BROOMRAPE AND OTHER WEED CONTROL IN CARROT (DAUCUS CAROTA L.) | ||
| Egyptian Journal of Agricultural Research | ||
| Article 20, Volume 92, Issue 3, September 2014, Pages 1119-1136 PDF (598.42 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejar.2014.156450 | ||
| Authors | ||
| ADEL M. GHALWASH; IBRAHEM E. SOLIMAN; AZZA E. KHAFFAGY | ||
| Weed Research Central Laboratory, Agricultural Research Center, Giza, Egypt. | ||
| Abstract | ||
| Four field experiments were conducted at Sakha Agricultural Research Station, Kafer El-Sheikh Governorate in the two successive winter seasons 2011/12 and 2012/13, to study the efficacy of some weed control treatments on broomrape and annual weeds control, as well as, on carrot yield productivity and its quality. The first study, used the herbicides glyphosate twice, imazapic twice, as post– emergence herbicides and hand pulling twice to broomrape control as a parasite weed. The second study, used the herbicides pendimthalin , butralin , oxyfluorfen , metribuzin as per-emergence herbicides and hand weeding twice for controlling annual weeds. The results indicated that herbicide: imazapic twice, gave the best broomrape control and the highest increase in carrot roots yield and its quality, followed by glyphosate, and hand pulling twice of broomrape spikes, respectively. The herbicides imazapic and glyphosate decreased number of broomrape spikes/ m2, weight of broomrape spikes/m2 ,spikes length and number of capsules/ spike. The previous pre-herbicides exceeded in a great extent the unweeded treatment in controlling annual broad-leaved weeds and annual grassy weeds. The maximum reduction values of dry weight of broad-leaved, grassy and total annual weeds were obtained by using oxyfluorfen, pendimethalin, metribuzin , butralin and hand weeding twice in two seasons, respectively, compared with the control treatment. The herbicides oxyfluorfen, imazapic, pendimethalin, metribuzin, glyphosate and butralin gave the highest increases in yield and its components in both seasons, compared with the control treatment. All tested herbicides gave the highest significant increase in the quality characters in carrot roots, followed by hand pulling of broomrape or hand weeding of the annual weeds. Also, the highest net return was obtained by herbicides used and hand weeding twice, Thus, these herbicides treatments can replace hand weeding for the control of weeds and broomrape in carrot crop. | ||
| Keywords | ||
| Orobanche; Carrot; Broomrape; Weed Control | ||
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