عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In order to study the effect of environment temperature and GR60 concentration on seed germination and growth of Orobanche aegyptiaca and Orobanche cernua, two experiments were conducted under controlled conditions in Weed Research department of Iranian Research Institute of Plant Protection in 2008. The first experiment was established as a completely randomized design with factorial arrangement of treatments and five replications. The first factor was GR60 concentration (zero, one, two and five ppm), the second factor was broomrape species (O. aegyptiaca and O. cernua), and the third factor was temperature (10, 20 and 30?C). The second experiment was also conducted with the same statistical design and species, temperature at three levels (15, 20 and 30?C) and host plants at two levels (tomato and tobacco). Results indicated that GR60 stimulated seed germination of both broomrape species. Broomrape germination increased up to 20?C. O. cernua needed less GR60 for maximum germination compared to that of O. aegyptiaca. Stem weight of broomrape species increased by moderate increase in temperature.
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