Year: 2021
Type: article
Abstract: Bread wheat is the most important cereal food grain crops in the world which can be grown under diverse agro ecology.However, its productivity has been limited due to various abiotic and biotic factors including weeds.The aim of the study was to evaluate the effects of post emergence broad leaf herbicides application on weed management and productivity of wheat.Four types of herbicides 2,4-D1lt ha -1 ,Pyroxulam 0.5lt ha -1 , Florasulam 100ml ha -1 and Florasulam + Amirpyrolid 33gm ha -1 along with weedy check that were laid out in Randomized Completely Block Design with three replications.A total of identified 12 weed species were recorded 86 % broad and 14 % grass weeds.Relative weed density also indicated that the field was highly infested by Galinsoga pulviflora Cav. but the lowest infestation of Guizotia scabra(Vis) Chiov was recorded in the field.Results also revealed that significant effects of post emergence herbicides application on some traits studied but there is no significant difference among tested herbicides on plant height, stand count, spike length, number of seeds per spike and thousand grain weights except for weedy checks.The minimum dry biomass weeds (111.00 kg ha -1 ) and the highest weed control efficiency (79.63%) were recorded from the Pyroxulam.The highest number of productive tillers(131.66m-2 ),stand count(413.00m-2 ),seeds per spike(71.58),thousand grain weight (42.00g),grain yield (3928.25 kgha -1 ) and biological yield (8693.3kg ha -1 ) were recorded from Florasulam + Aminopyrolid while the lowest values were observed from the weedy check.Therefore, it can be concluded that Florasulam + Aminopyrolid effectively managed weeds and gave maximum yield which could be recommended for the test environment.
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4249123365