000			03402nab|a22004217a|4500
001			69536
003			MX-TxCIM
005			20251201112821.0
008			251119s2025 ii ||||| |||| 00| 0 eng d
022			_a2457-0591
024			_ahttps://doi.org/10.9734/jeai/2025/v47i103820
040			_aMX-TxCIM
041			_aeng
100	0		_aSomanatha _940546
245	1	0	_aPhenotypic characterization and genetic diversity of sweet corn inbred lines
260			_aIndia : _bScienceDomain International, _c2025.
500			_aPeer review
500			_aOpen Access
520			_aAn experiment was conducted to evaluate genetic diversity among 23 sweet corn (Zea mays L. saccharata) inbred lines during rabi 2024 at the Main Agriculture Research Station, University of Agricultural Sciences, Raichur, Karnataka. The sweet corn inbred lines were evaluated in a randomized complete block design with two replications. Observations were recorded on key traits and data were analyzed for variability, clustering and principal component analysis (PCA). Analysis of variance revealed significant differences among inbreds, indicating the presence of substantial genetic variability. High genotypic and phenotypic coefficients of variation were observed for kernels per row and kernel rows per cob, while seed weight showed narrow variability. High heritability coupled with high genetic advance for kernels per row and kernel rows per cob suggested the predominance of additive gene action, highlighting the effectiveness of direct selection. Cluster analysis grouped the sweet corn inbreds into three distinct clusters, with maximum inter-cluster divergence observed between Cluster I and Cluster III, providing greater scope for heterotic hybrid development. Cluster mean analysis revealed trait-specific superiority i.e. Cluster I for yield traits, Cluster II for sweetness and Cluster III for kernel compactness. PCA indicated that the first three components accounted for 79.77% of total variation, with cob yield traits contributing predominantly, followed by phenological and quality traits. Promising divergent sweet corn genotypes such as SC-22, SC-30, SC-14 and SC-20 were identified as potential parents. The identified heterotic groups provide a strong genetic basis for parental selection and heterosis exploitation in sweet corn breeding.
546			_aText in English
597			_aClimate adaptation & mitigation _bAccelerated Breeding _cGenetic Innovation _dIndian Council of Agricultural Research (ICAR) _uhttps://hdl.handle.net/10568/178389
650		7	_aCluster sampling _2AGROVOC _916913
650		7	_aGenetic variation _2AGROVOC _91129
650		7	_aHeterotic groups _2AGROVOC _929280
650		7	_aInbred lines _2AGROVOC _91155
650		7	_aPrincipal component analysis _2AGROVOC _930383
650		7	_aMorphology _2AGROVOC _910676
650		7	_aSweet corn _2AGROVOC _910976
700	1		_aPatil, A. _93768
700	1		_aKuchanur, P.H. _93769
700	0		_aB. Kisan _98274
700	1		_aYeri, S. _940531
700	1		_aVinayan, M.T. _gGlobal Maize Program _8INT3341 _9925
700	1		_aZaidi, P.H. _gGlobal Maize Program _8INT2823 _9862
773	0		_tJournal of Experimental Agriculture International _gv. 47, no. 10, p. 350-360 _dIndia : ScienceDomain International, 2025. _x2457-0591
856	4		_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/36113
942			_cJA _n0 _2ddc
999			_c69536 _d69528