Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions
Seed priming refers to seed enhancement methods that stimulate seed metabolism. This study evaluated the genetic diversity of hydro priming efficacy in 27 different genotypes of rice under dry to wet soil moisture conditions. The genotypes included 21 genotypes of <i>Oryza sativa</i>, fi...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
|
| Series: | Genes |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4425/11/9/994 |
| _version_ | 1797555651320217600 |
|---|---|
| author | Yoshihiro Nakao Chiharu Sone Jun-Ichi Sakagami |
| author_facet | Yoshihiro Nakao Chiharu Sone Jun-Ichi Sakagami |
| author_sort | Yoshihiro Nakao |
| collection | DOAJ |
| description | Seed priming refers to seed enhancement methods that stimulate seed metabolism. This study evaluated the genetic diversity of hydro priming efficacy in 27 different genotypes of rice under dry to wet soil moisture conditions. The genotypes included 21 genotypes of <i>Oryza sativa</i>, five genotypes of <i>Oryza glaberrima</i>, and one genotype of NERICA (New Rice for Africa). The treated rice seeds were sown in plastic boxes under four soil moisture conditions (5%, 10%, 15%, and 20% (<i>w</i>/<i>w</i>)). The genotypes were categorized into six groups based on growth parameters using hierarchical cluster analysis. Furthermore, emergence properties were investigated by using principal component analysis based on the mean emergence time of control and primed seeds. Seed priming enhanced growth performance under the moderate dry conditions of 10% and 15% soil moisture. Meanwhile, priming efficacy was low in water stress conditions of 5% and 20% soil moisture. There were wide-ranging genotypic differences of priming efficacy under 20% soil moisture condition. Our findings indicate that the anaerobic-tolerant genotypes tend to exhibit priming efficacy under high soil moisture conditions. Furthermore, one group included all upland genotypes of <i>Oryza sativa</i>. This group originally adapted to 10% and 15% of dry conditions, and seed priming improved their features greatly. |
| first_indexed | 2024-03-10T16:50:32Z |
| format | Article |
| id | doaj.art-306df4db033c4cb7a7d80396ad5452d2 |
| institution | Directory Open Access Journal |
| issn | 2073-4425 |
| language | English |
| last_indexed | 2024-03-10T16:50:32Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Genes |
| spelling | doaj.art-306df4db033c4cb7a7d80396ad5452d22023-11-20T11:18:51ZengMDPI AGGenes2073-44252020-08-0111999410.3390/genes11090994Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture ConditionsYoshihiro Nakao0Chiharu Sone1Jun-Ichi Sakagami2Course of Science of Bioresource Production, The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, JapanDepartment of Biological production, Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi Shimoshinjo Nakano, Akita 010-0195, JapanDepartment of Agricultural Sciences and Natural Resources, Faculty of Agriculture, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, JapanSeed priming refers to seed enhancement methods that stimulate seed metabolism. This study evaluated the genetic diversity of hydro priming efficacy in 27 different genotypes of rice under dry to wet soil moisture conditions. The genotypes included 21 genotypes of <i>Oryza sativa</i>, five genotypes of <i>Oryza glaberrima</i>, and one genotype of NERICA (New Rice for Africa). The treated rice seeds were sown in plastic boxes under four soil moisture conditions (5%, 10%, 15%, and 20% (<i>w</i>/<i>w</i>)). The genotypes were categorized into six groups based on growth parameters using hierarchical cluster analysis. Furthermore, emergence properties were investigated by using principal component analysis based on the mean emergence time of control and primed seeds. Seed priming enhanced growth performance under the moderate dry conditions of 10% and 15% soil moisture. Meanwhile, priming efficacy was low in water stress conditions of 5% and 20% soil moisture. There were wide-ranging genotypic differences of priming efficacy under 20% soil moisture condition. Our findings indicate that the anaerobic-tolerant genotypes tend to exhibit priming efficacy under high soil moisture conditions. Furthermore, one group included all upland genotypes of <i>Oryza sativa</i>. This group originally adapted to 10% and 15% of dry conditions, and seed priming improved their features greatly.https://www.mdpi.com/2073-4425/11/9/994germinationcultivargenotypedroughtAfrica |
| spellingShingle | Yoshihiro Nakao Chiharu Sone Jun-Ichi Sakagami Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions Genes germination cultivar genotype drought Africa |
| title | Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions |
| title_full | Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions |
| title_fullStr | Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions |
| title_full_unstemmed | Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions |
| title_short | Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions |
| title_sort | genetic diversity of hydro priming effects on rice seed emergence and subsequent growth under different moisture conditions |
| topic | germination cultivar genotype drought Africa |
| url | https://www.mdpi.com/2073-4425/11/9/994 |
| work_keys_str_mv | AT yoshihironakao geneticdiversityofhydroprimingeffectsonriceseedemergenceandsubsequentgrowthunderdifferentmoistureconditions AT chiharusone geneticdiversityofhydroprimingeffectsonriceseedemergenceandsubsequentgrowthunderdifferentmoistureconditions AT junichisakagami geneticdiversityofhydroprimingeffectsonriceseedemergenceandsubsequentgrowthunderdifferentmoistureconditions |