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- Title
PRODUCCTIVIDAD DE BIOMASA FORRAJERA AÉREA DE VARIEDADES DE TRIGO (Triticum aestivum L.) Y SU RELACIÓN CON COORDENADAS CROMÁTICAS DERIVADAS DE CAMARA DIGITAL.
- Authors
Luis Tiedemann, José
- Abstract
The aerial forage biomass productivity (AFBP) of wheat varieties (Triticum aestivum L.) was quantified and compared using ANAVA in a facility located at Colonia El Simbolar, Santiago del Estero, Argentina. AFBP of the varieties were related to digital camera-derived chromatic coordinates and from the data lineal models were adjusted. Significant differences in the accumulated AFBP (which ranged from 4.4 and 5.6 tn ms ha-1) among varieties were not found. On the contrary, significant differences were found in the AFBP of the third (R2 = 0.55; p<0.01) and fourth (R2 = 0.47; p<0.01) cut, being Yarara (2.1 tn ms ha-1) and Gladiator (1.1 tn ms ha-1 ) varieties those with the highest productivity: Strong inverse (r -0.99; r -0.88) and straight (r 0.96) relationships were found among the AFBP of the varieties and the integrate chromatic coordinate Σcct. It is highlighted that the simple chromatic coordinate Σcct (red) showed strong inverse relationship with the AFPB of the varieties Yarara and Gladiator with a r -0.99 for both varieties. The lineal models adjusted by the AFPB and the chromatic coordinate presented a high explanatory power with a R2 Aj ranging between 0.71 and 0.99. The digital camera-derived chromatic coordinates allow for the aerial forage biomass productivity of wheat varieties to be quantified easily and economically.
- Publication
Ecologia Aplicada, 2018, Vol 17, Issue 1, p61
- ISSN
1726-2216
- Publication type
Article
- DOI
10.21704/rea.v17i1.1174