Effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine-transplanting hybrid rice
In order to clarify the influence of different hill spacings and seedling numbers on dry matter accumulation and yield formation of machine-transplanting hybrid rice, two different rice varieties, F you 498 and Yixiangyou 2115 were selected as plant materials, and a randomized block experiment with...
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| Language: | English |
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Zhejiang University Press
2018-01-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2017.08.071 |
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| author | PU Shilin DENG Fei HU Hui ZHONG Xiaoyuan WANG Li LI Wu LI Shuxian LIAO Shuang REN Wanjun |
| author_facet | PU Shilin DENG Fei HU Hui ZHONG Xiaoyuan WANG Li LI Wu LI Shuxian LIAO Shuang REN Wanjun |
| author_sort | PU Shilin |
| collection | DOAJ |
| description | In order to clarify the influence of different hill spacings and seedling numbers on dry matter accumulation and yield formation of machine-transplanting hybrid rice, two different rice varieties, F you 498 and Yixiangyou 2115 were selected as plant materials, and a randomized block experiment with three replicates was conducted to analyze the effects of field collocation pattern on tillers, dry matter production, yield and its component factors of rice. Based on the production practice, the reasonable seedling rate of hybrid rice is 0.42 million per hectare in Sichuan Province, and three field collocation patterns were set as: 1) high hills with low seedlings, 1.5 seedlings transplanted at 30 cm × 12 cm spacing; 2) middle hills with middle seedlings, 2.1 seedlings transplanted at 30 cm × 17 cm spacing; 3) low hills with high seedlings, 2.9 seedlings transplanted at 30 cm × 23 cm spacing. The results showed that the tiller numbers of single hill and population increased first and then decreased with the rice development process. The tiller number of single hill in every development period improved as the hill spacing increased, and the earring- tiller percentage of Yixiangyou 2115 was higher in low hills with high seedlings. The leaf area of single hill and dry matter mass of rice increased as the spacing enlarged, and Yixiangyou 2115 had larger leaf area and dry matter mass of single hill in low hills with high seedlings. Under the three different field collocation patterns, the differences of tiller numbers, dry matter accumulation and transportation, and yield were not significant, which indicated that the decrease of hill numbers per unit area did not influence the productive ear numbers and yield with the same basic seedlings. Reduce hills but not reduce seedlings, and low hills with high seedlings can also achieve high and stable yield. |
| format | Article |
| id | doaj-art-94e85f6202bd4a57a8307ce04f09fea9 |
| institution | Matheson Library |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Zhejiang University Press |
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| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-94e85f6202bd4a57a8307ce04f09fea92025-08-01T05:29:36ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552018-01-0144213010.3785/j.issn.1008-9209.2017.08.07110089209Effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine-transplanting hybrid ricePU ShilinDENG FeiHU HuiZHONG XiaoyuanWANG LiLI WuLI ShuxianLIAO ShuangREN WanjunIn order to clarify the influence of different hill spacings and seedling numbers on dry matter accumulation and yield formation of machine-transplanting hybrid rice, two different rice varieties, F you 498 and Yixiangyou 2115 were selected as plant materials, and a randomized block experiment with three replicates was conducted to analyze the effects of field collocation pattern on tillers, dry matter production, yield and its component factors of rice. Based on the production practice, the reasonable seedling rate of hybrid rice is 0.42 million per hectare in Sichuan Province, and three field collocation patterns were set as: 1) high hills with low seedlings, 1.5 seedlings transplanted at 30 cm × 12 cm spacing; 2) middle hills with middle seedlings, 2.1 seedlings transplanted at 30 cm × 17 cm spacing; 3) low hills with high seedlings, 2.9 seedlings transplanted at 30 cm × 23 cm spacing. The results showed that the tiller numbers of single hill and population increased first and then decreased with the rice development process. The tiller number of single hill in every development period improved as the hill spacing increased, and the earring- tiller percentage of Yixiangyou 2115 was higher in low hills with high seedlings. The leaf area of single hill and dry matter mass of rice increased as the spacing enlarged, and Yixiangyou 2115 had larger leaf area and dry matter mass of single hill in low hills with high seedlings. Under the three different field collocation patterns, the differences of tiller numbers, dry matter accumulation and transportation, and yield were not significant, which indicated that the decrease of hill numbers per unit area did not influence the productive ear numbers and yield with the same basic seedlings. Reduce hills but not reduce seedlings, and low hills with high seedlings can also achieve high and stable yield.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2017.08.071field collocation patternhill spacingseedling number per hillmachine-transplantingricedry matter accumulationyield |
| spellingShingle | PU Shilin DENG Fei HU Hui ZHONG Xiaoyuan WANG Li LI Wu LI Shuxian LIAO Shuang REN Wanjun Effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine-transplanting hybrid rice 浙江大学学报. 农业与生命科学版 field collocation pattern hill spacing seedling number per hill machine-transplanting rice dry matter accumulation yield |
| title | Effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine-transplanting hybrid rice |
| title_full | Effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine-transplanting hybrid rice |
| title_fullStr | Effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine-transplanting hybrid rice |
| title_full_unstemmed | Effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine-transplanting hybrid rice |
| title_short | Effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine-transplanting hybrid rice |
| title_sort | effects of different hill spacings and seedling numbers per hill on dry matter production and yield of machine transplanting hybrid rice |
| topic | field collocation pattern hill spacing seedling number per hill machine-transplanting rice dry matter accumulation yield |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2017.08.071 |
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