Optimizing rice (Oryza sativa L.) yield and lodging resistance using MGIDI and conventional selection indices
To deal with the changing climate there is a necessity to develop climate resilient varieties without compromising yield. Hence concentrating on all the traits is essential to select genotypes. On utilization of the selection indices SI 1, SI 2, SI 3, and MGIDI we have observed that the modern selec...
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| Language: | English |
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Indian Society of Plant Breeders
2024-12-01
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| Series: | Electronic Journal of Plant Breeding |
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| Online Access: | https://ejplantbreeding.org/index.php/EJPB/article/view/5195 |
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| author | Durga Prasad Mullangie1,Kalaimagal Thiyagarajan1*,Manonmani Swaminathan2, Sritharan Natarajan2 and Senthilkumar Govindan2 |
| author_facet | Durga Prasad Mullangie1,Kalaimagal Thiyagarajan1*,Manonmani Swaminathan2, Sritharan Natarajan2 and Senthilkumar Govindan2 |
| author_sort | Durga Prasad Mullangie1,Kalaimagal Thiyagarajan1*,Manonmani Swaminathan2, Sritharan Natarajan2 and Senthilkumar Govindan2 |
| collection | DOAJ |
| description | To deal with the changing climate there is a necessity to develop climate resilient varieties without compromising yield. Hence concentrating on all the traits is essential to select genotypes. On utilization of the selection indices SI 1, SI 2, SI 3, and MGIDI we have observed that the modern selection indices such as MGIDI are superior over the Smith Index as MGIDI reported a gain of 2% in yield in F5 which simultaneously improved lodging resistance with a gain of 39.6% for section modulus and 34.7% for bending stress. In BC1F4, a selection gain of 5.80% for yield with simultaneous improvement in culm diameter at 5.89% gain was observed. Hence MGIDI was found to be superior over conventional indices, which improved both lodging resistance and yield.
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| format | Article |
| id | doaj-art-56219045794e4e25892718dbbf71be4f |
| institution | Kabale University |
| issn | 0975-928X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj-art-56219045794e4e25892718dbbf71be4f2025-01-20T10:52:42ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2024-12-0115483284210.37992/2024.1504.101Optimizing rice (Oryza sativa L.) yield and lodging resistance using MGIDI and conventional selection indicesDurga Prasad Mullangie1,Kalaimagal Thiyagarajan1*,Manonmani Swaminathan2, Sritharan Natarajan2 and Senthilkumar Govindan201Department of Genetics and Plant Breeding, Centre for Plant Breeding and Genetics (CPBG), Tamil Nadu Agricultural University, Coimbatore- 641003 2Department of Rice, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641003 *E-Mail: kalaimagal.t@tnau.ac.inTo deal with the changing climate there is a necessity to develop climate resilient varieties without compromising yield. Hence concentrating on all the traits is essential to select genotypes. On utilization of the selection indices SI 1, SI 2, SI 3, and MGIDI we have observed that the modern selection indices such as MGIDI are superior over the Smith Index as MGIDI reported a gain of 2% in yield in F5 which simultaneously improved lodging resistance with a gain of 39.6% for section modulus and 34.7% for bending stress. In BC1F4, a selection gain of 5.80% for yield with simultaneous improvement in culm diameter at 5.89% gain was observed. Hence MGIDI was found to be superior over conventional indices, which improved both lodging resistance and yield. https://ejplantbreeding.org/index.php/EJPB/article/view/5195smith hazel indexgenetic weightssection modulusbending stressmulticollinearity |
| spellingShingle | Durga Prasad Mullangie1,Kalaimagal Thiyagarajan1*,Manonmani Swaminathan2, Sritharan Natarajan2 and Senthilkumar Govindan2 Optimizing rice (Oryza sativa L.) yield and lodging resistance using MGIDI and conventional selection indices Electronic Journal of Plant Breeding smith hazel index genetic weights section modulus bending stress multicollinearity |
| title | Optimizing rice (Oryza sativa L.) yield and lodging resistance using MGIDI and conventional selection indices |
| title_full | Optimizing rice (Oryza sativa L.) yield and lodging resistance using MGIDI and conventional selection indices |
| title_fullStr | Optimizing rice (Oryza sativa L.) yield and lodging resistance using MGIDI and conventional selection indices |
| title_full_unstemmed | Optimizing rice (Oryza sativa L.) yield and lodging resistance using MGIDI and conventional selection indices |
| title_short | Optimizing rice (Oryza sativa L.) yield and lodging resistance using MGIDI and conventional selection indices |
| title_sort | optimizing rice oryza sativa l yield and lodging resistance using mgidi and conventional selection indices |
| topic | smith hazel index genetic weights section modulus bending stress multicollinearity |
| url | https://ejplantbreeding.org/index.php/EJPB/article/view/5195 |
| work_keys_str_mv | AT durgaprasadmullangie1kalaimagalthiyagarajan1manonmaniswaminathan2sritharannatarajan2andsenthilkumargovindan2 optimizingriceoryzasativalyieldandlodgingresistanceusingmgidiandconventionalselectionindices |