MATHEMATICAL MODELLING OF THE LONGEVITY OF CAMU-CAMU SEEDS - DOI: 10.13083/1414-3984/reveng.v23n3p203-211

Abstract

The objective of this work was to obtain a mathematical model of the longevity of camu-camu seeds (Myrciaria dubia (H.B.K.) McVaugh). Experimental data from the bibliography of the survival curves of camu-camu seeds, stored under different moisture contents and temperatures, were used in linear and non linear regressions for determining the coefficients of different longevity models. The coefficients of the recommended models were determined using the values of germination and emergence losses, initial germination and emergence, temperature, average moisture content of the seeds and the storage period for all survival curves. The modified probit model was recommended because it resulted in the best fits for the 57 experimental observations when compared with other three models, as well as for germination loss (R2 of 0.90, standard error of 12.3%, and all model coefficients significant at 0.4% probability level in the t test) and emergence loss (R2 of 0.87, standard error of 13.3%, and all model coefficients significant at 0.1% probability level in the t test).