Sample unit for determining the average fruit mass in lychee plants under organic and traditional systems

Andrade, Renata Aparecida de; Jasper, Samir Paulo

DSpace Principal
→
Colección de los Centros Asociados
→
Brasil
→
Núcleo de Pesquisa sobre Crianças, Adolescestes e Jovens - Universidade Federal do Piauí - NUPEC/UFPI - Cosecha
→
Ver ítem

dc.creator	Andrade, Renata Aparecida de
dc.creator	Jasper, Samir Paulo
dc.date	2012-06-28
dc.date.accessioned	2022-03-21T20:06:57Z
dc.date.available	2022-03-21T20:06:57Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/106
dc.identifier	10.14295/cs.v3i2.106
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77527
dc.description	The experimental unit of measurement is a suitable technique to estimate the average character in evaluation, and experimentation should be well understood and executed, because the precision characterizes the quality of the inferences of the results. This research aimed to analyze the possibility to obtaining the quantity of fruit required for sampling of lychee plants, to determining the average mass of the fruits, with less sampling error. One hundred fruits were collected, in a hectare, in two cropping systems, conventional and organic, being one fruit per plant. From the data of fruit mass was used the Excel® to calculate the average fruit mass and number of fruits samples needed to represent the area of the producer. The results show that to achieve a sampling error of 10% for determining the average mass of fruit, 400 fruits should be collected for organic system and 370 for the conventional, while for 20% sampling error, it is necessary to collect 250 fruits per hectare in organic system and 220 in the conventional.	en-US
dc.description	A mensuração da unidade experimental consiste numa técnica adequada para estimar a média do caráter em avaliação, sendo que a experimentação deve ser bem compreendida e executada, pois a precisão caracteriza a qualidade das inferências dos resultados. Objetivou-se verificar a possibilidade de obter a quantidade de frutos para amostragem de lichieira, para determinação de massa média dos frutos, com menor erro amostral. Foram coletados 100 frutos, em um único hectare, em dois sistemas de cultivo, sendo um fruto por planta. A partir dos dados de massa dos frutos foi utilizada a ferramenta do Excel® para o cálculo da massa média dos frutos e do número de amostras de frutos necessárias para representar a área do produtor. Os resultados mostram que, desejando atingir um erro amostral de 10% para a determinação da massa média dos frutos, devem ser coletados 400 frutos para cultivo orgânico e 370 para convencional, enquanto que para erro amostral de 20%, são necessários 250 frutos por hectare no cultivo orgânico e 220 no convencional. Sample unit for determining the average fruit mass in lycheeplants under organic and traditional systemsThe experimental unit of measurement is a suitable technique to estimate the average character inevaluation, and experimentation should be well understood and executed, because the precisioncharacterizes the quality of the inferences of the results. This research aimed to analyze the possibilityto obtaining the quantity of fruit required for sampling of lychee plants, to determining the averagemass of the fruits, with less sampling error. One hundred fruits were collected, in a hectare, in twocropping systems, conventional and organic, being one fruit per plant. From the data of fruit masswas used the Excel® to calculate the average fruit mass and number of fruits samples needed torepresent the area of the producer. The results show that to achieve a sampling error of 10% fordetermining the average mass of fruit, 400 fruits should be collected for organic system and 370for the conventional, while for 20% sampling error, it is necessary to collect 250 fruits per hectare inorganic system and 220 in the conventional.	pt-BR
dc.format	application/pdf
dc.language	por
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/106/124
dc.source	Comunicata Scientiae; Vol. 3 No. 2 (2012); 139-142	en-US
dc.source	Comunicata Scientiae; v. 3 n. 2 (2012); 139-142	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	sampling	en-US
dc.subject	Litchi chinensis	en-US
dc.subject	cropping systems	en-US
dc.subject	amostragem	pt-BR
dc.subject	Litchi chinensis	pt-BR
dc.subject	sistemas de cultivo	pt-BR
dc.title	Sample unit for determining the average fruit mass in lychee plants under organic and traditional systems	en-US
dc.title	Unidade amostral para determinação de massa média de frutos em lichieira em sistema orgânico e convencional	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion