed the reference population and plots with yield = 45.79 t ha-1 formed the reference subpopulation. The methods were efficient in determining the nutrient reference values of ‘Prata-Anã’ banana. In general, the values established are higher than those reported in the literature, justified by the greater chemical fertility of the soil. Among the diagnostic methods, the Mathematical Chance presented itself as the most accurate for interpreting the nutrient contents in the leaves of ‘Prata-Anã’ banana under improved soil fertility conditions.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67379741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of the maturity stage on harvest point of fruits and physiological quality of Physalis peruviana L. seeds 成熟期对紫Physalis l.l .果实收获点及种子生理品质的影响

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022848

Natália dos Santos Barroso, Josandra Souza Teles Fonseca, Cristiane Amaral da Silva Ramos, Marilza Neves do Nascimento, T. L. Soares, C. R. Pelacani

{"title":"Impact of the maturity stage on harvest point of fruits and physiological quality of Physalis peruviana L. seeds","authors":"Natália dos Santos Barroso, Josandra Souza Teles Fonseca, Cristiane Amaral da Silva Ramos, Marilza Neves do Nascimento, T. L. Soares, C. R. Pelacani","doi":"10.1590/0100-29452022848","DOIUrl":"https://doi.org/10.1590/0100-29452022848","url":null,"abstract":"Abstract The objective of this work was to evaluate the physical-chemical and physiological changes during the maturation of fruits and seeds of P. peruviana and to determine the best stage for harvesting in the Brazillian semi-arid conditions. The fruits of P. peruviana were collected at five stages of maturation based on the color of the epicarp: stage 1: light green fruit; stage 2: yellowish-green; stage 3: light yellow with green color in the area that connects to the calyx; stage 4: yellow; stage 5: yellowish-orange. Physical and physico-chemical (length, diameter, fresh weight, fruit and calyx color, and total soluble solids) characteristics were evaluated. The physiological characteristics of the seeds were evaluated for water content and dry weight, germination percentage, germination speed index, emergence percentage, emergence speed index were also determined. The highest values of fruit weight, width, length and total soluble solids were recorded from stage S5, although it did not differ from stages S3 and S4. P. peruviana seeds reached their maximum physiological quality from S3 stage. On the other hand, the harvesting of fruits with characteristics meeting the minimum standards required for sale and consumption in natura should be carried out when the fruit and the calyx appear completely yellow, in the S4 stage. These findings point out which attributes may help improve current methods for monitoring ripening of physalis, in particular the commercially important specie P. peruviana.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67380361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Bud dormancy evolution in apple genotypes with contrasting chilling requirements 不同低温条件下苹果基因型芽休眠的进化

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022868

R. Anzanello, F. B. Fialho, H. P. Santos

{"title":"Bud dormancy evolution in apple genotypes with contrasting chilling requirements","authors":"R. Anzanello, F. B. Fialho, H. P. Santos","doi":"10.1590/0100-29452022868","DOIUrl":"https://doi.org/10.1590/0100-29452022868","url":null,"abstract":"Abstract This work evaluates how thermal regimes with constant or oscillating temperatures affect the onset and overcome of endodormancy in apple buds with low (‘Castel Gala’) and high (‘Royal Gala’) chilling requirements. Apple twigs were collected in Papanduva-SC orchards during the autumn/winter of 2010 and 2011, and submitted to constant (3°C) or cycling (3/15°C for 6/18h, 12/12h or 18/6h) temperatures for up to 1466 chilling hours (CH). Periodically, a portion of twigs in each treatment was transferred to 25°C, for budburst evaluation. An environmental stress in 2010 caused premature leaf fall on the field, reduced initial budburst in ‘Royal Gala’ samples and interfered with dormancy onset in both cultivars. Cycling temperature treatments with few CH/day decreased partially this effect, allowing buds to enter a dormancy state more efficiently. No significant stress was observed in the orchard in 2011, when dormancy evolution was similar in all thermal treatments, being induced with 54 and 123 CH and overcome with 363 and 662 CH for ‘Castel Gala’ and ‘Royal Gala’, respectively. Apparently, the manner in which apple bud dormancy is induced affects its depth and consequently the total number of chilling hours required to overcome it, making the onset phase fundamental in dormancy studies.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67380741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reaction of passion fruit species to Rotylenchulus reniformis and Meloidogyne incognita 百香果类植物对小叶蝉和小叶蝉的反应

