Utjecaj vrste supstrata na prinos paprike u hidroponskom uzgoju

master's thesis

• Title (english): Effect of substrate type on yield components of hydroponically grown pepper
• Author: Tomislav Stanišić
• Mentor: Božidar Benko (mentor)
• Committee member: Božidar Benko (predsjednik povjerenstva)
• Committee member: Sanja Fabek Uher (član povjerenstva)
• Committee member: Nina Toth (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Vegetable Crops); Zagreb
• Defense date and country: 2016-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy; Vegetable Growing

Abstract

Zbog anorganskog porijekla kamene vune, ona se nakon korištenja sporo razgrađuje što predstavlja ekološki problem. Tijekom 2015. provedeno je istraživanje s ciljem testiranja mogućnosti korištenja organskog supstrata domaće proizvodnje u hidroponskom uzgoju paprike, u usporedbi s kamenom vunom. Istraživanje je provedeno u plasteniku na pokušalištu Zavoda za povrćarstvo Agronomskog fakulteta u Zagrebu. Testirana su tri kultivara paprike (Irene, Cara i Kalifornijsko čudo) posađena na ploče kamene vune, organski supstrat i organski supstrat s dodatkom sporootpuštajućeg gnojiva. Pokus je postavljen po slučajnom bloknom rasporedu u četiri ponavljanja. Biljke su posađene na razmak 120 cm između redova i 33 cm unutar reda čime je ostvaren sklop od 2,5 biljke/m2. Tijekom vegetacije dnevno su praćene minimalna i maksimalna temperatura i vlaga zraka. Biljke paprike pincirane su na dvije grane. U vrijeme plodonošenja, tijekom perioda od 1. srpnja do 14. kolovoza obavljeno je pet berbi. Utvrđen je broj i masa tržnih plodova, tržni prinos i udio netržnih plodova sa simptomima vršne truleži u ukupnom broju plodova. Statistička analiza obavljena je analizom varijance (ANOVA), dok su razlike između prosječnih vrijednosti utvrđene korištenjem LSD testa.
Svi su testirani kultivari razvili tržne plodove zadovoljavajuće mase iznad 100 g. Vrsta supstrata značajno je utjecala na broj i prinos tržnih plodova. Kultivari uzgajani na kamenoj vuni razvili su znatno veći broj tržnih plodova u odnosu na organski i miješani supstrat, što je rezultiralo znatno većim prinosom. Na masu tržnih plodova vrsta supstrata nije značajno utjecala. Nije utvrđena signifikantna razlika između kultivara, odnosno, supstrata u udjelu netržnih plodova.

Abstract (english)

Inorganic rockwool breaks down slowly after it was used which makes it a environmental problem. Research was done in 2015, with the objective to investigate the influence of local organic and mixed substrates on the yield components of pepper and to compare it with the results obtained on rockwool. Research was conducted in a greenhouse on the experimental field of the Department of Vegetable Crops, Faculty of Agriculture in Zagreb. Three pepper cultivars were tested (Irene, Cara, Kalifornijsko čudo) and were planted on rockwool and organic and mixed substrates (organic with slow release fertilizer). The experiment was set up according to the complete randomized block design with four replications. Planting was done at a distance of 120 cm between rows and 33 cm within the rows which represents a set of 2.5 plants per m2. Minimum and maximum air temperatures and relative humidity were measured daily during the vegetation. Greenhouse peppers were pruned on two stems in a V-cordon form. Five harvests were done from July 1st to August 14th. Number and weight of marketable fruits was determined along with marketable yield and the share of non-marketable fruits with blossom end-rot symptoms in the total number of fruits. Statistic analysis of the results was done by variance analyze (ANOVA) while the differences between average values were determined using LSD test.
All tested cultivars developed marketable fruits with satisfactory mass above 100 g. Type of substrate significantly influenced the number and yield of marketable fruits. The cultivars grown on rockwool provided significantly higher number of marketable fruits in relation to the organic substrate or mixed organic substrate, which resulted with higher marketable yield. Type of substrate did not significantly affect the mass of marketable fruits. Significant differences were not observed between cultivars and substrate in the share of non-marketable fruits.

• Keywords: Capsicum annuum L.; supstrat; kamena vuna; organski supstrat; sortiment; tržni prinos
• Keywords (english): Capsicum annuum L.; substrate; rockwool; organic substrate; cultivar
• Language: croatian
• URN:NBN: urn:nbn:hr:204:137740
• Study programme: Title: Horticulture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2016-12-14 07:22:23