The effect of silkworm residues and nitroxin on Some quantitative and qualitative Characteristics of German chamomile )Matricaria chamomilla)

In order to study the effects of silkworm residues and nitroxin on qualitative and quantitative characteristics of German chamomile )Matricaria chamomilla), a pot experiment was conducted as a factorial experiment in a completely randomized design with four replications in greenhouse of Faculty of Agriculture and Natural Resources of Gonbad Kavous University in growing season: 2013-2014. The first factor included fertilizer of silkworm residues in six levels (0, 2.5%, 5%, 7.5%, 10% and 20%) and nitroxin biofertilizer in two levels (inoculated with nitroxin and non inoculated) as second factor. The results showed that the highest biological yield, numbers of flowers and flowers weights in a pot were obtained in combination of 7.5% silkworm residues with nitroxin. At lower levels of silkworm residues, the amount of phenol and catalase enzymes increased. While high levels of silkworm residues (over 10%) increased the flower essence and chamazulene percent. In clousion, using silkworm residues with nitroxin increased quantitative and qualitative yield in German chamomile. Therefore, it is suggested to use a combination of 7.5% of silkworm residues and nitroxin for flower production. But combination of 20% of silkworm residues and nitroxin is suggested for flower essence.