INTECH   27907
INSTITUTO TECNOLOGICO DE CHASCOMUS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
OJIP TEST IN RICE UNDER SEVERAL LEVELS OF ZN
Autor/es:
MAIALE SANTIAGO
Reunión:
Congreso; XXXII RAFV and XVI CLFV; 2018
Resumen:
Rice is an important crop in the world with near 700million tons of production in paddy basis. In Argentina,is a regional crop and that production is localized inEntre Rios and Corrientes principally.Zn is a micronutrient that presented a deficiency in ricearea production of Entre Rios province and is normallysupplied in fertilization program.In this experiment, rice cultivar Guri INTA was growing inhydroponic solution with different levels of Zn (2,5; 5; 10;20 and 40 µg/L) until 35 days old. Dry matter , Zn levels,and OJIP test were performed at the end of the trial.Dry matter and Zn content increased as the Zn levelsincrement in nutrient solution.OJIP test was performed and PSII fluorescence patterndiffers between Zn levels.In comparison to Zn levels of standardized nutrient so-lution (10 µg/L), RC/CS, PIabs, Sm, N and phenomeno-logical fluxes as ABS/CS, TRo/CS, Dio/CS and ETo/CSshow data contrasting. For another hand, Fv/Fm notwas a sensitive indicator of Zn nutrition.Correlation between OJIP parameters and Zn content wereperformed and PIabs and Sm showed positive relation.