The allelopatic effect of extract of different organ of wheat cultivars (Triticum aestivum L.( on germination and growth characteristics of rye (Secale cereal L.)

Subject Areas : Journal of Plant Ecophysiology

M.  Negahdari ¹ (مرکز آموزش جهاد کشاورزی فارس، شیراز، ایران)
R.  Hosseini Monfared ² (گروه زراعت و اصلاح نباتات، واحد ارسنجان، دانشگاه ازاد اسلامی، ارسنجان، ایران)
M.  Safarpoor ³ (مرکز تحقیقات کشاورزی و منابع طبیعی فارس، شیراز، ایران)
M.  Sharifi ⁴ (مرکز تحقیقات کشاورزی و منابع طبیعی فارس، شیراز، ایران)
S.  Paydar ⁵ (مرکز تحقیقات کشاورزی و منابع طبیعی فارس، شیراز، ایران)
N.  Karimi ⁶ (گروه زراعت و اصلاح نباتات، واحد ارسنجان، دانشگاه ازاد اسلامی، ارسنجان، ایران)

Received: 2015-09-26 Accepted : 2015-09-26 Published : 2015-09-01

Keywords: germination, Allelopathic, rye, water extraction, weed management,

Abstract :

In order to evaluation of extract in different organs of wheat cultivars (Triticum aestivum L.) on growth characteristics of rye (Secale cereal. L), an experiment was conducted in Islamic Azad University of Arsenjan using twenty wheat cultivars in 2010. The research was conducted in a factorial experiment on the basis of randomized complete design with three replications. Extracts from the three organs (leaves, roots and stems) of twenty wheat varieties separately in four different concentrations (0, 25, 50 and 100%) applied on rye and germination percentage, radicle and hypocotyle length, radicle and hypocotyle fresh weight. The results showed that root extract had lower potential in germination inhabitation compared with stem and leaf. With increasing extract concentration reduced germination percentage, radicle and hypocotyle length, radicle and hypocotyle fresh weight, as 100% concentration were not observed on germination and growth in rye. Also inhibitory among the different parts of wheat extract was different and leaf and stem had higher allelopthic effects compared with root. Considerable variation was observed in inhibitory of wheat cultivars. The most inhabitation between cultivars observed in Sabalan and Moghan1, 2 and the lowest inhabitation observed in Kavir cultivar. It seems in regions where the problem of wheat field is rye weed, Sabalan and Moghan cultivar could be recommended to control the weed.