Effect of weed control on performance of some faba bean cultivars in a broomrape naturally infested soil

Abstract

A field trial was executed on faba bean productivity under naturally infested soils with annual weeds and broomrape ( Orobanche crenata Forsk.), at Sakha Agricultural Research Station, Agricultural Research Centre, Egypt, (31° 07' N latitude, 30° 05' E longitude) during 2020/21 and 2021/22 winter seasons. The aim of this study was to investigate the effect of three faba bean cultivars (Giza 843, Misr 3 and Giza 716) and eight weed control treatments on growth, yield components of faba beans as well as its associated weeds. A split plot design was used with four replicates. The main finding revealed that the studied two factors were dependent. The highest significant reduction percentage on controlling weeds included broomrape was obtained by using either of cultivar Misr 3 or Giza 843 with, Stomp extra 1 L fed -1 mixed with Round up Star at 100 cm 3 fed -1 applied as post-sowing directly, followed by Round up Star at 75 cm 3 fed -1 (twice), at flowering stage and after 21 days, on controlling broomrape and on increasing faba bean yield and its components. The previous respective interactions gave the highest significant increasing values of faba bean yield and its components. Furthermore, these treatments gave the highest values of economic measures.