Mechanical scarification technique breaks seed coat-mediated dormancy in wild oat (Avena fatua)

Wild oat is a herbicide resistance-prone global weed species that causes significant economic losses in dryland and horticultural agriculture. As a result, there has been a significant research effort in controlling this species.

Download PDF

Selection for low dormancy in annual ryegrass (Lolium rigidum) seeds results in high constitutive expression of a glucose-responsive a-amylase isoform

α-Amylase in grass caryopses (seeds) is usually expressed upon commencement of germination and is rarely seen in dry, mature seeds. A heat-stable α-amylase activity was unexpectedly selected for expression in dry annual ryegrass (Lolium rigidum) seeds during targeted selection for low primary dormancy.

Download PDF

Selection for a low or high primary dormancy in Lolium Rigidum Gaud seeds results in constitutive differences in stress protein expression and peroxidase activity

Seed dormancy in wild Lolium rigidum Gaud (annual ryegrass) populations is highly variable and not well characterized at the biochemical level.

Download PDF

Dark-mediated dormancy release in stratified Lolium rigidum seeds is asscoiated with higher activites of cell wall modifying enzymes and an apparent increase in gibberellin sensitivity

Dormancy release in freshly matured, imbibed annual ryegrass (Lolium rigidum) seeds is inhibited by light and involves a decrease in seed sensitivity to abscisic acid. Other processes involved in dormancy release in the dark were investigated by measuring seed storage compound mobilisation and the activity of cell wall-degrading enzymes.

Download PDF
Get access to short and sharp insights into the world of more crop, fewer weeds with AHRI Insight.
Subscribe Now