Effects of Solar Radiation on Dry Matter Distribution and Root Morphology of High Yielding Maize Cultivars
The root system connects the plant with the soil, which is a key factor in determining the utilization of soil resources and plant growth potential. Solar radiation can change maize shoot and root growth and affect grain formation. In this study, the effects of different solar radiation conditions o...
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MDPI AG
2022-02-01
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| 丛编: | Agriculture |
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| 在线阅读: | https://www.mdpi.com/2077-0472/12/2/299 |
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| author | Xiaoxia Guo Yunshan Yang Huifang Liu Guangzhou Liu Wanmao Liu Yonghong Wang Rulang Zhao Bo Ming Ruizhi Xie Keru Wang Shaokun Li Peng Hou |
| author_facet | Xiaoxia Guo Yunshan Yang Huifang Liu Guangzhou Liu Wanmao Liu Yonghong Wang Rulang Zhao Bo Ming Ruizhi Xie Keru Wang Shaokun Li Peng Hou |
| author_sort | Xiaoxia Guo |
| collection | DOAJ |
| description | The root system connects the plant with the soil, which is a key factor in determining the utilization of soil resources and plant growth potential. Solar radiation can change maize shoot and root growth and affect grain formation. In this study, the effects of different solar radiation conditions on root morphology of three maize cultivars XY335, ZD958 and DH618 and their quantitative relationships were studied by conducting shading experiments. This study was conducted in maize high yield region of Qitai and Yinchuan, China, in 2018 and 2019. The planting densities were 7.5 × 10<sup>4</sup> (D1) and 12 × 10<sup>4</sup> (D2) plants ha<sup>−1</sup>. The shading levels were natural light (CK), shading 15% (S1), 30% (S2) and 50% (S3). The results showed that maize responded to the decreased solar radiation through the increase in ratio of shoot dry weight (SWR) to whole plant dry weight and the decrease in ratio of root dry weight (RWR) to whole plant dry weight. As the solar radiation decreased, the root length density (RLD), root surface area (RSA), average root diameter (ARD) and root length ratio (RLR) decreased, while the specific root length (SRL) increased. With 100 MJ m<sup>−2</sup> decrease in solar radiation, the RWR, RLD, RSA and RLR each decreased by 1.47%, 0.5 mm cm<sup>−3</sup>,0.4 m m<sup>−2</sup> and 0. 19 m g<sup>−1</sup>, respectively. Among the cultivars, the changes of DH618 were the fastest followed by XY335 and ZD958 but DH618 maintained the largest root system under any solar radiation condition. After the decrease of solar radiation, RWR, RLD and RLR were significantly positively correlated with the yield. This indicated that large root systems were conducive to the rapid response to decreased solar radiation and important for achieving stable and high yield. Maize cultivars with these type of root systems should be recommended to better adapt low solar radiation induced by regional variation or climate change. |
| first_indexed | 2024-03-09T22:51:59Z |
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| id | doaj.art-13f89b2287e34ee09d312759a48d7f82 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-09T22:51:59Z |
| publishDate | 2022-02-01 |
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| series | Agriculture |
| spelling | doaj.art-13f89b2287e34ee09d312759a48d7f822023-11-23T18:18:00ZengMDPI AGAgriculture2077-04722022-02-0112229910.3390/agriculture12020299Effects of Solar Radiation on Dry Matter Distribution and Root Morphology of High Yielding Maize CultivarsXiaoxia Guo0Yunshan Yang1Huifang Liu2Guangzhou Liu3Wanmao Liu4Yonghong Wang5Rulang Zhao6Bo Ming7Ruizhi Xie8Keru Wang9Shaokun Li10Peng Hou11The Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi 832000, ChinaThe Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi 832000, ChinaCollege of Agronomy, Ningxia University, Yinchuan 750021, ChinaKey Laboratory of Crop Physiology and Ecology, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, ChinaCollege of Agronomy, Ningxia