Varijabilnost nutritivnog sastava domaćih populacija kukuruza

master's thesis

• Title (english): Variability of nutritional composition of domestic maize landraces
• Author: Marina Zeko
• Mentor: Hrvoje Šarčević (mentor)
• Committee member: Hrvoje Šarčević (predsjednik povjerenstva)
• Committee member: Ivan Pejić (član povjerenstva)
• Committee member: Ivanka Habuš Jerčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Plant Breeding Genetics, Biometrics and Experimentation); Zagreb
• Defense date and country: 2021-09-10, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Domaće populacije kukuruza prilagođene su lokalnim uzgojnim uvjetima i izvor su velike varijabilnosti važnih agronomskih i nutritivnih svojstava. Sadržaj proteina i ulja u zrnu važna su svojstva kako za ishranu stoke tako i za ljudsku prehranu. Poznavanje varijabilnosti nutritivnih svojstava zrna kod domaćih populacija kukuruza može pomoći u izboru materijala za korištenje u oplemenjivačkim programima kukuruza usmjerenim na povećanje kvalitete kao i kod izbora populacija za uzgoj na ekološkim poljoprivrednim gospodarstvima. Cilj ovog rada bio je utvrditi sadržaj proteina, ulja i škroba u zrnu te povezanost nutritivnog sastava zrna i morfoloških karakteristika klipa i zrna kod 25 domaćih populacija kukuruza. Najveći sadržaj proteina i ulja u zrnu utvrđen je kod populacija iz južne Hrvatske, dok je najveći sadržaj škroba u zrnu opažen kod populacija iz istočne Hrvatske. Od proučavanih morfoloških svojstava jedino su prinos zrna po klipu, masa 1000 zrna i duljina zrna pokazivali konzistentne negativne korelacije sa sadržajem proteina te pozitivne korelacije sa sadržajem škroba u zrnu.

Abstract (english)

Domestic maize landraces are adapted to local cultivation conditions and are a source of great variability of important agronomic and nutritional properties. The content of protein and oil in the grain are important properties for both livestock and human nutrition. Knowing the variability of grain nutritional composition in domestic maize landraces can help in the selection of materials for use in maize breeding programs aimed at increasing quality as well as in the selection of populations for cultivation on organic farms. The aim of this study was to determine the content of protein, oil and starch in the grain and the relationship between grain nutritional composition and morphological characteristics of cobs and grains in 25 domestic maize populations. The highest grain protein and oil content was determined in populations from southern Croatia, while the highest grain starch content was observed in populations from eastern Croatia. Among studied morphological traits, only grain yield per cob, 1000 grain weight and grain length showed consistent negative correlations with protein content and positive correlations with starch content.

• Keywords: kukuruz; populacija; nutritivna svojstva zrna; korelacija
• Keywords (english): maize; landrace; grain nutritional composition; correlation
• Language: croatian
• URN:NBN: urn:nbn:hr:204:501177
• Study programme: Title: Organic Agriculture with Agrotourism; Study programme type: university; Study level: graduate; Academic / professional title: magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma (magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-10-18 06:32:10