T. Przepiorkowski et Sf. Gorski, INFLUENCE OF RYE (SECALE-CEREALE) PLANT RESIDUES ON GERMINATION AND GROWTH OF 3 TRIAZINE-RESISTANT AND SUSCEPTIBLE WEEDS, Weed technology, 8(4), 1994, pp. 744-747
Greenhouse and laboratory studies were conducted to evaluate the effec
ts of rye residues on germination and growth of three triazine-resista
nt weed species, barnyardgrass, willowherb, and horseweed. Soil contai
ning rye roots was used to determine rye residue influence on seed ger
mination. Willowherb and horseweed germination was inhibited up to 50%
with the highest rate of rye, but there was no inhibition of barnyard
grass germination. Aqueous extracts of rye shoot tissue inhibited incu
bator germination of horseweed and willowherb, but did not significant
ly influence barnyardgrass germination. Although there were no germina
tion differences between the susceptible and resistant biotypes, both
were totally inhibited when a 5% w/v solution was used. Growth inhibit
ion of the selected weeds was evaluated using rye root residues in soi
l. All combinations of biotypes, species, and rye seeding rates showed
significant growth inhibition.