000			03086nab a2200397 i 4500
003			BR-BrBNA
005			20250508202000.0
008			250508b2020 bl.mr|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aF50 _b1540
072			_aU10
100			_aTrachta, Mariano Abel
100			_aZanon, Alencar Junior
100			_aAlves, Alexandre Ferigolo
100			_aFreitas, Charles Patrick de Oliveira de
100			_aStreck, Nereu Augusto
100			_aCardoso, Paula de Souza
100			_aSantos, Amanda Thirza Lima
100			_aNascimento, Moises de Freitas do
100			_aRossato, Ioran Guedes
100			_aSimões, Guilherme Penteado
100			_aAmara, Kaleb Emanoel Ferreira do
100			_aStreck, Ijésica Luana
100			_aRodrigues, Luíza Brum
245			_aLeaf area estimation with nondestructive method in cassava
500			_aPublicação on-line; 32 ref.; 5 illus; 2 tables; Sumaries (En)
520			_a ABSTRACT: The objective of this study was to create a single mathematical equation able to estimate the leaf area of different cassava cultivars from one lineal dimension without destroying any plant tissue. Two hundred leaves per cultivar from ten cultivars were used to calibrate the model and more than one hundred leaves per cultivar were used to test its predictive capacity as independent data. All equations were the result of the nonlinear correlation between the leaf area and the length of its central lobe. To validate it as a “general” equation, another set of five cultivars were used. A “specific” equation for each cultivar was also calibrated to compare with the “general” equation’s performance. Cultivar Vassourinha has remarkably different leaf morphology from the other nine cultivars, making the “general” equation’s tendency line deviate and lowering its coefficient of determination. Therefore, one more equation was generated excluding that cultivar and, as a result, it was not possible to estimate the leaf area from all the cultivars using only the “general” equation. The “general without Vassourinha” equation has a high accuracy level when estimating leaf area of the other nine cultivars, plus the extra five cultivars that were included to validate the general equation; all of them present similar leaf morphology. Due to its importance, Vassourinha cultivar’s “specific” equation should be used when estimating leaf area for this cultivar or other cultivars with similar leaf morphology. Key words: Manihot esculenta Crantz, linear dimensions, leaf area index, models.
650			_aMANDIOCA
650			_aÁREA FOLIAR
650			_aMODELO MATEMÁTICO
650			_aMORFOLOGIA VEGETAL
773	0		_01365 _9344638 _dCampinas-SP Instituto Agronômico - Coordenadoria da Pesquisa Agropecuária 1941 _o2024-4960 _tBragantia (Brazil) _x0006-8705 _gv. 49 p. 347-359; (2020) _wBR2025001028
856			_uhttps://www.scielo.br/j/brag/a/pvrfpgKHLj9dddJTgvC3M6Q/?format=pdf&lang=en
942			_cANA
999			_c331389 _d331389