Boron tolerance parameters in wheat seedlings

Abstract

The aim of the study was to analyze the variability of dry weight and boron content in seedlings of 14 NS wheat cultivars treated with boric acid. The level of boron tolerance of studied cultivars was known from previous research. Significant differences between genotypes in groups (susceptible, medium tolerant, tolerant) were found regarding both analyzed traits and they are probably caused by different boron tolerance mechanisms. Rang of treated genotypes with respect to root growth reduction corresponded well with their rang with respect to dry weight reduction. These results suggest that in further research it might be sufficient to analyze one of those parameters.

Ispitana je varijabilnost mase suvih klijanaca i sadržaja bora kod 14 NS sorti pšenice tretiranih bornom kiselinim kod kojih je poznat stepen tolerancije na suvišak bora. Između genotipova unutar grupa (osetljivi, srednje tolerantni i tolerantni) su utvrđene značajne razlike u pogledu analiziranih svojstava, što upućuje na različite mehanizme tolerancije na bor. Saglasnost ranga tretiranih genotipova u pogledu redukcije rasta korena i mase suvih klijanaca navodi na zaključak da bi u daljim istraživanjima bilo dovoljno analizirati ili rast korena ili masu suvih klijanaca.