PHYSIOLOGICAL AND HEALTH QUALITY OF DAMAGED SORGHUM SEEDS

DEA ALÉCIA MARTINS NETTO, NICÉSIO FILADELFO JANSEN DE ALMEIDA PINTO,ANTÔNIO CARLOS DE OLIVEIRA, CLEVERSON SILVEIRA BORBA E RAMIRO VILELA DE ANDRADE

 

The objective of this research was to evaluate the effects of different degrees of mechanical damage on physiological quality and fungi occurence in damaged sorghum (Sorghum bicolor (L.) Moench) seeds. Ten seed lots were stored for 12 months in: A1- standard stock and seeds without fungicide; A2- standard stock and seeds with fungicide; A3- cold chamber and seeds without fungicide; A4- cold chamber and seeds with fungicide. The seeds were treated with the mixture of fungicide Carboxin
+ Thiram (75.0 + 75.0g/100kg of seeds). The sanity was determinated by the method of filter paper withfreezer, in four replications with 100 seeds per lot and completly randomized design. The lots were submitted to germination, accelerated aging test and cold test. Ten fungi kinds were detected in seed lots. The fungi were totaly controlled in seeds with carboxin + thiram fungicide, independently of its damaged degrees and its environment of storage. Independently of use of fungicide, there was decrease of 20% in germination in seeds stored at standard stock and 14% in germination in seeds stored at cold chamber. There was no association of different mechanical damaged degrees with fungi occurrence and the physiological quality of seeds was not affected with the microrganisms presence.



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