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Univariate and multivariate nonlinear models in productive traits of the sunn hemp Rev. Ciênc. Agron.
Bem,Cláudia Marques de; Cargnelutti Filho,Alberto; Carini,Fernanda; Pezzini,Rafael Vieira.
ABSTRACT Multivariate analysis helps to understand the relationships between dependent variables; this methodology has great potential in several areas of knowledge. The aim of this study was to adjust and compare the univariate and multivariate Gompertz and Logistic nonlinear models to describe the productive traits of sunn hemp (Crotalaria juncea L.). Two uniformity trials were performed, and the following productive traits were analyzed in 376 sunn hemp plants along 94 days of observations (four plants per day): the fresh mass of leaves (FML), the fresh mass of stem (FMS), and the fresh mass of the aerial parts (FMAP). The Gompertz and Logistic univariate models were adjusted for each productive trait. To adjust the multivariate models, the errors...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crotalaria juncea L.; Multivariate analysis; Fresh mass; Growth modeling.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100418
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Plot size related to numbers of treatments and replications, and experimental precision in dwarf pigeon pea Bragantia
Cargnelutti Filho,Alberto; Lavezo,André; Bem,Cláudia Marques de; Carini,Fernanda; Schabarum,Denison Esequiel; Bandeira,Cirineu Tolfo; Kleinpaul,Jéssica Andiara; Wartha,Cleiton Antonio; Silveira,Daniela Lixinski; Pezzini,Rafael Vieira; Thomasi,Rosana Marzari; Simões,Fernanda Martins; Neu,Ismael Mario Márcio.
ABSTRACT The aim of this study was to determine the optimum plot size to evaluate the fresh matter of aerial part of dwarf pigeon pea (Cajanus cajan (L.) Millsp), cultivar IAPAR 43 (Aratã), in scenarios formed by combinations of numbers of treatments, number of replications, and precision levels. The fresh matter of aerial part was weighed on basic experimental units of 1 m × 1 m in three uniformity trials with size of 24 m × 12 m (288 m2 in each trial). The soil heterogeneity index of Smith was estimated. Also, the optimum plot size was determined by Hatheway’s method in scenarios formed by combinations of i treatments (i = 5, 10, 15, and 20), r replications (r = 3, 4, 5, 6, 7 8, 9, and 10), and d precision levels (d = 5%, 10%, 15%, 20%, 25%, and 30%). In...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cajanus cajan L.; Fresh matter of aerial part; Uniformity trial; Experimental design; Cover crops.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052018000200212
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Productive traits of rye cultivars grown under different sowing seasons AGRIAMBI
Kleinpaul,Jéssica A.; Cargnelutti Filho,Alberto; Carini,Fernanda; Pezzini,Rafael V.; Chaves,Gabriela G.; Thomasi,Rosana M..
ABSTRACT This study aimed to adjust the Gompertz and Logistic nonlinear models for the fresh and dry matter of aerial part and indicate the model that best describes the growth of two rye cultivars in five sowing seasons, as well as to characterize the growth of the cultivars regarding the fresh and dry matter of aerial part. Ten uniformity trials were conducted with the rye crop in 2016. A weekly sampling and evaluation of 10 plants per trial was performed from the time the plants presented one expanded leaf. For each plant, the fresh and dry matter of aerial part were weighed. The Gompertz and Logistic models were adjusted to the accumulated thermal time based on the measures of each trait in each assessment. Also the parameters a, b, and c for each...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Secale cereale; Growth models; Nonlinear models; Soil cover plant.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001200937
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Densidade de plantio, crescimento, produtividade e qualidade das frutas de morangueiro "Camino Real" em hidroponia Rev. Bras. Frutic.
Portela,Isabelita Pereira; Peil,Roberta Marins Nogueira; Rodrigues,Silvana; Carini,Fernanda.
Com o objetivo de determinar o efeito da densidade de plantio sobre o crescimento da planta, a produtividade e características químicas relacionadas à qualidade organoléptica das frutas da cultivar de morangueiro Camino Real em sistema hidropônico do tipo NFT, diferentes densidades de plantio foram avaliadas: 15,0; 12,5; 10,7 e 9,3 plantas m-2, correspondentes ao espaçamento entre plantas de 0,25; 0,30; 0,35 e 0,40 m, sendo fixado o espaçamento entre linhas de 0,18 m. O sistema NFT foi constituído por bancadas de telhas de fibrocimento de 1,10 x 2,44 m, considerando-se cada ondulação côncava da telha como um canal de cultivo. O transplante foi realizado em 26-04-2010, encerrando-se o experimento em 05-01-2011. Avaliaram-se a matéria fresca e seca de...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fragaria x ananassa Duch.; Produção e partição de matéria seca; Sólidos solúveis totais; Acidez titulável; Sistema NFT.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000300019
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