Study on combining ability and heterosis for yield and nutritional traits in rice (Oryza sativa L.)
Rice (Oryza sativa L.) is the staple food for more than 50% of the world’s population. Micronutrient malnutrition is a significant issue affecting approximately 2 billion people globally with severe levels of hunger. Fifteen hybrids derived through 6 x 6 half diallel mating were evaluated along...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2023-09-01
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| Series: | Electronic Journal of Plant Breeding |
| Subjects: | |
| Online Access: | https://ejplantbreeding.org/index.php/EJPB/article/view/4935 |
| _version_ | 1827779733237006336 |
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| author | K. Deepika1 , R. Manimaran2*, R. Pushpa2 , K. Sathya Bama3 , C. Umamageswari4 and R. Suresh5* |
| author_facet | K. Deepika1 , R. Manimaran2*, R. Pushpa2 , K. Sathya Bama3 , C. Umamageswari4 and R. Suresh5* |
| author_sort | K. Deepika1 , R. Manimaran2*, R. Pushpa2 , K. Sathya Bama3 , C. Umamageswari4 and R. Suresh5* |
| collection | DOAJ |
| description | Rice (Oryza sativa L.) is the staple food for more than 50% of the world’s population. Micronutrient malnutrition is a
significant issue affecting approximately 2 billion people globally with severe levels of hunger. Fifteen hybrids derived
through 6 x 6 half diallel mating were evaluated along with the six parents in a randomized block design at Tamil Nadu
Rice Research Institute, Aduthurai during Kharif, 2022. Analysis of variance showed significant differences among the
genotypes for all the traits except for the flag leaf width. The GCA effects of CO54 and Kalanamak were significant
for most of the quantitative traits including grain yield, indicating the usefulness of these two genotypes for improving
yield contributing traits. The parents such as Kalanamak and Chinkinikar registered high mean values for Fe and
Zn and therefore these two parents can be exploited to develop Fe and Zn rich high yielding varieties. Analysis of
specific combining ability and heterosis per se of the hybrids indicated that the crosses viz., ADT56/Kalanamak, CO54/
Kalanamak and CO54/Chinkinikar were best hybrids for improving yield as well as nutritional traits. |
| first_indexed | 2024-03-11T14:52:19Z |
| format | Article |
| id | doaj.art-e6019f0cc5ac4982a205fc4f3d5120ec |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-03-11T14:52:19Z |
| publishDate | 2023-09-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-e6019f0cc5ac4982a205fc4f3d5120ec2023-10-30T08:59:32ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2023-09-011431135 114610.37992/2023.1403.144Study on combining ability and heterosis for yield and nutritional traits in rice (Oryza sativa L.)K. Deepika1 , R. Manimaran2*, R. Pushpa2 , K. Sathya Bama3 , C. Umamageswari4 and R. Suresh5*01 Department of Genetics and Plant Breeding and Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641003, India 2 Tamil Nadu Rice Research Institute, Aduthurai-612101, India. 3 Department of Soil Science &Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore-641003, India 4 Department of Agronomy, Agricultural College and Research Institute, Chettinad-630102, India 5 Department of Rice, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641003, India *E-Mail: manimaran@tnau.ac.inRice (Oryza sativa L.) is the staple food for more than 50% of the world’s population. Micronutrient malnutrition is a significant issue affecting approximately 2 billion people globally with severe levels of hunger. Fifteen hybrids derived through 6 x 6 half diallel mating were evaluated along with the six parents in a randomized block design at Tamil Nadu Rice Research Institute, Aduthurai during Kharif, 2022. Analysis of variance showed significant differences among the genotypes for all the traits except for the flag leaf width. The GCA effects of CO54 and Kalanamak were significant for most of the quantitative traits including grain yield, indicating the usefulness of these two genotypes for improving yield contributing traits. The parents such as Kalanamak and Chinkinikar registered high mean values for Fe and Zn and therefore these two parents can be exploited to develop Fe and Zn rich high yielding varieties. Analysis of specific combining ability and heterosis per se of the hybrids indicated that the crosses viz., ADT56/Kalanamak, CO54/ Kalanamak and CO54/Chinkinikar were best hybrids for improving yield as well as nutritional traits.https://ejplantbreeding.org/index.php/EJPB/article/view/4935half diallelhybridsgca and scagrain yieldnutritional traits |
| spellingShingle | K. Deepika1 , R. Manimaran2*, R. Pushpa2 , K. Sathya Bama3 , C. Umamageswari4 and R. Suresh5* Study on combining ability and heterosis for yield and nutritional traits in rice (Oryza sativa L.) Electronic Journal of Plant Breeding half diallel hybrids gca and sca grain yield nutritional traits |
| title | Study on combining ability and heterosis for yield and nutritional traits in rice (Oryza sativa L.) |
| title_full | Study on combining ability and heterosis for yield and nutritional traits in rice (Oryza sativa L.) |
| title_fullStr | Study on combining ability and heterosis for yield and nutritional traits in rice (Oryza sativa L.) |
| title_full_unstemmed | Study on combining ability and heterosis for yield and nutritional traits in rice (Oryza sativa L.) |
| title_short | Study on combining ability and heterosis for yield and nutritional traits in rice (Oryza sativa L.) |
| title_sort | study on combining ability and heterosis for yield and nutritional traits in rice oryza sativa l |
| topic | half diallel hybrids gca and sca grain yield nutritional traits |
| url | https://ejplantbreeding.org/index.php/EJPB/article/view/4935 |
| work_keys_str_mv | AT kdeepika1rmanimaran2rpushpa2ksathyabama3cumamageswari4andrsuresh5 studyoncombiningabilityandheterosisforyieldandnutritionaltraitsinriceoryzasatival |