INHERITANCE OF OIL YIELD AND ITS COMPONENTS IN SAFFLOWER (Carthamus tinctorius L.)

Abstract

In this research, a diallel cross consisting of genetically diverse six parents (Es-8517, Emek-16, Ekak-7, Emek-21, Ekay-1, Emek-24) was used, aimed to obtain estimates of the gene action in terms of plant height, first branches height, head diameter, 1000 seed weight, oil content, oil yield of per plant in safflower by using Jinks-Hayman type analyses. This study was conducted Transitional Zone Agricultural Research Institute Eskisehir, Turkey during 2016 and 2017. According to the results of all diallel crosses, environmental variance (E), additive gene variance (D), dominance gene variance (H1), (H2) and the value of interaction of additive x dominance gene variance effect (F) were found significant statistically studied traits expect head diameter. Of all the traits studied, being larger dominant gene variances (H1) than the additive gene variances (D) and negative D-H1 value indicated the more important role of dominant genes. Beside of these, positive F value shows that dominant alleles are greater than the number of recessive alleles. Result of Wr, Vr graphics indicated partial dominancy for the first branch height, head diameter, and over dominancy for the rest of the studied traits. It was determined that plant height, first branches height, head diameter, 1000 seed weight, oil content, oil yield of per plant had low narrow heritability values. According to results to obtain superior plants in this hybrid population to perform single plant selection in F3 and F4 generations would be more appropriate.

Combining Ability of Selected Soybean [Glycine max (L.) Merrill] Parental Lines

“…Combined analysis of variance of partial diallel crosses of soybean for yield and yield-related traits across locations revealed that the two environments were significantly different from each other (Table 2). Entries (parents and crosses) were significantly different from each other for all the traits studied, indicating sufficient genetic variability among the parents and crosses generated (Kose, 2019). Significant interaction between environment and entries was observed in all the measured traits, except for number of pods/plant and seed yield/plant.…”

Oil and seed yields affected by sowing dates and irrigation regimes applied in growth phenological stages of safflower

“…Our data suggest that water scarcity in the reproductive stages of safflower restricts grain yield. Results of other studies have shown that supplemental irrigation at the reproductive stages of safflower increases grain yield (Istanbulluoglu et al, 2009;Kar et al, 2007;Lovelli et al, 2007;Omidi et al, 2012;Pourdad, 2008;Santos et al, 2018;Zarghami et al, 2011).…”

“…Different irrigation strategies including interruption or supplemental irrigation at phenological stages of safflower have been tested for evaluation of safflower response to moisture regimes. Periodic water deficit and interruption of irrigation at bud formation, beginning of flowering, end of flowering, and seed filling affect seed yield trait in safflower (Istanbulluoglu, 2009; Karas, 2020; Omidi et al., 2012). In the Shahrokhnia and Sepaskhah (2017) study, variable alternate furrow irrigation was more efficient than ordinary furrow irrigation for safflower farms as it led to lower yield reduction and more drought tolerance.…”

Row and Plant Spacing Effects on the Yield and Yield Components of Safflower in a Mediterranean-Type Environment

“…Cultivar it can be related to disability of plants to use environment potential. Previous studies indicated that the oil content of safflower mostly depends more on the cultivar than the agronomic application and environmental conditions (Rahamatalla et al, 2001;Jajarmi et al, 2008;Emami et al, 2011;Kose and Bilir, 2017).…”