Effect of spring wheat (Triticum aestivum L.) treatment with brassinosteroids on the content of cadmium and lead in plant aerial biomass and grain

Plant, Soil and Environment

Hejtmánková A.¹  Kroutil M.¹  Lachman J.:¹ 

关键词: spring wheat;    brassinosteroids;    copper;    cadmium;    lead;    zinc;   

DOI  :  

学科分类：农业科学（综合）

来源: Czech Academy of Agricultural Sciences

【 摘 要 】

Spring wheat var. Vánek was cultivated in pots in a soil naturally contaminated with heavy metals. Experimental plants were treated with three different types of brassinosteroids (BRs; 24-epibrassinolide, 24-epicastasterone and 4154) during two different growth stages 29�?31 DC (off shooting) and 59�?60 DC (beginning of anthesis). Content of heavy metals (Cu, Cd, Pb and Zn) was determined using AAS method in the plant growth stages 47�?49 DC (visible awns), 73�?75 DC (30�?50% of final grain size) and 90�?92 DC (full ripeness). At the stages 47�?49 DC and 73�?75 DC, the content of the heavy metals was determined in the biomass of whole plants, while at the stage 90�?92 DC it was determined separately in straw and grains. After the treatment of plants with BRs a decrease in heavy metals content was observed in the growth stage 73�?75 DC (i.e. during the period when the plants are harvested for ensilage purposes. Likewise, a decrease of lead content in the grains by 70�?74% in the plants treated at both stages 29�?31 DC and 59�?60 DC and by 48�?70% in the plants of the third group (plants treated at stage 59�?60 DC) was determined as compared with the untreated plants.

【 授权许可】

Unknown