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022923

Aline Mayara Gonçalves Barros Silva, M. M. Inomoto

{"title":"Reaction of passion fruit species to Rotylenchulus reniformis and Meloidogyne incognita","authors":"Aline Mayara Gonçalves Barros Silva, M. M. Inomoto","doi":"10.1590/0100-29452022923","DOIUrl":"https://doi.org/10.1590/0100-29452022923","url":null,"abstract":"Abstract Passion fruit (Passiflora spp.) yield is limited by several factors, including soil pathogens, such as Rotylenchulus reniformis (the reniform nematode) and Meloidogyne incognita (the Southern root-knot nematode). Understanding the behavior of different cultivars, within different species of passion fruit could be important asset to the search for sources of resistance, and therefore for the effective management of phytonematodes. Three trials were carried out in greenhouse to evaluate the resistance/susceptibility of different passion fruit species to R. reniformis and M. incognita. For R. reniformis, cultivars from two species were tested: Passiflora edulis f. flavicarpa (‘BRS Sol do Cerrado’, ‘BRS Rubi do Cerrado’ and ‘BRS Gigante Amarelo’) and Passiflora cincinnata (‘BRS Sertão Forte’). Regarding M. incognita, all the cultivars above were evaluated, with the addition of Passiflora setacea (‘BRS Pérola do Cerrado’). The results showed that all tested cultivars were susceptible to the reniform nematode. Conversely, all tested cultivars were immune to root-knot nematode, although exhibiting root galling. Therefore, it is emphasizes the relevance of reniform nematode to passion fruit crops.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67381034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nutritional demand of 'Grande Naine' and 'Prata Comum' banana bunches in two growing seasons “Grande Naine”和“Prata Comum”香蕉串在两个生长季节的营养需求

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022430

C. Oliveira, D. Rozane, Levi Godke Faber Pavarin, Henrique Shiniyti Akamine, S. H. M. G. D. Silva, J. D. Lima

{"title":"Nutritional demand of 'Grande Naine' and 'Prata Comum' banana bunches in two growing seasons","authors":"C. Oliveira, D. Rozane, Levi Godke Faber Pavarin, Henrique Shiniyti Akamine, S. H. M. G. D. Silva, J. D. Lima","doi":"10.1590/0100-29452022430","DOIUrl":"https://doi.org/10.1590/0100-29452022430","url":null,"abstract":"Abstract The quantification of nutrients accumulated and exported by banana bunches provides information on the crop nutritional requirements. Thus, the aim of this work was to determine the nutritional demand of 'Grande Naine' and 'Prata Comum' banana bunches in the region of Vale do Ribeira, state of São Paulo. Bunch sampling was carried out in six harvest seasons, summer, and winter. The results of dry matter production and nutrient accumulation in bunches were submitted to analysis of variance. Relative growth rates (TCR), organogenic net accumulation (TALON), export and order of nutrient accumulation in bunches were estimated. K and N were the nutrients most accumulated and exported by both cultivars. In har-vest period 5 (commercial harvest), more dry matter was produced in the summer and more nutrients were accumulated in the winter. The highest TCR values were observed between periods 2 and 3 in the summer and between 0 and 1 in the winter, but it did not always follow TALON. The results obtained are important to adapt the nutritional management of these cultivars to the study region, especially in relation to the growing season, due to the longer permanence of the bunch on the plant in the winter and greater demand for nutrients until commercial harvest.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67379876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Colorimetric variation and correlation of biometric parameters between umbu matrices umbu基质间的比色变化及生物特征参数的相关性

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022479

Maria Monique Tavares Saraiva, Laesio Pereira Martins, R. D. Araújo, Oziel Nunes da Cruz, F. Lucena, Amanda Dias Costa

