Sjemenarstvo, Vol. 23 No. 2, 2006.
Izvorni znanstveni članak
Breeding of sunflower quantitative traits in function of increasing grain and oil yield
Miroslav Krizmanić
Ivica Liović
Anto Miljić
Marijan Bilandžić
Tihomir Ćupić
Sažetak
The ultimate goal of sunflower breeding is to create hybrids with high grain and oil yield. As these traits are very complex, with larger or lower heritability, it is very important to work on improving of bio-morphologic traits that on direct or indirect way have influence on expression of these traits. On these traits, a large influence has environment, and therefore is needed to resolve genetic and non-genetic parameters, to know heritability of sunflower quantitative traits and their interconnection. The investigations on the twelve OS sunflower hybrids and eight traits pointed on statistical significant differences among the hybrids for plant height, head diameter, grain number per head, grain yield, oil content and oil yield. Majority of the hybrids had high oil content in grain (over 50%), high grain yield (over 3500 kg/ha), and high oil yield (over 1600 kg/ha). Grain yield was in significant positive correlation with head diameter (r=0,337*) and grain mass per head (r=0,351*), as well as in highly significant positive correlation with plant height (r=0,513**) and oil yield (r=0,971**). Among oil yield, grain mass per head and plant height are found low (r=0,333*) to medium strong (r=0,412*) significant positive correlation. By path analysis is found that the largest direct influence on oil yield had grain yield, then oil content, and remain traits had slightly influence on oil yield.
Ključne riječi
sunflower; grain and oil yield components, correlations; path analysis
Hrčak ID:
1918
URI
Datum izdavanja:
1.3.2006.
Posjeta: 1.724 *