Performance of Doubled Haploid Elite Rice (Oryza sativa L.) Germplasm for Grain Yield and Associated Traits in Harare, Zimbabwe
A field experiment was conducted in 2018/2019 growing season at the Scientific Industrial Research and Development Center under irrigated conditions using the simple alpha lattice (77) design, with three replications. The objective of the study was to determine the performance of 44 elite rice lines...
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| Language: | English |
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Hindawi
2023
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| Online Access: | https://cris.library.msu.ac.zw//handle/11408/5442 https://doi.org/10.1155/2022/7393896 |
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| author | Lovemore Chitanda Munyaradzi Mativavarira Pepukai Manjeru Kyung-Ho Kang Jean K. Nzuma Trymore Kamunhukamwe Tendai A. Hove Leonard Madzingaidzo |
| author2 | Department of Agronomy and Horticulture, Midlands State University, Gweru, Zimbabwe; Scientific Industrial Research and Development Center (SIRDC), Hatcliff, Harare, Zimbabwe |
| author_facet | Department of Agronomy and Horticulture, Midlands State University, Gweru, Zimbabwe; Scientific Industrial Research and Development Center (SIRDC), Hatcliff, Harare, Zimbabwe Lovemore Chitanda Munyaradzi Mativavarira Pepukai Manjeru Kyung-Ho Kang Jean K. Nzuma Trymore Kamunhukamwe Tendai A. Hove Leonard Madzingaidzo |
| author_sort | Lovemore Chitanda |
| collection | DSpace |
| description | A field experiment was conducted in 2018/2019 growing season at the Scientific Industrial Research and Development Center under irrigated conditions using the simple alpha lattice (77) design, with three replications. The objective of the study was to determine the performance of 44 elite rice lines that were selected and shared from elite doubled haploid germplasm and five cultivars were used as checks. All evaluated genotypes exhibited significant variation in the traits measured except for number of grains/panicle, total tillers/plant, and effective tillers/plant. Elite line 70462 was found to be the highest yielding, with yield advantage of 66% over the high yielding local check (Nerica 7). High values for broad sense heritability were recorded for days to 50% heading, panicle length, culm length, number of filled grains/panicle, 1000-grain weight, grain length, grain shape, and grain yield and indicated lesser influence of environment in expression of these traits, hence amenable to simple selection. Correlation analysis revealed that grain yield manifested significantly positive correlation with filled grains/panicle contributing the highest correlation (r = 0.784), followed by culm length (r = 0.605), spikelet fertility/panicle (r = 0.677), grain length (r = 0.551), 1000-grain weight (r = 0.518), panicle length (r = 0.449), and number of grains/panicle (r = 0.328). Based on grain yield, number of filled grains/panicle and spikelet fertility/panicle, panicle length, and earliness, lines 70462, 60143, 70383, Arica 3, Sahel 177, 6040, 70537, 60409, and 70476 had the best performance. Selection of these traits would be more effective for yield improvement in rice and these promising lines could be used in the varietal development and can be tested in multilocational trials and on-farm trials in Zimbabwe with the possibility of release and commercialization. |
| format | research article |
| id | ir-11408-5442 |
| institution | My University |
| language | English |
| publishDate | 2023 |
| publisher | Hindawi |
| record_format | dspace |
| spelling | ir-11408-54422023-03-21T15:56:12Z Performance of Doubled Haploid Elite Rice (Oryza sativa L.) Germplasm for Grain Yield and Associated Traits in Harare, Zimbabwe Lovemore Chitanda Munyaradzi Mativavarira Pepukai Manjeru Kyung-Ho Kang Jean K. Nzuma Trymore Kamunhukamwe Tendai A. Hove Leonard Madzingaidzo Department of Agronomy and Horticulture, Midlands State University, Gweru, Zimbabwe; Scientific Industrial Research and Development Center (SIRDC), Hatcliff, Harare, Zimbabwe Scientific Industrial Research and Development Center (SIRDC), Hatcliff, Harare, Zimbabwe; Marondera University of Agricultural Science and Technology (MUAST), Marondera, Zimbabwe Department of Agronomy and Horticulture, Midlands State