GENETIC MODE CONTROLLING SEED YIELD AND OIL CONTENT IN LOCAL SAFFOWER GENOTYPES USING GENERATIONS MEAN ANALYSIS

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PAHLEVANI M.H.; SAEIDI GH.; MIRLOUHI A.F.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2005 | Volume:11 | Issue:4 Page(s): 25-34

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Title

GENETIC MODE CONTROLLING SEED YIELD AND OIL CONTENT IN LOCAL SAFFOWER GENOTYPES USING GENERATIONS MEAN ANALYSIS

Author(s)

PAHLEVANI M.H. | SAEIDI GH. | MIRLOUHI A.F. | Issue Writer Certificate

Keywords

SAFFLOWERQ3

GENERATIONSQ3

MEAN ANALYSISQ3

Abstract

Information on genetic control of agronomic characteristics, inbreeding depression and heterosis effects is needed to improve efficiency of breeding programs. SAFFLOWER genotype lines selected from different local populations along with their F1and F2generations were evaluated in this study. Results of GENERATIONS MEAN ANALYSIS showed that additive and dominance effects play a major role in control of seed yield per plant. Considering the dominance parameter in genetic model, it was concluded that in some crosses responsible alleles for increasing yield per plant were dominant and in other cosses were recessive. Heterosis relative to high parent for seed yield per plant varied from 2.8 to 121.0% in different crosses. Also, one generation of inbreeding decreased (maximum to 18.9%) and increased (maximum to 19.5%) seed yield per plant in deferent crosses. The additive-doinance genetic model explained most of variation among GENERATIONS for oil content in most crosses, especially IUTKH211×IUTE1449 and IUTH13×IUTE1449. Therefore, selection could improve oil content in variation from -12.6 to 14.9%. Inbreeding decreased (maximum to 7.5%) and increased (maximum to 17.7%) oil content in different crosses. The additive dominance genetic model failed to explain observed variation for days to 50% flowering, 100-seedweight and plant height in most of crosses. This was an indication that epistatic effects might play a considerable role in controlling these traits. Maximum amount of heterosis relative to hight parent for 100-seedweight, days to flowering and plant height were 14.8, 1.9 and 3.1%, respectively. However, inbreeding had no considerable effects on these traits.

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References

مقایسه گلرنگ وحشی و گلرنگ اهلی از لحاظ چند صفت بتانیکی و زراعتی

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APA: Copy

PAHLEVANI, M.H., SAEIDI, GH., & MIRLOUHI, A.F.. (2005). GENETIC MODE CONTROLLING SEED YIELD AND OIL CONTENT IN LOCAL SAFFOWER GENOTYPES USING GENERATIONS MEAN ANALYSIS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 11(4), 25-34. SID. https://sid.ir/paper/9000/en

Vancouver: Copy

PAHLEVANI M.H., SAEIDI GH., MIRLOUHI A.F.. GENETIC MODE CONTROLLING SEED YIELD AND OIL CONTENT IN LOCAL SAFFOWER GENOTYPES USING GENERATIONS MEAN ANALYSIS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2005;11(4):25-34. Available from: https://sid.ir/paper/9000/en

IEEE: Copy

M.H. PAHLEVANI, GH. SAEIDI, and A.F. MIRLOUHI, “GENETIC MODE CONTROLLING SEED YIELD AND OIL CONTENT IN LOCAL SAFFOWER GENOTYPES USING GENERATIONS MEAN ANALYSIS,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 11, no. 4, pp. 25–34, 2005, [Online]. Available: https://sid.ir/paper/9000/en

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