Study on trends in phenolic compounds during saffron plant growth by Folin Cio Calteau Micro method

Phenolic compounds in different organs of saffron plant specially corm has negative correlation with economical yield, but causes improvememt of qualitative characters.This research was conducted in 2008 and 2009 by sampling from saffron farms of Abrood village in TorbateHeydarieh. In this research relation of economical yield obtained with phenolic compounds of corms and rhizosphere. Ages of fields were 3, 5 and 7 years.The statistical procedure was factorial experiment as RCBD.Firs factor was times of sampling in four levels and second one was saffron organs including leaves and corms and its rhizosphere. Rates of dry matter accumulation, nitrogen rate of rhizosphere, corms and leaves and rate of phenolic compounds of rhizosphere, corms and leaves of saffeon with different replications and random samplings were assessed. By application of statistical procedures and their interaction were calculated. Results showed that effect of time of sampling was not significant on leaf phenolic compounds, but time of sampling was significant on nitrogen rate of leaves and on fresh and dry weight of leaves. Fieldm age had significant effect of economical yield and on fresh and dry weight of leaves. Relations between nitrogen, phenolic compounds and dry matter content of saffron are similar to other important crops.