{"title":"Colorimetric variation and correlation of biometric parameters between umbu matrices","authors":"Maria Monique Tavares Saraiva, Laesio Pereira Martins, R. D. Araújo, Oziel Nunes da Cruz, F. Lucena, Amanda Dias Costa","doi":"10.1590/0100-29452022479","DOIUrl":"https://doi.org/10.1590/0100-29452022479","url":null,"abstract":"Abstract The umbu tree is an endemic species and is found in the Brazilian semi-arid. Umbu is highly appreciated for its socioeconomic importance and significant diversity of quality attributes. This study aims to explore the color-related variations between umbu matrices, and to evaluate the correlation between the main biometric attributes of quality. With this, 14 matrices were explored at the commercial ripening stage and submitted to colorimetric analysis (a*, b*, C* and L*) and determination of biometric parameters (fruit mass, length, width, shape, firmness, percentages of peel, seed, pulp, and yield). The colorimetric parameters were evaluated by the Scott-Knott mean test and dendrogram, and biometrics were submitted to linear correlation analysis. It was observed that in the peel green predominates, compared to the pulp, and the lowest luminosity indexes (L*) consist of the fruits with hairy peel. The saturation (C*) has a direct relationship with parameter b*; in addition, the dendrogram indicates the formation of four groups between the matrices. The correlation analysis of biometric parameters showed significant tendencies. Therefore, the results reinforce that the parameters evaluated can provide an important tool in selecting and quality control these fruits, since the required characteristics change according to their commercial purpose.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67380020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Alleviating the adverse effects of deficit irrigation in Flame seedless grapevine via Paulsen interstock 利用保尔森砧木缓解火焰无籽葡萄亏缺灌溉的不利影响

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022839

M. A. Fayek, A. Rashedy, A. Ali

{"title":"Alleviating the adverse effects of deficit irrigation in Flame seedless grapevine via Paulsen interstock","authors":"M. A. Fayek, A. Rashedy, A. Ali","doi":"10.1590/0100-29452022839","DOIUrl":"https://doi.org/10.1590/0100-29452022839","url":null,"abstract":"Abstract Using interstock with a potential genetic base is considered more recent and sustainable strategy for mitigating the water deficit. This investigation was carried out on transplant of Flame seedless (Vitis vinifera) grapevine grafted onto two rootstocks namely; Freedom (Vitis champinii x 1613C) and 1103Paulsen (vitis berlandieri x Vitis rupestris) with or without 1103Paulsen as interstock to determine its performance under deficit irrigation condition (50% of field capacity). The results indicated that Paulsen as rootstock or as interstock significantly increased the growth vigor of Flame seedless scion as well as the leaf content of total proline, phenols and sugars. Paulsen rootstock has decreased stomatal conductance, leaf transpiration rate and increased diffusion resistance under 50% deficit irrigation compared with grafting on Freedom rootstock. Moreover, Paulsen as interstock for Flame seedless grafted onto Freedom rootstock significantly increased relative water content accompanied by an increase in thickness of leaf anatomical characters such as midvein, lamina, palisade, xylem and phloem tissue under deficit irrigation compared with grafts without Paulsen interstock. This study suggests that using Paulsen as interstock, can be an adaptation strategy for water stress through controlling in some morphological, chemical physiological and anatomical responses of scion.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67380422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Economic analysis of fertilization management in ‘Prata-Anã’ Gorutuba banana plants “Prata-Anã”Gorutuba香蕉植株施肥管理的经济分析

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022851

Matheus Pena Campos, L. A. S. Pio, J. Rufini, J. S. B. Bueno Filho, P. C. D. Melo, Ana Claudia Costa

{"title":"Economic analysis of fertilization management in ‘Prata-Anã’ Gorutuba banana plants","authors":"Matheus Pena Campos, L. A. S. Pio, J. Rufini, J. S. B. Bueno Filho, P. C. D. Melo, Ana Claudia Costa","doi":"10.1590/0100-29452022851","DOIUrl":"https://doi.org/10.1590/0100-29452022851","url":null,"abstract":"Abstract Brazilian banana farming is one of the most important agricultural activities in the national scenario and can be highly productive and economically profitable for producers who invest in technology. The objective of this work was to compare the economic viability of two different fertilization managements in the cultivation system of 1st -cycle ‘Prata Anã’ Gorutuba bananas. The conventional fertilization treatment (CM), adopted by the producer (control), was compared with the alternative treatment: conventional management + 3 soil conditioners + 1 biostimulant (CM + 3SC + 1B). The four products selected for the alternative treatment were oyster shell limestone, Celtonite, Lithothamnium calcareum and Acadian. The application of the four products in the CM + 3SC + 1B treatment provided satisfactory results on crop performance, mainly due to the increase of 4.032 tons ha-1. The CM+3CS+1B alternative management was more economically viable than CM, as the total operational cost (1st + 2nd year) of the alternative management was 6.71% higher compared to the conventional management; however, the alternative treatment productivity was 28.08% higher. The cost to produce one ton of bananas was R$ 2.456,91 in the conventional treatment and R$ 2.047,07 in the alternative treatment, which represents a 16.68% reduction in the average cost, indicating the economic feasibility of this treatment.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67380577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Water soaking and benzyladenine as strategy for improving grapevine grafting success 水浸泡和苯ladenine作为提高葡萄嫁接成功率的策略

