Utjecaj roka i gustoće sjetve na agronomska svojstva soje

master's thesis

• Title (english): Impact of sowing date and seeding rate on agronomic traits of soybean
• Author: Luka Petešić
• Mentor: Ana Pospišil (mentor)
• Committee member: Ana Pospišil (predsjednik povjerenstva)
• Committee member: Željko Jukić (član povjerenstva)
• Committee member: Hrvoje Šarčević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Field Crops, Forage and Grassland); Zagreb
• Defense date and country: 2020-09-16, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Na pokušalištu Agronomskog fakultete u Zagrebu 2019. godine provedeno je istraživanje čiji je cilj bio utvrditi utjecaj roka i gustoća sjetve na agronomska svojstva soje. U istraživanju su bile uključene dvije sorte soje AFZG Ana (veg. skupina 0) i Gabriela (veg. skupina 00-0), tri gustoće sjetve (40, 60 i 90 sjemenki/m2) te dva roka sjetve (optimalni rok 25. travnja i naknadni rok 1. lipnja). Pokus je postavljen po strip plot shemi u 4 ponavljanja. Sorta Gabriela ostvarila je veći prinos u odnosu na sortu AFZG Ana u oba roka sjetve, ali razlika je bila statistički značajna jedino u optimalnom roku. Sorta Gabriela ostvarila je u optimalnom roku sjetve značajno veću visinu biljke, veći broj etaža, plodnih etaža, mahuna, sjemenki i veću masu sjemena po biljci u odnosu na sortu AFZG Ana. U oba roka sjetve s povećanjem gustoće sjetve smanjivale su se vrijednosti komponenata prinosa, ali razlike nisu bile statistički značajne. U optimalnom roku sjetve ostvarena je značajno veća visina biljke i broj etaža na glavnoj stabljici, dok je u naknadnom roku sjetve ostvaren značajno veći žetveni indeks.

Abstract (english)

In 2019, a research was conducted at the experimental field of the Faculty of Agriculture in Zagreb, with the aim to determine the influence of sowing date and density on the agronomic traits of soybeans. The study included two soybean varieties AFZG Ana (maturity group 0) and Gabriela (maturity group 00-0), three sowing densities (40, 60 and 90 seeds / m2) and two sowing dates (optimal date on April 25 and delayed date, June 1). The experiment was set up as a strip plot scheme with 4 replications. Variety Gabriela achieved a higher yield compared to the variety AFZG Ana in both sowing dates, but the difference was only statistically significant in the optimal sowing date. In the optimal sowing date variety Gabriela had significantly taller plants, a larger number of nodes, fertile nodes, pods, seeds and a bigger mass of seeds per plant compared to AFZG Ana. In both sowing dates, the values of yield components decreased with an increase in sowing density, but the differences were not statistically significant. Optimal sowing date had significantly taller plants and more nodes on the main stem, while the delayed sowing date achieved a significantly higher harvest index.

• Keywords: soja; sorta; gustoća sjetve; rok sjetve; agronomska svojstva
• Keywords (english): soybean; variety; sowing density; sowing date; agronomic traits
• Language: croatian
• URN:NBN: urn:nbn:hr:204:553710
• Study programme: Title: Plant Sciences; Study programme type: university; Study level: graduate; 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: Access restricted to students and staff of home institution
• Created on: 2020-11-17 11:49:14