Influence of meteorological conditions on the accumulation of cyanogenic glycosides in a broomcorn (Sorghum vulgare var. technicum (Körn.))
Irena Golubinova • Plamen Marinov-Serafimov
Institute of Forage Crops – Pleven, 5800, Pleven, Bulgaria
Резюме
In comparative field experience at the Institute for Fodder Crops, Pleven has
determined the content of cyanogenic glycosides in fresh above-ground biomass
in five accessions of Sorghum vulgare var. technicum (Körn.) in four phenophases
from culture development (BBCH-12÷13, BBCH-14÷15, BBCH-47 and BBCH-
65÷69). Cyanogenic glycoside content in aboveground biomass in Sorghum vulgare var. technicum depending on the phenophase, variety and agrometeorological
conditions in the years of study.The cyanoglycoside content of the Sorghum vulgare
var. technicum in te above-ground biomass varies depending on the growth stages
of development, the accessions (genotype) and the agrometeorological conditions during the years of study.In years covered by rainfall and relatively lower average
daily air temperatures, the cyanogenic glycosides content of the technical broth
samples is higher (ranging from 27.4 to 136.59 mg/100 g dry matter in 2017).
Under dry conditions and higher average temperatures, the content of cyanogenic
glycosides is lower (2018 years is from 5.7 to 118.1 mg/100 g dry matter).
Accumulation of cyanogenic glycosides in aboveground biomass of broomcorn is
in negative correlation (r is -0.962 and -0.717) of air temperature, respectively.
