GENETIC VARIATION, HERITABILITY AND RELATION AMONG AGRONOMIC TRAITS IN YELLOW AND BROWN-SEEDED GENOTYPES OF FLAX

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SAEIDI GH.; ABBASI Z.; MIRLOUHI A.F.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2003 | Volume:10 | Issue:1 Page(s): 99-114

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Title

GENETIC VARIATION, HERITABILITY AND RELATION AMONG AGRONOMIC TRAITS IN YELLOW AND BROWN-SEEDED GENOTYPES OF FLAX

Author(s)

SAEIDI GH. | ABBASI Z. | MIRLOUHI A.F. | Issue Writer Certificate

Keywords

FLAXQ4

GENETIC VARIATIONQ3

HERITABILITYQ4

CORRELATION COEFFICIENTSQ4

PATH ANALYSISQ3

Abstract

Oil of regular genotypes of FLAX (Linum usitatissimum L.) is used as drying oil in different industries, because of its high level of linolenic acid (>50%). However, oil of new genotypes of FLAX which have been produced by mutation breeding programs have a very low level of linilenic acid (<2%) and can be used as edible oil. Yellow seed color can be considered and used as a very good visual marker to distinguish edible-oil varieties of FLAX from those of industrial types which are usually brown-seeded. Although, yellow seed color could be associated with higher oil content, it may adversely affect on emergence and seed yield. The objectives of this experiment were to study GENETIC VARIATION and relation among agronomic traits in brown and yellow-seeded genotypes of FLAX. The experiment was conducted in Isfahan University of Technology Research Farm, using a randomized complete block design with 3 replications in which the genotypes were evaluated for different traits such as emergence, height, maturity, seed yield and yield components. The results showed that there was considerable phenotypic and genotypic variation for seedling emergence, number of boils per plant and seed yield per plant among the genotypes. Broad-sense HERITABILITY was high (52-84%) for number of seedlings 1m2,days to 50% emergence, days to maturity and plant height in both yellow and brown-seeded genotypes. HERITABILITY in terms of broad sense for number of boils per plant, seeds per boil, seed weight and seed yield was estimated as very low (1.99),28, 47.2 and 23.8 in brown-seeded and 28.9, 11.5,84.1 and 44.9 in yellow-seeded genotypes, respectively. Seed yield per plant showed a high and positive correlation with each of basal branching and number of boils per plant, but a high and negative correlation with number of seedlings/m2. Based on regression analysis in all genotypes and also genotypes with different seed color, the most important components of seed yield per plant were the number of boils per plant, seeds per boil, and seed weight, respectively. However, number of boils per plant contributed in the most (90%) of the variation of seed yield per plant. PATH ANALYSIS revealed that the number of boils per plant had the most direct and positive effect and indirect effect through the other traits on seed yield per plant.

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APA: Copy

SAEIDI, GH., ABBASI, Z., & MIRLOUHI, A.F.. (2003). GENETIC VARIATION, HERITABILITY AND RELATION AMONG AGRONOMIC TRAITS IN YELLOW AND BROWN-SEEDED GENOTYPES OF FLAX. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 10(1), 99-114. SID. https://sid.ir/paper/9398/en

Vancouver: Copy

SAEIDI GH., ABBASI Z., MIRLOUHI A.F.. GENETIC VARIATION, HERITABILITY AND RELATION AMONG AGRONOMIC TRAITS IN YELLOW AND BROWN-SEEDED GENOTYPES OF FLAX. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2003;10(1):99-114. Available from: https://sid.ir/paper/9398/en

IEEE: Copy

GH. SAEIDI, Z. ABBASI, and A.F. MIRLOUHI, “GENETIC VARIATION, HERITABILITY AND RELATION AMONG AGRONOMIC TRAITS IN YELLOW AND BROWN-SEEDED GENOTYPES OF FLAX,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 10, no. 1, pp. 99–114, 2003, [Online]. Available: https://sid.ir/paper/9398/en

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