Respuesta de variedades de arroz sometida a diferentes edades de transplante en el sitio la cuca

Abstract

The study on the response of rice varieties subjected to different transplanting ages at La Cuca site, in the Arenillas, El Oro, Ecuador, aimed to evaluate the production of four rice varieties under different transplanting ages to determine the optimal transplanting time for each variety. The addressed issue focuses on the need to maintain rice presence in the national market dueto population growth, requiring the implementation of sustainable agricultural practices to ensure high levels of productivity with reduced environmental impacts. The methodology used was a Completely Randomized Block Design (CRBD) with a Bifactorial arrangement (Factor A: Transplanting Days, and, Factor B: Rice Varieties), employing the varieties SFL-11, FERÓN, ÉLITE, and INIAP-IMPACTO, with 12 treatments and 4 replications, totaling 48 Experimental Units (EU). The varieties were transplanted at 15, 18, and 21 days after sowing (dds) to assess their effect on various variables such as tiller number per plant, plant height, grains per panicle, weight of 1000 grains, paddy rice yield (qq/ha), and financial analysis. The results indicate that the SFL-11 variety transplanted at 15 dds outperformed other analyzed treatments. It showed the best statistical averages in evaluated agronomic characteristics, with notable values like 20.13 tillers/plant, 81 cm plant height, 98 grains/panicle, 26.67 g weight per 1000 grains, and a yield of 92 qq/ha. These findings suggest that early transplanting favors the development and productivity of SFL-11 rice under specific study conditions.