title: Depolymerized carrageenan ameliorates growth, physiological attributes, essential oil yield and active constituents of Foeniculum vulgare Mill.
abstract: Irradiated carrageenan (IC) elicits an array of plant defense responses and biological activities in plants. An experiment was carried out in the naturally illuminated conditions of net house in order to assess the effects of foliar spray of IC on agricultural performance of fennel (Foeniculum vulgare Mill.), which is a high-value essential oil bearing medicinal crop used in pharmaceutical, food and cosmetic industries. There were applied four IC concentrations (40, 60, 80 and 100 mg L(-1)) as foliar sprays. Application of IC significantly improved the growth attributes, physiological and biochemical parameters, essential oil yield and the contents of main components of essential oil of fennel. IC applied at 80 mg L(-1) enhanced these parameters maximally. Unirradiated carrageenan and deionized water had no effect on the attributes studied. Moreover, GLC analysis revealed a significant increase in the components of essential oil, viz. fenchone (4.48-7.82%) and anethole (78.38-86.08%) compared to the control.
authors.affiliation: Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India.
authors.forename: Nadeem
authors.initials: N
authors.lastname: Hashmi
authors.affiliation: Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India.
authors.forename: M Masroor A
authors.initials: MM
authors.lastname: Khan
authors.affiliation: Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India.
authors.lastname: Moinuddin
authors.affiliation: Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India.
authors.forename: Mohd
authors.initials: M
authors.lastname: Idrees
authors.affiliation: Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India.
authors.forename: Zeba H
authors.initials: ZH
authors.lastname: Khan
authors.affiliation: Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India.
authors.forename: Akbar
authors.initials: A
authors.lastname: Ali
authors.affiliation: ISOMED, Radiation Technology Development Section, Radio Chemistry and Isotope Group, BARC, Mumbai 400085, India.
authors.forename: Lalit
authors.initials: L
authors.lastname: Varshney
mesh_terms: D002351:Carrageenan / Q000737:chemistry* / Q000494:pharmacology; D030001:Foeniculum / Q000187:drug effects / Q000254:growth & development*; D009822:Oils, Volatile / Q000302:isolation & purification*; D010936:Plant Extracts / Q000302:isolation & purification*; D018515:Plant Leaves / Q000187:drug effects / Q000254:growth & development*; D058105:Polymerization
chemical_list: D009822:Oils, Volatile; D010936:Plant Extracts; D002351:Carrageenan