Weeds control in artichoke crop | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 20, Issue 1, 2012, Pages 115-128 PDF (1.16 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.2012.462323 | ||
| Authors | ||
| Samir T. El-Deeb; Farid S. Sabra* ; Tarek F. El-Zanaty | ||
| Pesticide Chemistry Department, Faculty of Agriculture, Alexandria University, Egypt. | ||
| Abstract | ||
| Field experiments were conducted during 2007 and 2008 in two field experiments which were carried-out in the two seasons in sandy loam soil. The artichoke (Cynara scolymus L.) stumps were used as source for plantation. Ten herbicides were used as pre- emergence treatments which include: butralin, napropamide, propyzamide, prometryn. propachlor, acetochlor, oxadiargyl, metribuzin, diuron, (diuron + butralin). In addition, mulch (PE (60 micron), beside the hand weeding and unweeded (control) was also done. The most effective weed control treatments were propyzamide, diuron, (butralin + diuron), hand weeding three times and mulch. All of these three herbicides not only gave efficient control of all weeds in the two seasons but also gave the highest numbers of germinated artichoke stumps, also gave the highest yield of artichoke heads not only in quantities but also in quality since significant increase of small and medium size diameter of artichoke heads which needed for exportation by hard currency was also obtained. The number of the large size diameter was also increased by these four herbicides and thus income from artichoke heads needs in the local market will also increase. These three herbicides had considerable and useful effect on total soluble sugars content (T.S.S.), polyphenol oxidase and peroxidase activity, propyzamide gave the highest increase of total soluble sugars content in the two seasons 2007, 2008. With respect to mulch treatment which gave 100% control for all annual and perennial weeds, it caused highly significant reduction of number of germinated stumps. Generally, prometryn and propachlor caused significant decrease of the number of germinated stumps in the two seasons and reduced yield and ascorbic acid content especially in season 2007. Mulch treatment reduced significantly ascorbic acid content in season 2007 and decrease peroxidase activity in season 2008. Oxadiargyl significantly decreased polyphenols content in season 2007 as well as inhibit significantly peroxidase activity in season 2008. | ||
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