The alkaloid content of poppy (Papaver somniferum L.) varieties in Turkey by their correlation and path coefficient relationships

The research was conducted with the aim of examining alkaloids content twelve poppies (Papaver somniferum L.) cultivars registered in Turkey by correlation and path analysis relationships among capsule yield. field experiments were set up according to a randomized complete block design three replications 2017-18 2018-19 under semi-arid ecological conditions Isparta, Turkey. differences yields alkaloid contents poppy varieties statistically significant (P≤0.01) both periods, determined be between 253.4-556.2 kg ha-1 first year 332.7-659.2 second year. morphine, codeine, oripavine, thebaine, papaverine, noscapine varied 0.46-1.84%, 0.08-0.30%, 0.009-0.057%, 0.031-0.093%, 0.002-0.047% 0.017-0.094%, respectively. According analysis, morphine codeine (r=0.415*), oripavine (r=0.362*), papaverine (r=0.624**) positive while (r=0.164ns) thebaine (r=0.043ns) insignificant positive. In coefficient (p=0.631, 67.75%) had highest direct effect on followed orpavine, noscapine, Noscapine indirect via negative high effects papaverine. study, that could recommended for TMO-1 TMO-3 due higher Ofis-1 variety content.