INTERRELATIONSHIP BETWEEN OIL YIELD AND OTHER QUANTITATIVE TRAITS IN RAPESEED (Brassica napus L.)

2007, 8 (2)   p. 165-170

Ana MARJANOVIĆ-JEROMELA, Radovan MARINKOVIĆ, Anto MIJIĆ, Mirjana JANKULOVSKA, Zvonimir ZDUNIĆ

Abstract

The objective of the investigation was to estimate interrelationship among rapeseed quantitative traits using simple regression coeffi cients, as well as to assess direct and indirect effects of specifi c traits to oil yield/ha via path analysis. Three year investigation was carried out including thirty rapeseed genotypes. The following traits were investigated: number of pods per plant, oil content, 1000 seed weight, pre-anthesis duration, post-anthesis duration, seed yield/ha and oil yield/ha. Almost complete correlation was determined between seed yield/ha and oil yield/ha and strong between oil content and oil yield/ha. The strongest direct effects to oil yield/ha was estimated for seed yield/ha, whereas other investigated traits showed low or no effect to oil yield/ha.

Keywords

rapeseed, oil yield/ha, correlation, path analysis

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