Effect of growth regulators Naphthalene acid and Salicylic and Humic acid in growth and produce nigellon and thymoquinon of Nigella sativa L.

Abstract

An experiment was carried out during the agricultural season of 2010-2011 in college of Science /AL-Qadisiya University, study the effect of growth regulators Nephthalin acetic acid and Salicylic acid and humic acid on growth and production of the active ingredient of Black seed (Nigella sativa L.) . The vegetative parameters measured were included ; plant height , stem diameter , number of branches , leaves number, dry weigh of shoot and roots , Also active substances content nigelon and thymoqunon in seeds . Results were as follow using on Nephthalin acetic acid and Salicylic and Humic acid treatments caused an increase in all vegetative parameters that studied , and the active substances concentration nigelon increase in 20 mg/L SA with 2.5 ml/L Humic acid and concentration thymomiquenon increase with 750 mg/L NAA with 2.5 ml/L Humic acid.