MORPHOLOGICAL TRAITS AND DNA MARKER ASSAY BASED DIVERSITY IN SELECTED CLONES OF SUGARCANE (Saccharum officinarum L.)
KrishiKosh
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Title |
MORPHOLOGICAL TRAITS AND DNA MARKER ASSAY BASED DIVERSITY IN SELECTED CLONES OF SUGARCANE (Saccharum officinarum L.)
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Creator |
GURUPRASAD, HIREMATH
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Contributor |
Nagaraja, T E
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Description |
The present diversity study comprising 35 selected clones of sugarcane was conducted in RCBD with two replications during 2011-12 at Zonal Agricultural Research Station, V.C. Farm, Mandya. The analysis of variance indicated the presence of significant variability among the genotypes for all traits studied. Cane yield, CCS (t/ha) and single cane weight exhibited high GCV and PCV coupled with high GAM, whereas high heritability coupled with GAM was exhibited by millable cane number, cane yield, sugar yield and number of internodes indicating the role of additive genes for the expression of these traits, hence the selection for these traits could be effective. Cane yield and CCS (t/ha) had significant positive association with number of tillers, NMC, cane length and single cane weight. CCS (t/ha) also had significant positive correlations with cane and CCS cane yield. Cane length and CCS per cent exhibited highest direct effects on cane and sugar yields, respectively. Eight clusters were formed on grouping of clones based on Mahalanobis D2 distances. The results indicated that cluster V and VII involved highly diverse genotypes can be chosen for recombination breeding and isolating desirable clone combinations. Cluster IV (VCF 0721-01 and VCF 0842-03) and II (VCF 0830-04 and VCF 0838-07) were found superior for quality and cane yield, respectively. The clustering of 35 clones into six clusters based on 30 STMS marker analysis also revealed divergence between the genotypes. Among six clusters, cluster III was the largest with 26 clones. The genotype VCF 0705-05 and VCF 0815-08 and VCF 0838- 07 were highly diverse at molecular level. The study also recognised that, the genotypes, VCF 0830-04, VCF 0629-04, VCF 0712-02, VCF 0721-01 and VCF 0842-08 were superior for CCS (t/ha) and cane yield. Hence these genotypes can be selected and advanced through further breeding programme. |
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Date |
2016-12-06T10:03:15Z
2016-12-06T10:03:15Z 2012-08-04 |
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Type |
Thesis
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Identifier |
TH-10280
http://krishikosh.egranth.ac.in/handle/1/89250 |
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Language |
en
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Format |
application/pdf
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Publisher |
University of Agricultural Sciences GKVK, Bangalore
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