Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice

Abstract Genetic improvement of rice for grain micronutrients, viz., iron (Fe) and zinc (Zn) content is one of the important breeding objectives, in addition to yield improvement under the irrigated and aerobic ecosystems. In view of developing genetic resources for aerobic conditions, line (L) × te...

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Autores principales:	G. Anusha, D. Sanjeeva Rao, V. Jaldhani, P. Beulah, C. N. Neeraja, C. Gireesh, M. S. Anantha, K. Suneetha, R. Santhosha, A. S. Hari Prasad, R. M. Sundaram, M. Sheshu Madhav, A. Fiyaz, P. Brajendra, M. D. Tuti, M. H. V. Bhave, K. V. Radha Krishna, J. Ali, D. Subrahmanyam, P. Senguttuvel
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e8aeddf9f42d495cb3f9f710f8f25db0
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spelling	oai:doaj.org-article:e8aeddf9f42d495cb3f9f710f8f25db02021-12-02T16:49:46ZGrain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice10.1038/s41598-021-90038-42045-2322https://doaj.org/article/e8aeddf9f42d495cb3f9f710f8f25db02021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90038-4https://doaj.org/toc/2045-2322Abstract Genetic improvement of rice for grain micronutrients, viz., iron (Fe) and zinc (Zn) content is one of the important breeding objectives, in addition to yield improvement under the irrigated and aerobic ecosystems. In view of developing genetic resources for aerobic conditions, line (L) × tester (T) analysis was conducted with four restorers, four CMS lines and 16 hybrids. Both hybrids and parental lines were evaluated in irrigated and aerobic field conditions for grain yield, grain Fe and Zn content. General Combining Ability (GCA) effects of parents and Specific Combining Ability (SCA) effects of hybrids were observed to be contrasting for the micronutrient content in both the growing environments. The grain Fe and Zn content for parental lines were negatively correlated with grain yield in both the contrasting growing conditions. However, hybrids exhibited positive correlation for grain Fe and Zn with grain yield under limited water conditions. The magnitude of SCA mean squares was much higher than GCA mean squares implying preponderance of dominance gene action and also role of complementary non-allelic gene(s) interaction of parents and suitability of hybrids to the aerobic system. The testers HHZ12-SAL8-Y1-SAL1 (T1) and HHZ17-Y16-Y3-Y2 (T2) were identified as good combiners for grain Zn content under irrigated and aerobic conditions respectively.G. AnushaD. Sanjeeva RaoV. JaldhaniP. BeulahC. N. NeerajaC. GireeshM. S. AnanthaK. SuneethaR. SanthoshaA. S. Hari PrasadR. M. SundaramM. Sheshu MadhavA. FiyazP. BrajendraM. D. TutiM. H. V. BhaveK. V. Radha KrishnaJ. AliD. SubrahmanyamP. SenguttuvelNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q G. Anusha D. Sanjeeva Rao V. Jaldhani P. Beulah C. N. Neeraja C. Gireesh M. S. Anantha K. Suneetha R. Santhosha A. S. Hari Prasad R. M. Sundaram M. Sheshu Madhav A. Fiyaz P. Brajendra M. D. Tuti M. H. V. Bhave K. V. Radha Krishna J. Ali D. Subrahmanyam P. Senguttuvel Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice
description	Abstract Genetic improvement of rice for grain micronutrients, viz., iron (Fe) and zinc (Zn) content is one of the important breeding objectives, in addition to yield improvement under the irrigated and aerobic ecosystems. In view of developing genetic resources for aerobic conditions, line (L) × tester (T) analysis was conducted with four restorers, four CMS lines and 16 hybrids. Both hybrids and parental lines were evaluated in irrigated and aerobic field conditions for grain yield, grain Fe and Zn content. General Combining Ability (GCA) effects of parents and Specific Combining Ability (SCA) effects of hybrids were observed to be contrasting for the micronutrient content in both the growing environments. The grain Fe and Zn content for parental lines were negatively correlated with grain yield in both the contrasting growing conditions. However, hybrids exhibited positive correlation for grain Fe and Zn with grain yield under limited water conditions. The magnitude of SCA mean squares was much higher than GCA mean squares implying preponderance of dominance gene action and also role of complementary non-allelic gene(s) interaction of parents and suitability of hybrids to the aerobic system. The testers HHZ12-SAL8-Y1-SAL1 (T1) and HHZ17-Y16-Y3-Y2 (T2) were identified as good combiners for grain Zn content under irrigated and aerobic conditions respectively.
format	article
author	G. Anusha D. Sanjeeva Rao V. Jaldhani P. Beulah C. N. Neeraja C. Gireesh M. S. Anantha K. Suneetha R. Santhosha A. S. Hari Prasad R. M. Sundaram M. Sheshu Madhav A. Fiyaz P. Brajendra M. D. Tuti M. H. V. Bhave K. V. Radha Krishna J. Ali D. Subrahmanyam P. Senguttuvel
author_facet	G. Anusha D. Sanjeeva Rao V. Jaldhani P. Beulah C. N. Neeraja C. Gireesh M. S. Anantha K. Suneetha R. Santhosha A. S. Hari Prasad R. M. Sundaram M. Sheshu Madhav A. Fiyaz P. Brajendra M. D. Tuti M. H. V. Bhave K. V. Radha Krishna J. Ali D. Subrahmanyam P. Senguttuvel
author_sort	G. Anusha
title	Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice
title_short	Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice
title_full	Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice
title_fullStr	Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice
title_full_unstemmed	Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice
title_sort	grain fe and zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e8aeddf9f42d495cb3f9f710f8f25db0
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Grain Fe and Zn content, heterosis, combining ability and its association with grain yield in irrigated and aerobic rice

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