Evaluation of Integrated Broomrape (Orobanche crenata) Management Packages under Effect of Varieties, Seeding Rates and Roundup Treatmet in Faba Bean under Sandy Soil Conditions

Abstract

Broomrape is a determining factor for faba bean cultivation in Egypt especially under sandy soil conditions. For this reason two field experiments were conducted in naturally infested fields with broomrape under sandy soil conditions at Ismailia Agricultural Research Station, Ismailia governorate during 2014/15 and 2015/16 winter seasons to study the effect of degree interaction between three faba bean varieties namely Giza843, Misr3 and Giza 3, two seeding rates at 30 and 60kg seed/fed. and two broomrape control treatments namely Roundup twice at 75 cc/fed. and untreated check on broomrape management and faba bean productivity. A split split plot design with three replicates was used, faba bean varieties were assigned to the main plots and seeding rates were allocated in sub plots, while weed control treatments were distributed randomly in sub sub plots. Results revealed that both faba bean varieties Misr3 and Giza843 exhibited significant decrease in numbers and weight of broomrape spikes/m2 estimated by 87.0 and 91.0% & 49.2 and 53.3 % in 2014/15 winter season and by 86.1 and 90.6% & 47.9 and 54.5 % in 2015/16 winter season, respectively as compared with the susceptible variety Giza 3. Faba bean varieties Misr3 and Giza843 significantly increased faba bean yield and its components in both seasons as compared with variety Giza 3. Seed rate of 30kg/fed. significantly decreased the number and weight of broomrape spikes/m2 by 16.8 and 11.5% in 2014/15 winter season and by 15.3 and 18.0% in 2015/16 winter season, respectively as compared to seed rate of 60kg/fed. Seed rate of 30kg/fed. significantly increased faba bean yield components in both seasons except plant height and seed yield (ardab/fed.) which significantly decreased with seed rate of 30kg/fed. in both seasons as compared to seed rate of 60kg/fed. Roundup applied twice significantly decreased the number and dry weight of broomrape spikes/m2 by 75.2 and 73.1% in the first seasons and by 72.6 and 69.8% in the second season, respectively, as compared with untreated check. Roundup applied twice significantly increased faba bean yield and its components in both seasons as compared with untreated check. The increases in seed yield (ardab/fed.) were 89.1 and 86.3% in the first and second seasons, respectively, as compared with untreated check. Analysis of the role of studied broomrape control measures and their possible integration was analyzed and correlation between broomrape infestation levels with faba bean seed yield was negative. Thus, from this study the best control package for growing faba bean in sandy soil infested with broomrape is by planting Misr 3 or Giza 843 cultivars through November with 2 sprays of Roundup at 30 kg/seeding rate in infested fields with broomrape in Ismailia area.

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

“…Concerning of the interactions of the three faba bean cultivars and the previous weed control treatments gave the highest significant reduction on the annual weeds presented associated to control broomrape as parasitic weed and reflected that to give the highest yield and its components, addition to give the highest economic net gross in both seasons. These results are in agreement with those obtained by (Fakkar et al 2016;Eid et al 2017;El-Gedwy et al 2020;El-Sherbeni et al, 2021) they reported that spraying with glyphosate followed by hand pulling significantly increased faba bean yield and its components as compared to untreated. Finally: Roundup Star herbicide was the core of the present study.…”

“…On the other hand, faba bean has little ability to compete with the annual weeds that are frequently found in faba bean fields because of its slow initial growth, which encourages the emergence and growth of annual weeds before the ground is covered by the crop canopy (Frenda et al, 2013). Eid et al, (2017) revealed that there isn't sufficient single control measure to control this parasite. So that, adopting of integral effects of combination of tolerant cultivars and rationale chemical control measures and suitable cultural practices is necessary.…”

Effect the Intercropping of Some Legume Crops and Spraying Glyphosate Herbicide on Control Orobanche crenata Forsk and Faba Bean Productivity

“…The heaviest 100-seeds of faba bean were obtained under hand pulling on Giza 716 cultivar with as average of 84.91 with Egyptian clover and 83.62g with pulling in first and second seasons, respectively. These results are in agreement with those reported by Briache et al (2014) and Eid et al (2017). In addition, the data in Table 2 showed that the interaction between intercropping system, glyphosate, pulling treatment and cultivars gave the highest reduction in the numbers of broomrape spike/m 2 and dry weight of broomrape/m 2 in both seasons.…”

“…The obtained results are in line with those found by Briache et al (2019) and El-Sherbeni et al (2021). Also, Eid et al (2017) whose found that using the best control package for growing faba bean in sand soil infested with broomrape is by planting Misr 3 or Giza 843 cultivars during November along with spray of glyphosate. Moreover, the data in Table 2 showed that the faba bean Giza 843 recorded the highest values of number of pods/ plant, pod weight/ plant.…”

“…As of now, no single control strategy is adequate to eradicate this parasite from this crop. Therefore, an effective management plan for broomrape eradication is required, which depended on using a combination of resistant cultivars, sensible chemical control techniques, and appropriate cultural practices (Eid et al, 2017). According to Kakahy et al (2012), the differences among cultivars had a substantial impact on growth and seed yield.…”