University, Yinchuan 750021, ChinaInstitute of Crop Sciences, Ningxia Academy of Agricultural and Forestry Sciences, Yongning, Yinchuan 750105, ChinaInstitute of Crop Sciences, Ningxia Academy of Agricultural and Forestry Sciences, Yongning, Yinchuan 750105, ChinaKey Laboratory of Crop Physiology and Ecology, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, ChinaKey Laboratory of Crop Physiology and Ecology, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, ChinaKey Laboratory of Crop Physiology and Ecology, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, ChinaThe Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi 832000, ChinaKey Laboratory of Crop Physiology and Ecology, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing 100081, ChinaThe root system connects the plant with the soil, which is a key factor in determining the utilization of soil resources and plant growth potential. Solar radiation can change maize shoot and root growth and affect grain formation. In this study, the effects of different solar radiation conditions on root morphology of three maize cultivars XY335, ZD958 and DH618 and their quantitative relationships were studied by conducting shading experiments. This study was conducted in maize high yield region of Qitai and Yinchuan, China, in 2018 and 2019. The planting densities were 7.5 × 10<sup>4</sup> (D1) and 12 × 10<sup>4</sup> (D2) plants ha<sup>−1</sup>. The shading levels were natural light (CK), shading 15% (S1), 30% (S2) and 50% (S3). The results showed that maize responded to the decreased solar radiation through the increase in ratio of shoot dry weight (SWR) to whole plant dry weight and the decrease in ratio of root dry weight (RWR) to whole plant dry weight. As the solar radiation decreased, the root length density (RLD), root surface area (RSA), average root diameter (ARD) and root length ratio (RLR) decreased, while the specific root length (SRL) increased. With 100 MJ m<sup>−2</sup> decrease in solar radiation, the RWR, RLD, RSA and RLR each decreased by 1.47%, 0.5 mm cm<sup>−3</sup>,0.4 m m<sup>−2</sup> and 0. 19 m g<sup>−1</sup>, respectively. Among the cultivars, the changes of DH618 were the fastest followed by XY335 and ZD958 but DH618 maintained the largest root system under any solar radiation condition. After the decrease of solar radiation, RWR, RLD and RLR were significantly positively correlated with the yield. This indicated that large root systems were conducive to the rapid response to decreased solar radiation and important for achieving stable and high yield. Maize cultivars with these type of root systems should be recommended to better adapt low solar radiation induced by regional variation or climate change.https://www.mdpi.com/2077-0472/12/2/299solar radiationmaizeyieldshootroot morphologycultivar |
| spellingShingle | Xiaoxia Guo Yunshan Yang Huifang Liu Guangzhou Liu Wanmao Liu Yonghong Wang Rulang Zhao Bo Ming Ruizhi Xie Keru Wang Shaokun Li Peng Hou Effects of Solar Radiation on Dry Matter Distribution and Root Morphology of High Yielding Maize Cultivars Agriculture solar radiation maize yield shoot root morphology cultivar |
| title | Effects of Solar Radiation on Dry Matter Distribution and Root Morphology of High Yielding Maize Cultivars |
| title_full | Effects of Solar Radiation on Dry Matter Distribution and Root Morphology of High Yielding Maize Cultivars |
| title_fullStr | Effects of Solar Radiation on Dry Matter Distribution and Root Morphology of High Yielding Maize Cultivars |
| title_full_unstemmed | Effects of Solar Radiation on Dry Matter Distribution and Root Morphology of High Yielding Maize Cultivars |
| title_short | Effects of Solar Radiation on Dry Matter Distribution and Root Morphology of High Yielding Maize Cultivars |
| title_sort | effects of solar radiation on dry matter distribution and root morphology of high yielding maize cultivars |
| topic | solar radiation maize yield shoot root morphology cultivar |
| url | https://www.mdpi.com/2077-0472/12/2/299 |
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