Effects of artificial accelerated aging on germination behaviour of thecosmopolitan weed Chenopodium album: implications for weed control
2003
El-Keblawy, A.,UAE Univ., Al-Ain (United Arab Emirates)Biology Dept.)
Accelerated aging is a physical stress commonly used in order to obtaininformation on seed vigor within a short period of time. The present studyaimed to assess the effects of temperature and duration of accelerated agingon the germination behaviour, expressed as final germination percentage andgermination rate, of seeds of the cosmopolitan weed Chenopodium album. Seedswere aged by incubating them inside sealed boxes with distilled water at 45,55 and 65 degree C for periods of time ranged between one and six days.Seed germination was tested at three incubators. Accelerated agingsignificantly reduced both final germination percentages and germinationspeed. The overall germination after one, two, three and six days of agingdecreased by 46%, 88.7%, 85% and 83%, respectively, from that of unaged seeds.Germination was completely inhibited after aging of the seeds at 65 degree C.The results discussed in the light of employing accelerated aging technique inobtaining information about the most effective temperature and duration thatare required to deteriorate seeds of weeds during the soil solarization.
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