The study of allelopathic effect of Eucalyptus camaldulensis on germination and seedling growth of wheat (Triticum aestivum L.)

Abstract

In this study allelophatic effects of metanolus extract of Eucalyptus camaldulonsis on some morphological and physiological characteristics of wheat (Triticum aestivum L.) were investigated. Six metanolous extract levels (0, 1.5, 3, 6, 9 and 18 g/lit) were used in completely randomized design with 3 replication in growth chamber of research institute of forest and rangelans of Iran. Radicule length, plumule length, vigour index, germination percentage, germination speed, germination index, wet and dry weight of seedling, prolin and soluble sugar in ridicule, and plumule of seedling were estimated. Results showed that for all parameters, allelopathic effects of eucalyptus extraction between treatments were significanted. The increase of extract concentration decreased germination percentage, radicule and plumule length, wet and dry weight and increased prolin and soluble sugar, significantly. Results of negative effects of metanolus extract of Eucalyptus leaves on germination and seedling growth of wheat recommends not usage of this extract for controlling of weeds in wheat farms.

Keywords

• eucalyptus
• porolin
• allelopathy
• vigour index
• soluble sugar