To study interferential effect of lamb's-quarters (Chenopodium album L.) on marigold (Calendula officinalis) yield and lamb's-quarters seed production two factorial field experiments were conducted in Tabriz, Iran, during 2010-2011. Treatments were densities of lamb's-quarters (0, 2, 4, 6 and 8 plants per meter row) and relative times of its emergence (0, 10, 20, 30 and 40 days after marigold emergence). Marigold could tolerate4 lamb's-quarters plants per meter row without any significant yield reduction, when it emerges 40 days after that of marigold. A suitable fit to model of Cousens et al. was obtained for all marigold flower yield data sets at interference with lamb's-quarters. Results also indicate that controlling lamb's-quarters early in the season may reduce its seed production capacity.
Mirshekari, B. (2013). Marigold (Calendula officinalis) yield as affected by lamb's-quarters (Chenopodium album) competition. International Journal of Plant Production, 7(4), 659-664. doi: 10.22069/ijpp.2013.1262
MLA
B. Mirshekari. "Marigold (Calendula officinalis) yield as affected by lamb's-quarters (Chenopodium album) competition", International Journal of Plant Production, 7, 4, 2013, 659-664. doi: 10.22069/ijpp.2013.1262
HARVARD
Mirshekari, B. (2013). 'Marigold (Calendula officinalis) yield as affected by lamb's-quarters (Chenopodium album) competition', International Journal of Plant Production, 7(4), pp. 659-664. doi: 10.22069/ijpp.2013.1262
VANCOUVER
Mirshekari, B. Marigold (Calendula officinalis) yield as affected by lamb's-quarters (Chenopodium album) competition. International Journal of Plant Production, 2013; 7(4): 659-664. doi: 10.22069/ijpp.2013.1262
)