Before revision: Fingernail impression held89 Fully ripe: grain hard, difficult to divide with thumbnail9: Senescence92 Over-ripe: grain very hard, cannot be dented by thumbnail93 Grains loosening in day-time97 Plant dead and collapsing99 Harvested product 1 A leaf is unfolded when its ligule is visible or the tip of the next leaf is visible 2 Tillering or stem elongation may occur earlier than stage 13; in this case continue with stages 21 3 If stem elongation begins before the end of tillering continue with stage 30 Feekes scale The Feekes scale is a system used by agronomists to identify the growth and development of cereal crops .
After revision: Fingernail impression held89 Fully ripe: grain hard, difficult to divide with thumbnail9: Senescence92 Over-ripe: grain very hard, cannot be dented by thumbnail93 Grains loosening in day-time97 Plant dead and collapsing99 Harvested product 1 A leaf is unfolded when its ligule is visible or the tip of the next leaf is visible 2 Tillering or stem elongation may occur earlier than stage 13; in this case continue with stages 21 3 If stem elongation begins before the end of tillering continue with stage 30 Feekes scale The Feekes scale is a system to identify the growth and development of cereal crops .