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022946

M. A. Fayek, A. Ali, A. Rashedy

{"title":"Water soaking and benzyladenine as strategy for improving grapevine grafting success","authors":"M. A. Fayek, A. Ali, A. Rashedy","doi":"10.1590/0100-29452022946","DOIUrl":"https://doi.org/10.1590/0100-29452022946","url":null,"abstract":"Abstract The grafting of grapevines has become essential to overcome biotic and abiotic stresses because permits access to the benefits of the agronomical characteristics of different rootstocks. Stimulating the rapid formation of the grafting union is the key to grafting success. This investigation studied the effect of removing growth inhibitors through soaking in water for 24 hours versus adding growth stimulate through fast dipping in 250 mg/L benzyladenine (BA) for 30 seconds of graft wood before grafting on the grafting success of ‘Flame Seedless’ and ‘Early Sweet’ scions (Vitis vinifera) grafted onto ‘Freedom’ rootstock (Vitis champinii x 1613C). Water soaking came first and followed by treatment of 250 mg/L BA, which significantly improved the grafting success of both cultivars. Grafting success was positively associated with increasing callus formation at the grafting zone, which was accompanied with the highest total indols content, the lowest total phenols content, and peroxidase activity above and below the grafting zone. However, water soaking significantly increased total indols and decreased the total phenols content of the ungrafted cuttings. In this study, it was suggested that the application of water soaking to grafted cuttings prior to grafting is an environmentally friendly and alternative practice for synthetic growth regulators to improve grafted cuttings success.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67381594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Determination of the standard leaf for nutritional diagnosis of assai palm plants 油棕植物营养诊断标准叶片的测定

IF 1 4区农林科学

Revista Brasileira De Fruticultura Pub Date : 2022-01-01 DOI: 10.1590/0100-29452022078

I. Viégas, Antônio Agostinho Muller, M. Costa, E. Ferreira, D. P. Pinheiro, P. Campos

{"title":"Determination of the standard leaf for nutritional diagnosis of assai palm plants","authors":"I. Viégas, Antônio Agostinho Muller, M. Costa, E. Ferreira, D. P. Pinheiro, P. Campos","doi":"10.1590/0100-29452022078","DOIUrl":"https://doi.org/10.1590/0100-29452022078","url":null,"abstract":"Abstract Assai palm is the main palm tree grown in the Brazilian Amazon. Nutritional diagnosis has become an essential tool in management of the crop. The aim of this study was to determine the standard leaf for nutritional diagnosis of the assai palm tree through evaluation of leaf nutrient content and use of two methods of statistical analyses: traditional (univariate) and multivariate. The study was conducted in the municipality of Belém, with eight treatments: the phyllotaxic positions of the leaves (number 2 to 9), in a completely randomized design. The leaf concentration of nutrients (N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn) was determined for performing descriptive analyses, analyses of variance, correlation analysis, and principal component analysis (PCA). Young leaves had greater concentrations of N, P, K, Mg, S, Cu, and Zn, whereas in the older leaves, there were greater concentrations of Ca, B, Fe, and Mn. The leaves that exhibited less variation in nutrient concentrations were from 2 to 5. PCA analysis indicated interaction of positive loads of N-P and Cu-Mg and interaction of negative loads of Ca-Mn. The index of nutrient distribution indicated leaf number 5 as having the lowest factor loading value. Thus, leaf number 5 is most recommended for nutritional diagnosis of assai palm plants through sampling of 25 plants.","PeriodicalId":21334,"journal":{"name":"Revista Brasileira De Fruticultura","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67378620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0