University, Gweru, Zimbabwe Africa Rice Center, Saint Louis, Senegal and National Institute of Crop Science, Rural Development Administration (RDA), Seonghwan, Republic of Korea Scientific Industrial Research and Development Center (SIRDC), Hatcliff, Harare, Zimbabwe Scientific Industrial Research and Development Center (SIRDC), Hatcliff, Harare, Zimbabwe Scientific Industrial Research and Development Center (SIRDC), Hatcliff, Harare, Zimbabwe; Mukushi Seeds, Mount Hampden, Harare, Zimbabwe Scientific Industrial Research and Development Center (SIRDC), Hatcliff, Harare, Zimbabwe Elite Rice Oryza sativa L. Doubled haploid germplasm A field experiment was conducted in 2018/2019 growing season at the Scientific Industrial Research and Development Center under irrigated conditions using the simple alpha lattice (77) design, with three replications. The objective of the study was to determine the performance of 44 elite rice lines that were selected and shared from elite doubled haploid germplasm and five cultivars were used as checks. All evaluated genotypes exhibited significant variation in the traits measured except for number of grains/panicle, total tillers/plant, and effective tillers/plant. Elite line 70462 was found to be the highest yielding, with yield advantage of 66% over the high yielding local check (Nerica 7). High values for broad sense heritability were recorded for days to 50% heading, panicle length, culm length, number of filled grains/panicle, 1000-grain weight, grain length, grain shape, and grain yield and indicated lesser influence of environment in expression of these traits, hence amenable to simple selection. Correlation analysis revealed that grain yield manifested significantly positive correlation with filled grains/panicle contributing the highest correlation (r = 0.784), followed by culm length (r = 0.605), spikelet fertility/panicle (r = 0.677), grain length (r = 0.551), 1000-grain weight (r = 0.518), panicle length (r = 0.449), and number of grains/panicle (r = 0.328). Based on grain yield, number of filled grains/panicle and spikelet fertility/panicle, panicle length, and earliness, lines 70462, 60143, 70383, Arica 3, Sahel 177, 6040, 70537, 60409, and 70476 had the best performance. Selection of these traits would be more effective for yield improvement in rice and these promising lines could be used in the varietal development and can be tested in multilocational trials and on-farm trials in Zimbabwe with the possibility of release and commercialization. 2022 1 9 2023-03-21T15:56:11Z 2023-03-21T15:56:11Z 2022-04-09 research article https://cris.library.msu.ac.zw//handle/11408/5442 https://doi.org/10.1155/2022/7393896 en #PLACEHOLDER_PARENT_METADATA_VALUE# Rural Development Administration (RDA) of Korea and Scientific and Industrial Research and Development Center (SIRDC) Advances in Agriculture 2314-7539 #PLACEHOLDER_PARENT_METADATA_VALUE# open Hindawi |
| spellingShingle | Elite Rice Oryza sativa L. Doubled haploid germplasm Lovemore Chitanda Munyaradzi Mativavarira Pepukai Manjeru Kyung-Ho Kang Jean K. Nzuma Trymore Kamunhukamwe Tendai A. Hove Leonard Madzingaidzo Performance of Doubled Haploid Elite Rice (Oryza sativa L.) Germplasm for Grain Yield and Associated Traits in Harare, Zimbabwe |
| title | Performance of Doubled Haploid Elite Rice (Oryza sativa L.) Germplasm for Grain Yield and Associated Traits in Harare, Zimbabwe |
| title_full | Performance of Doubled Haploid Elite Rice (Oryza sativa L.) Germplasm for Grain Yield and Associated Traits in Harare, Zimbabwe |
| title_fullStr | Performance of Doubled Haploid Elite Rice (Oryza sativa L.) Germplasm for Grain Yield and Associated Traits in Harare, Zimbabwe |
| title_full_unstemmed | Performance of Doubled Haploid Elite Rice (Oryza sativa L.) Germplasm for Grain Yield and Associated Traits in Harare, Zimbabwe |
| title_short | Performance of Doubled Haploid Elite Rice (Oryza sativa L.) Germplasm for Grain Yield and Associated Traits in Harare, Zimbabwe |
| title_sort | performance of doubled haploid elite rice (oryza sativa l.) germplasm for grain yield and associated traits in harare, zimbabwe |
| topic | Elite Rice Oryza sativa L. Doubled haploid germplasm |
| url | https://cris.library.msu.ac.zw//handle/11408/5442 https://doi.org/10.1155/2022/7393896 |
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