Germination behaviour of seeds from herbicide treated plants of Chenopodium album L.

Anais da Academia Brasileira de Ciências

Asif Tanveer¹  Muhammad A. Nadeem¹  Asghar Ali¹  Muhammad Tahir¹  Muhammad S.i. Zamir¹ 

关键词: herbicides;    sub-lethal doses;    onion;    leek;    germination;    herbicidas;    doses sub-letais;    cebola;    alho-porró;    germinação;   

DOI  :  10.1590/S0001-37652009000400022

来源: SciELO

【 摘 要 】

The carry-over effect of sub-lethal herbicides was investigated on the germination of seeds collected from surviving Chenopodium album plants, which had received 1/8, 1/8 twice, 1/8 three times, 1/4, 1/2, 1/1 doses of either pre-emergence ioxynil or post-emergence bentazone in a previous onion (Allium cepa) crop. Seeds were also collected from surviving C. album plants, which had received 1/4, 1/2, 1/1 of either pre-emergence pendimethalin, propachlor and linuron, or 1/8, 1/8 twice, 1/8 three times, 1/4, 1/2, 1/1 of post-emergence ioxynil or linuron in a previous leek (Allium porrum) crop. Seeds of surviving plants were collected and tested for germination at temperature of 5, 10, 15, 20 and 25°C. The effect of different temperatures on the total number of germinated seeds was significant. Germination was minimum at low temperatures (5°C or 10°C). Herbicides did not show any effect on germination of C. album and resulted in the same final germination percentage as seeds collected from the unsprayed control plots.

【 授权许可】

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