STUDY OF COMBINING ABILITY, HERITABILITY AND HETEROSIS IN CORN USING DIALLEL CROSSES OF INBRED LINES

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ASLZARE M.; CHOUKAN R.; MAJIDI HERAVAN E.; BIHAMTA M.R.

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Paper Information

Journal: IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING Year:2010 | Volume:6 | Issue:1 Page(s): 43-63

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Information Journal Paper

Title

STUDY OF COMBINING ABILITY, HERITABILITY AND HETEROSIS IN CORN USING DIALLEL CROSSES OF INBRED LINES

Author(s)

ASLZARE M. | CHOUKAN R. | MAJIDI HERAVAN E. | BIHAMTA M.R. | Issue Writer Certificate

Keywords

CORNQ2

DIALLELQ3

HETEROSISQ2

CORRELATIONQ2

HERITABILITYQ2

Abstract

In 2005, 7 inbred lines of CORN were crossed in a full DIALLEL scheme. The 7 parents and 42 hybrids were planted in field based on RCBD design with three replications. Results of ANOVA showed significant differences between genotypes. Griffing’s method 1 showed significant GCA and SCA effects for all evaluated traits. Variance of reciprocal effects also was significant for some of the traits that indicate presence of maternal inheritance. Based on Baker coefficient, additive gene effects were predominant to control of majority of traits. Results of genotype and phenotype CORRELATIONs between studied traits and grain yield showed that increasing number of kernels per row, plant height, ear height, grain depth number of rows per ear and decreasing days to silking and days to physiologic maturity seems to be suitable for grain yield improvement. The range of broadsense heritabilities were between 16% and 93% for grain depth and number of rows per ear and narrowsense heritabilities were between 1% and 85% for grain yield and number of rows per ear respectively. Based on mean comparisons, high parent HETEROSIS, general and specific combining abilities of parents and hybrids, 3 inbred line for increasing number of kernels per row and grain yield, 1 inbred line for increasing ear length, 2 inbred line for decreasing grain depth and 3, 7 and 6 inbred lines for increasing number of rows per ear were suitable resources for increasing grain yield.

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APA: Copy

ASLZARE, M., CHOUKAN, R., MAJIDI HERAVAN, E., & BIHAMTA, M.R.. (2010). STUDY OF COMBINING ABILITY, HERITABILITY AND HETEROSIS IN CORN USING DIALLEL CROSSES OF INBRED LINES. IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING, 6(1), 43-63. SID. https://sid.ir/paper/190267/en

Vancouver: Copy

ASLZARE M., CHOUKAN R., MAJIDI HERAVAN E., BIHAMTA M.R.. STUDY OF COMBINING ABILITY, HERITABILITY AND HETEROSIS IN CORN USING DIALLEL CROSSES OF INBRED LINES. IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING[Internet]. 2010;6(1):43-63. Available from: https://sid.ir/paper/190267/en

IEEE: Copy

M. ASLZARE, R. CHOUKAN, E. MAJIDI HERAVAN, and M.R. BIHAMTA, “STUDY OF COMBINING ABILITY, HERITABILITY AND HETEROSIS IN CORN USING DIALLEL CROSSES OF INBRED LINES,” IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING, vol. 6, no. 1, pp. 43–63, 2010, [Online]. Available: https://sid.ir/paper/190267/en

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