Journal article

Publication year: 2013

Pages: 1295-1300

Journal: International Journal of Agriculture and Biology

Volume number: 15

Issue number: 6

ISSN: 1560-8530

Publisher: Smith and Franklin Academic Publishing

Abstract: 
Artichoke leaves contain a high percentage of polyphenols that are used for certain medicinal purposes. Due to wide row spaces and slow plant development during early growth stages, there is a high risk of weed infestation in field cultivation of artichoke. Post emergence herbicides used for weed control may also affect the non target crop by a temporary or permanent stress. Abiotic stress in crops may be detected by certain parameters like measurement of chlorophyll fluorescence after the application of herbicides. A field experiment was carried out at the research station Giessen, Germany during 2008 to study the possibility of herbicide stress detection in artichoke by measuring chlorophyll fluorescence. Eight post-emergence herbicides i.e., Phenmedipham, Pyridate, Quizalofop-P, Prosulfocarb, Carfentrazone, Rimsulfuron, Aclonifen and Clomazone were used in comparison with a mechanically weeded control. Fluorescence yield of light and dark adapted leaves showed that Clomazone affected chlorophyll fluorescence at one day after herbicide application and the effect went on increasing followed by that of Aclonifen and Rimsulfuron (appeared one week after herbicide application). These adverse effects started decreasing from three weeks after application of herbicides and were almost normal (compared with that of control) at four weeks after herbicide application during first growth phase, whereas these showed no recovery during second growth phase. Experimental study led to the conclusion that different post-emergence herbicides, depending on their mode of action, affect leaf yield of artichoke and chlorophyll fluorescence measurement can be used to detect the herbicide stress in artichoke leaves under field conditions. It can also be concluded that artichoke can recover this stress along with the development stages depending on the severity of herbicide stress and prevailing environmental conditions. (C) 2013 Friends Science Publishers

Harvard Citation style: Ali, S. and Honermeier, B. (2013) Can Herbicide Stress in Artichoke (Cynara cardunculus) be Detected by Chlorophyll Fluorescence?, International Journal of Agriculture and Biology, 15(6), pp. 1295-1300

APA Citation style: Ali, S., & Honermeier, B. (2013). Can Herbicide Stress in Artichoke (Cynara cardunculus) be Detected by Chlorophyll Fluorescence?. International Journal of Agriculture and Biology. 15(6), 1295-1300.