Effect of planting date and concentrations of basegran herbicide on growth and yield of faba bean and the accompanying weeds

Abstract EN

The experiment was carried out during Agricultural season 2019-2020, Field crops Department research station / University of Mosul, planting date (7 November, 7 December, and 7 January) and four doses of Basgran herbicide (control, 187.5, 375, 750 ml.

h-1).

The experiment was applied according factorial experiments (split plots) using the Randomize complete Block Design ( planting date at the main plot and the herbicide doses at the sub plots.

Using the Spanish variety, the herbicide was sprayed in the last week of February, Weeds samples were taken at mid of April, while the crop sample taken at the first week of May.

The data was analyzed according factorial experiment (split plot) using Randomize Complete Block Design, Duncan test was using to compared among the treatments.

Planting dates significantly affected the number of narrow weeds, the number of narrow weeds decreased at the second and third dates compared with first date by 28.1 and 30.65% respectively.

Planting dates are different at their effect on Number of broad- leaves weeds, planting date 7 January superior in decrease number of broad-leaves weeds compared with second and third planting date by ( 74, 92.44 ).

Third planting date are superior significantly compared with the first planting date at decrease the dry weight of broad leaves weeds by 10.19 % , while non-significant different compare with second planting date.

non-significant difference among the planting dates at effect on dry weight of broad leave weeds.

The first planting date superior at most the traits of growth and yield of crop, high plant (85.8167 cm), number of pods (7.80), number of seeds.

pod-1 ( 5.31 seed.

pod-1), weight of 100 seed (130.43 gram).

and (410.58) g.

m-2.

All herbicide doses effect in decrease the narrow and broad leaves weeds, dose 750 ml.

h-1 superior at decrease the narrow leave weeds and their dry weight ( 17.89 ) and ( 53.42) g.

m-2, the dose ( 375 and 750 ml.

h-1) superior on the dose 187.5 ml.

h-1 significantly at decrease the number of broad leaves weed ( 4.44, 4.30 plant.

m-2 ).

All traits of growth and yield of Vicia faba L.

are significant superior at the treated with doses 375 ml.

h-1 of Basegran herbicide except plant high which was high value at control treatment, (8.91) pot.

m-2 of number of pots, (7.13 seed.

pot-1) of number of seed.

pot, (146.80) g.

m-2 of weight of 100 seed, (490.42 gram.

m-2) of seeds yield.

Interaction between planting date and herbicide doses taken significant results at weed control whether broad leaves weeds and the dry weight, the doses of herbicide (375 and 750 ml.

h-1 with third planting date (7 January) superior at decrease the traits of weeds, while the dose 375 ml.

h-1 with the date 7/11 and 7 /12 of most traits of growth and yield.