engleski

Influence of different warehouse types on the quality of maize seed

Adequate storage of maize hybrid seed is very important for preserving required quality of seed material. Inadequate storage conditions in warehouse like changes in temperature and relative humidity can induce depletion in seed viability. The objectives of these investigations were to determine changes in quality of maize seed over the three years storage, and in two genetically different hybrids, OSSK-596 and OSSK-602. The experiment was set up in two warehouse types (concrete- made – newer type, and brick-made – older type) at the Agricultural Institute Osijek. Both hybrids were tested to untreated seed, and seed treated in three variants: 1.fungicide Vitavax 200 FF ; 2.fungicide Maxim 035 XL ; and 3.fungicide Vitavax 200 FF + insecticide Gaucho 600 FS. Significant loss in quality of maize seed was observed during three-year-storage in both types of warehouse. The highest quality loss was determined with the seed varieties of both hybrids treated by the suspension of fungicide and insecticide (Vitavax 200 FF + Gaucho 600 FS). On the basis of the obtained results, the seed treated by the suspension of fungicide and insecticide was found to be inadequate for storage longer than 12 months. Such seed should be sieved in the year of treatment.

maize seed ; hybrids ; warehouse type ; storage conditions ; storing period ; seed quality

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