The effect of pre-sowing treatments on seed germination and morphology of Salvia hispanica L. seedlings

master's thesis

• Title: Utjecaj predsjetvenih tretmana na klijavost sjemena i morfologiju klijanaca Salvia hispanica L.
• Author: Andrina Meštrić
• Mentor: Martina Grdiša (mentor)
• Committee member: Martina Grdiša (predsjednik povjerenstva)
• Committee member: Vesna Židovec (član povjerenstva)
• Committee member: Klaudija Carović-Stanko (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Seed Science and Technology); Zagreb
• Defense date and country: 2017-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Salvia hispanica L. (chia) je biljna vrsta iz porodice Lamiaceae. U posljednjih nekoliko godina, sjeme chie postalo je važno u prehrani ljudi, posebice zbog visokog sadržaja omega-3 masnih kiselina. Prirodno je rasprostranjena na području Južne Amerike, a zbog nutritivnih i ljekovitih svojstava javlja se sve veći interes za uzgojem i u drugim dijelovima svijeta. Istraživanja vezana uz nutritivna i ljekovita svojstva chie su mnogobrojna, dok su agronomska svojstva istraživana u daleko manjoj mjeri, posebice sjemenarstvo vrste. Cilj diplomskog rada je utvrditi učinkovitost predsjetvenih tretmana (močenje u destiliranoj vodi kroz 24 sata; močenje u destiliranoj vodi na temperaturi od 60 ºC kroz 1 h; giberelinska kiselina; 0,2 % KNO3) na klijavost sjemena vrste S. hispanica te na morfološka svojstva klijanaca. Kod tretmana močenja sjemena u destiliranoj vodi kroz 1 h na temperaturi od 60 ºC nije proklijala niti jedna sjemenka chie dok je kod tretmana giberelinskom kiselinom u koncentraciji od 200 mg/l došlo do razvitka abnormalnih klijanaca. Kod preostalih tretmana nisu utvrđene značajne razlike u ukupnoj klijavosti sjemena, prosječnom vremenu klijanja i indeksu klijavosti, ali su utvrđene značajne razlike u dužini hipokotila, korijena i ukupne dužine klijanaca.

Abstract (english)

Salvia hispanica L. (chia) is a plant species of the Lamiaceae family. In recent years, the seed has become important in human’s diet, especially because of the high content of omega-3 fatty acids. It is naturally widespread in South America, however, due to its nutritional and medicinal properties, interest in its cultivation is growing around the world. Investigations related to the nutritional and medicinal properties of S. hispanica are numerous, however, agronomic properties are explored to a much smaller extent, especially seed germination requirements and conditions. The aim of the thesis was to determine the efficacy of different pre-sowing treatments (soaking in distilled water for 24 hours; soaking in distilled water at 60 ºC for 1 h, gibberellic acid and 0.2 % KNO3) on seed germination and morphological characteristics of the S. hispanica seedlings. Soaking the seeds in water at the temperature of 60 ºC for one hour resulted in absence of germination, while in the case of treatment with gibberellic acid at the concentration of 200 mg/l abnormal seedlings were developed. Between the remaining treatments no significant differences were found in the total germination percentage, mean germination time and germination index, but significant differences were found in the hypocotyls, roots and total seedling length.

• Keywords: chia; funkcionalna hrana; Lamiaceae; predsjetveni tretmani; Salvia hispanica L.
• Keywords (english): chia; functional food; Lamiaceae; pre-sowing treatments; Salvia hispanica L
• Language: croatian
• URN:NBN: urn:nbn:hr:204:841522
• Study programme: Title: Biljne znanosti; Study programme type: sveučilišni; Study level: diplomski; Academic / professional title: magistar / magistra inženjer/inženjerka biljnih znanosti (magistar / magistra inženjer/inženjerka biljnih znanosti)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Restricted access
• Created on: 2017-11-29 10:33:38