Effect of storage period and chemical treatment on sunflower parents lines seedling dry matter content

Abstract

In modern agricultural production, high quality seed which germinates quickly and evenly in different environments is the main requirement for high yields. The research was carried out in the Laboratory for Seed Testing in Institute of Field and Vegetable Crops in Novi Sad. Two cytoplasmic male sterile lines L-1 and L-2 were used for the research. Seed treatments with fungicides (benomil, metalaxyl and fludioxonil) and insecticides (tiametoxam and imidacloprid) were applied to evaluate effects of chemical treatments and storage duration on seedlings dry matter content. This treated seed was kept in a storage facility where all commercial seed is stored. The first assessment was done after the treatments and had been repeated every three months. Analysis of variance of the tested parameters showed statistically significant effects of chemical treatments and storage duration on seedling dry matter content in L-1 line. In line L-2, statistically significant effect of chemical treatment on seedling dry matter content was observed, whereas the effect of storage duration on seedlings dry matter content was highly significant. Double interactions were highly significant. .

U savremenoj poljoprivrednoj proizvodnji setva semena visokih kvaliteta, koje je sposobno da brzo i ujednačeno klija u različitim uslovima životne sredine, osnovni je preduslov za postizanje visokih prinosa. Istraživanja su obavljena u Laboratoriji za ispitivanje semena, Instituta za ratarstvo i povrtarstvo iz Novog Sada na semenu dve citoplazmatski muško sterilne forme linije majke: L-1 i L-2. Za ispitivanje uticaja hemijskog tretmana i dužine čuvanja na apsolutno suvu masu ponika seme je tretirano fungicidima: benomil, metalaksil i fludioksonil, kao i insekticidima: tiametoksam i imidakloprid i čuvano u skladištu koje se koristi za čuvanje komercijalnog semena. Ispitivanja su ponavljana svaka tri meseca, a početno ispitivanje je obavljeno neposredno nakon tretiranja semena. Analiza varijanse ispitivanih parametara ukazala je na postojanje statistički visoko značajnog uticaja hemijskog tretmana i dužine čuvanja na apsolutno suvu masu ponika linije L-1. Kod linije L-2 analiza varijanse ispitivanih parametara ukazala je na postojanje statistički značajnog uticaja hemijskog tretmana, a visoko značajnog dužine čuvanja na apsolutno suvu masu ponika. Dvojne interakcije bile su statistički visoko značajne. .