University of Khartoum

Preemergence Use Of Metribuzin in Controlling Weed in Potato ( Solanum Tuberosum L .)

Preemergence Use Of Metribuzin in Controlling Weed in Potato ( Solanum Tuberosum L .)

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dc.contributor.advisor Salah El Tom El Amin en_US
dc.contributor.author Mohemed, Nasr El Din Mohemed Ahmed
dc.date.accessioned 2015-05-18T06:35:25Z
dc.date.available 2015-05-18T06:35:25Z
dc.date.issued 2015-05-18
dc.date.submitted 2015-05-18
dc.identifier.uri http://khartoumspace.uofk.edu/handle/123456789/10976
dc.description March 2005 en_US
dc.description 81page
dc.description.abstract This study was conducted at The River Nile State ( northern Sudan ) ; Hagar Elassal Province, 150 km, north of Khartoum at Elbsabeer town among the fields of traditional, commercial potato producers , during the growing seasons 2000/2001 and 2001/2002 . The study was indented to evaluate the efficacy of two pre-emergence soil-applied herbicides Metribuzin SC480 at dose of 0.7 kg a.i / fed, 0.5 kg a.i / fed and 0.35 kg a.i / fed and Metribuzin WP 70% at dose of 300 g product/ feddan on weed control , to evaluate their effect on growth and yield of potato ( Solanum tuberosuim. L . ) . Results of this investigation showed a significant increase in number of leaves per plant and plant height (cm ) in both seasons due to the use of herbicides and hand-weeding treatments as compared to the control . Number of branches per potato plant was significantly increased by the use of Metribuzin dose ( 0.7) kg a.i / fed and by hand-weeding as compared to control . Application of the two herbicides at their different rates and hand-weeding treatments resulted in a great increase in number of branches, shoot fresh weight and oven-dry weight per potato plant (g) compared to control in both two seasons . The different rates of herbicides MetribuzinSC480 had significantly increased yield of potato plant ( ton / feddan ) in both seasons as compared to control and hand-weeded treatment .The two herbicides used gave good control of annual weeds (94.68%ــــ 71.45% ) with (99%--84.22 ) control of broad-leaved weeds and (98.57 ــــ 64.25% ) control of graminaceous weeds . Some annual weeds like Xanthium brasilicum vell.; Ipomoea cordofana choisy , Merremia emerginata (Burm.f.) Hallier f., Datura stramonium L. and Datura innoxia ; .) which have shown some tolerance to other herbicides like pendimethalin have been efficiently controlled while the perennials weeds like Cyperus rotundrus L . and cynodon dactylon L). are not affected by the used herbicides though they show leaf yellowing . en_US
dc.description.sponsorship UOFK en_US
dc.publisher UOFK en_US
dc.subject Potato en_US
dc.title Preemergence Use Of Metribuzin in Controlling Weed in Potato ( Solanum Tuberosum L .) en_US
dc.type Thesis en_US
dc.Degree M.Sc en_US
dc.Faculty Agriculture en_US
dc.contributor.faculty Crop Protection en_US

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