Utilização do SPAD-502 para a predição dos teores de nitrogênio em mudas de Croton urucurana Baill. (Nota Científica)

Content Provider	Semantic Scholar
Author	Uesugi, Gláucia Favan, João Ricardo Moraes, Cristiano Bueno De Wanginiak, Thayana Cristina Rebello Silva, Magali Ribeiro Da
Copyright Year	2015
Abstract	SPAD-502 portable chlorophyll meter allows to evaluate the nutritional aspect of plant quickly and non-destructively, being widely used in agronomy, but there are few researches in silviculture. Thus, this study aimed to assess the use of SPAD device in predicting the nitrogen content of Croton urucurana seedlings in different doses of nutritive solution. SPAD values were performed in four leaves located in the middle third of seedling and in order to obtain average/plant. The experiment had a randomized block design with three treatments of increasing doses of nutritive solution, four plots of 12 plants in each treatment. The results were submitted to analysis of variance and Tukey test at 5% probability. There was correlation between SPAD readings and N content (R2 = 0.87), and there was a positive correlation in less concentrated doses. The use of the SPAD-502 may be indicated as an alternative to predict the nitrogen content of Croton urucurana seedlings.
Starting Page	177
Ending Page	181
Page Count	5
File Format	PDF HTM / HTML
DOI	10.4322/rif.2015.014
Volume Number	27
Alternate Webpage(s)	https://www.infraestruturameioambiente.sp.gov.br/institutoflorestal/wp-content/uploads/sites/234/2016/03/RIF27-2_177-181.pdf
Alternate Webpage(s)	http://doi.editoracubo.com.br/10.4322/rif.2015.014
Alternate Webpage(s)	https://doi.org/10.4322/rif.2015.014
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article