Sjemenarstvo, Vol. 24 No. 1, 2007.
Izvorni znanstveni članak
ALFALFA (Medicago sativa L.) SEED SCARIFICATION BY ACID
Marina Palfi
Sažetak
In alfalfa seed there are always in higher or lower percentage some hard seeds. Seed coat of hard seed unable enough water and air uptake causing difficulties in germination. Reduce the percentage of hard seed is a possible by various scarification methods.
In the aim to determinate influence of seed scarification by acid on hard seeds percentage reducing and seed quality sustainability laboratory research was done.
Researches were done on alfalfa “OS-11” variety seed which was treated by 96%, 86% and 76% H2SO4 in 4, 5, 6 and 10 minute exposition time.
The best quality of alfalfa seed immediately after the treatment was received by 96% H2SO4 scarification in duration 5 minutes. Scarification improved germination energy from 61,25% to 82,00% and germination without hard seeds from 62,75% to 82,00%. Percentage of hard seed was reduced from 19,25% to 3,8%, as well as ungerminated seeds from 13,75% to 9,0%. Share of abnormally developed germs was slightly increased. Six month after scarification stored alfalfa seed shows out further lower hard seed percentage, but ungerminated seed was increased to 88,00% becoming unmarketable.
Ključne riječi
alfalfa; scarification; H2SO4; hard seed
Hrčak ID:
16999
URI
Datum izdavanja:
1.8.2007.
Posjeta: 3.138 *