Određivanje vigora sjemena kukuruza (Zea Mays L.) laboratorijskim metodama

Maize seed is during germination and cropping in the open under the influence of different agroecological factors, so high yields will be achieved mainly by sowing quality high vigor seeds. The aim of this research was to determine maize seed vigor by laboratory methods (mass of 1000 seeds, germination energy (GE), standard germination (SG), electrical conductivity (EC) and cold test (CT)) and at the same time examine the influence of genotype of three maize hybrides. The experiment was set up in four repetitions with 50 seeds for each method. A significant difference (P≤0.01) was found between the masses of 1000 seeds of the analyzed hybrids (314g, 307g, 252g). The energy of germination (66%, 63%, 61%), standard germination (94%, 95%, 91%) and cold test (87%, 97%, 83%) did not differ significantly. The determined values of electrical conductivity (7,96 μScm-1g-1, 7,16 μScm-1g-1, 5,23 μScm-1g-1) were significantly (P≤0.01) influenced by hybrids. The analyzed seed was of satisfactory quality or vigor, and the influence of genotype was determined in seeds tested by electrical conductivity method.Sjeme kukuruza je tijekom klijanja i nicanja na otvorenom pod utjecajem različitih agroekoloških faktora pa se visoki prinosi mogu postići prije svega sjetvom kvalitetnog sjemena visokog vigora. Cilj ovoga istraživanja bio je odrediti vigor sjemena kukuruza laboratorijskim metodama (masa 1000 sjemenki, energija klijanja, standardna klijavost, električni konduktivitet i cold test) te ujedno ispitati utjecaj genotipa tri hibrida kukuruza. Pokus je postavljen u četiri repeticije s 50 sjemenki za svaku metodu. Utvrđena je značajna (P≤0,01) razlika između masa 1000 sjemenki analiziranih hibrida (314g, 307g, 252g). Energija klijanja (66%, 63%,61%), standardna klijavost (94%, 95%, 91%) i cold test (87%, 97%, 83%) nisu se značajno (P≤0,01) razlikovali. Utvrđene vrijednosti električnog konduktiviteta (7,96 μScm-1g-1, 7,16 μScm-1g-1, 5,23 μScm-1g-1) bile su pod značajnim (P≤0,01) utjecajem hibrida. Analizirano sjeme imalo je zadovoljavajuću kvalitetu odnosno vigor, a utjecaj genotipa utvrđen je kod sjemena testiranog metodom električnog konduktiviteta