Evaluation of some herbicides in clusterbean and their persistence

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dc.contributor.advisorRinwa, R.S.
dc.contributor.authorKuldeep Singh
dc.date.accessioned2016-11-11T14:24:51Z
dc.date.available2016-11-11T14:24:51Z
dc.date.issued2010
dc.description.abstractAn experiment was carried out under field and lab. /Screen house conditions at CCS HAU Hisar. In the field, efficiency of different weed control treatments in clusterbean during kharif season of 2009-10 and their carryover effect on mustard crop was analyzed. Among different rates of imazethapyr, pendimethalin, trifluralin, pyrithiobac-sod and 2 HW weedings at 15 & 30 DAS, imazethapyr 80, 100 g/ha PRE and 100 g/ha 20 DAS resulted in significantly higher yield, but imazethapyr 100 g/ha PRE and POST had residue problems for mustard crop. So, imazethapyr 80 g/ha PRE may be used without much residue problems in the next cropping season for mustard. Also pendimethalin/trifluralin 1.0 kg/ha PRE/PPI followed by 1 HW 20 DAS and 2 HW at 15 & 30 DAS were found equally effective in controlling weeds and yield optimization of clusterbean. In lab/screen house study, persistence of trifluralin and imazethapyr affected by different temperature and moisture regime, using bioassay technique was quantified. Bioassay plants for trifluralin and imazethapyr were oat and mustard, respectively. Soils treated with above herbicides at different rates were incubated to 15, 25, 35 and 45OC temperature regimes in incubator and moisture incubations at 50%, 75% FC and FC at room temperature for one month. Persistence of herbicides affected by temperature and moisture regimes at different herbicide rates was measured by comparing the germination, shoot and root growth, fresh and dry weight to control treatment, at different intervals. Among given regimes of temperature and moisture, trifluralin degradation was maximum at 25OC and FC whereas, maximum degradation of imazethapyr was recorded between 35OC and 45OC and at 75 % FC.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/85140
dc.language.isoenen_US
dc.publisherCCSHAUen_US
dc.subAgronomy
dc.subjectPoultry equipment, Herbicides, Weeds, Crops, Planting, Mustard, Drying, Fruits, Vegetative propagation, Yieldsen_US
dc.these.typeM.Sc
dc.titleEvaluation of some herbicides in clusterbean and their persistenceen_US
dc.typeThesisen_US
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