Pregled bibliografske jedinice broj: 688960
Seed yield of Bc maize inbred lines as affected by plant population densities
Seed yield of Bc maize inbred lines as affected by plant population densities // Book of Abstracts 49th Croatian and 9th International Symposium on Agriculture / Marić, Sonja ; Lončarić, Zdenko (ur.).
Osijek: Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2014. str. 131-132 (predavanje, međunarodna recenzija, sažetak, ostalo)
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Naslov
Seed yield of Bc maize inbred lines as affected by plant population densities
Autori
Jareš, Dario ; Svečnjak, Zlatko ; Varga Boris
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo
Izvornik
Book of Abstracts 49th Croatian and 9th International Symposium on Agriculture
/ Marić, Sonja ; Lončarić, Zdenko - Osijek : Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2014, 131-132
ISBN
978-953-7871-23-9
Skup
49th Croatian and 9th International Symposium on Agriculture
Mjesto i datum
Dubrovnik, Hrvatska, 16.02.2014. - 21.02.2014
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
maize ; inbred line ; seed yield ; plant population density
Sažetak
Plant population density (PPD) is one of most important factor determining the yield of maize crop because of its effect on leaf area and photosynthetic activity. Optimal PPD for maize hybrids is well documented. However, maize inbred lines are characterised by smaller leaf area per plant, and consequently, optimal PPD for inbred lines may differ than those for hybrids of similar maturity. Growing conditions may also significantly affect seed yields of maize inbred lines. A field study was conducted over two growing seasons on two sites (Maksimir and Rugvica). The effect of various PPDs (60.000, 75.000 i 90.000 plants ha-1) on seed yield were determined on three Bc inbred lines grown under intensive management. Seed yields at PPD of 60.000 plants ha-1 averaged 4923 kg ha-1. Higher PPDs produced larger seed yields despite of significant decreases in 1000-kernel weight and kernel number per plant, as well as increased number of barren plants ha-1. Compared to the smallest PPD, seed yields increased by an average of 9, 8% at 75.000 and 16, 4% at 90.000 plants ha-1. Growing season and site significantly influenced seed yields. Tested maize inbred lines differed for seed yields, whereas a significant PPD × inbred interaction was also found. Our findings indicated that seed yields of Bc inbred lines might be increased when grown under higher PPDs (up to 90.000 plants ha-1), but these yield increments were inbred specific.
Izvorni jezik
Engleski
