Evaluation of two trap crops (Sesame and Flax) on Broomrape damage reduction in different of commercial Tomato varieties

Subject Areas : Journal of Plant Ecophysiology

M. Rafyee ¹ , مهدی Madandoust ² , F. Sadeghi ³

1 - دانش آموخته کارشناسی ارشد دانشگاه آزاد اسلامی واحد شیراز
2 - استادیار دانشگاه آزاد اسلامی واحد فسا
3 - استادیار دانشگاه آزاد اسلامی واحد شیراز

Received: 2014-09-24 Accepted : 2014-09-24 Published : 2014-09-01

Keywords: root parasite, host plant, broomrape, integrated weed management,

Abstract :

The various broomrape (Orobanche spp.) species are obligatory chlorophyll-lacking root parasites which cause severe damage to vegetables and other yield crops. Therefore, the effects of trap crops on Broomrape damage in different cultivars of tomato was studied using factorial  analysis with a randomized complete design (RCD) and four replicates, at Islamic Azad University of Shiraz. The first factor was tomato cultivars (Falat CH, Petoldoli and Fk) and the second factor was trap crops (Sesame, Flax & control). Results indicated significant differences among different cultivars of tomato on the traits of tomato and broomrape. The results showed that using trap crops reduced 62.75 and 64.27 percentage of dry weight broomrape nods and aerial stems, respectively. The characteristics of tomato and broomrape were also affected by trap crops. The Most tolerant cultivar against broomrape was Falat CH, which showed the lowest dry weight broomrape nods (0.21 g) and aerial stems (0.20 g). Flax and sesame trap crops inhibited the broomrape growth, so the maximum tomato yield and minimum dry weight of broomrape nods was detected under these treatments. The highest dry weight of broomrape nods and aerial stems was found in control treatment whereas tomato yield was the lowest in this treatment.