INCITAP   20787
INSTITUTO DE CIENCIAS DE LA TIERRA Y AMBIENTALES DE LA PAMPA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Multivariate analysis of seed nutrients of maize (Zea mays) indicate differences between maize varieties and its technologies.
Autor/es:
J. M. CAMIÑA; J. ZALADARRIAGA HEREDIA; C. A. MOLDES
Lugar:
Merlo, San Luis
Reunión:
Congreso; XXXV Reunión Científica Anual de la Sociedad de Biología de Cuyo; 2017
Institución organizadora:
Sociedad de Biología de Cuyo
Resumen:
Presentwork determined the profile of nine elements (Cr, Co, Mo, Ni, Mn, Ca, Mg, P,and Fe) by ICP-AES on digested seeds with HNO3 in thermostatic waterbath at 100°C for 30 minutes. Samples were collect in 27 sites where it was identified22 maize varieties from six marcs (Don Mario, Dekalb, Syngenta, KWS, Pioneerand DOW) with two technologies, Monsanto and Syngenta. Data was analyzed withUni and Multivariate statisticals. Univariate statistical indicate significantdifferences for three elements, P, Ni and Mg. The most interesting result wasfor P content due that six marcs can be divided in two groups according to Pcontent: DOW, Dekalb and Syngenta contain on average 6700 ppm of P while DonMario, KWS and Pioneer contain on average 3200 ppm of P. Multivariate analysiswas performed using a model with the content of elements Cr, Co, Mo, Ni, and Mnas variables. We consider the technology from each variety looking fordifferences between Monsanto and Syngenta technologies. Scores plot show twogroups with the expected differentiation and loadings plot indicates that suchdifference are given by the influence of variables Mn and Co where highcontents (Co > 2.35 ppm; Mn > 5.5 ppm) correspond to Monsanto technologyand low contents to Syngenta (Co < 1 ppm; Mn < 4.5 ppm). Although thepresent work does not intent to compare physiological quality of twotechnologies, it was possible to determine differences between them using amultivariate model with the content of micronutrients.