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Thakur, Naresh
- Correlation and Path Analysis of Agro-Morphometric Traits in Maize (Zea mays L.)
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Authors
Affiliations
1 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
1 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
Source
Himachal Journal of Agricultural Research, Vol 41, No 2 (2015), Pagination: 163-167Abstract
Correlation and path coefficient among eleven agro-morphometric traits of forty maize inbred lines (14 QPM lines and 26 non- QPM lines) grown during kharif 2011 were studied. Correlation analysis revealed that grain yield exhibited significant positive association with 100-seed weight implying that improvement in grain yield can be obtained by improving the latter. Further, path coefficient analysis partitioned the correlation into direct and indirect effects. Path analysis revealed highest positive direct effect of days to 50% silking on grain yield, followed by cob girth and 100-seed weight; hence selection based on these characters would be more rewarding.Keywords
Maize, Agro-Morphometric Traits, Correlation, Path Analysis.Full Text
- Evaluations of Maize Genotypes Against Banded Leaf and Sheath Blight Under Natural and Artificial Epiphytotic Conditions
Abstract Views :230 |
PDF Views:1
Authors
Affiliations
1 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur - 176 062, IN
2 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, RSS, Akrot, IN
3 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, HAREC, Bajaura, IN
1 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur - 176 062, IN
2 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, RSS, Akrot, IN
3 Department of Crop Improvement, CSK Himachal Pradesh Krishi Vishvavidyalaya, HAREC, Bajaura, IN
Source
Himachal Journal of Agricultural Research, Vol 44, No 1&2 (2018), Pagination: 17-24Abstract
Rhizoctonia solani, causal agent of banded leaf and sheath blight (BLSB) is widely distributed in the India in maize causing severe yield losses. In this study, a set was obtained by crossing ten QPM inbred lines in 10 × 10 diallel fashion (excluding reciprocals). In total sixty lines including parents, F1's, procured hybrids and standard check (HQPM-1 and Vivek QPM-9) were evaluated against banded leaf and sheath blight of maize under field conditions and artificial conditions during kharif 2016 and 2017, respectively. Data on reaction of maize genotypes to banded leaf and sheath blight under natural epiphytotic conditions revealed that the six parents viz., CML161, CML189, BAJIMQ-08-27, CML193, CML162 and CML171, one hybrid HQPM-7, one QPM check Vivek QPM-9 and forty one crosses were found to be moderately resistant. Under artificial epiphytotic condition thirteen crosses viz., BAJIMQ-08-27 × CML162, BAJIMQ-08-27 × CML161, CML162 × CML161, CML163 × CML161, CML170 × CML163, BAJIMQ-08-26 × CML171, CML193 × BAJIMQ-08-27, BAJIMQ-08-26 × CML161, CML193 × CML161, BAJIMQ-08-26 × CML163, BAJIMQ-08-27 × CML171, CML180 × CML161 and CML189 × CML163 showed moderately resistant reaction to BLSB; however, one cross was found susceptible (CML180 × BAJIMQ-08-27). These lines identified to possess low disease incidence score against BLSB in the present study could be used successfully in developing genotypes having desirable level of resistance in disease endemic areas to aim for sustainable productivity.Keywords
Banded Leaf and Sheath Blight, Artificial, Natural, Epiphytotic, QPM.Full Text
References
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