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      2. 播期對湖北省粳麥生產區粳稻生育期、產量及溫光資源利用的影響
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        國家重點研發計劃項目(2018YFD0301305; 2017YFD0301402; 2016YFD0300503); 湖北省技術創新專項重大項目(2018ABA078); 湖北省自然科學基金項目(2017CFB336); 湖北省農業科學院青年基金項目(2018NKYJJ01)


        Effects of sowing date on growth period,yield and utilization of temperature and light resources of japonica in japonica wheat production areas of Hubei Province
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          摘要:

          為推進湖北省“秈改粳”,明確3個不同類型粳稻在湖北省粳麥生產區的生態適應性,以甬優4949、鄂香2號等5個粳稻品種為材料,在機插條件下,設置4個播期,研究播期對3個類型粳稻產量、生育期、品質及溫光資源利用的影響。結果表明:供試3個類型粳稻隨著播期推遲,其生育期縮短,各生育進程加快,產量不同程度下降,全生育期有效積溫利用率和日照時數利用率均呈下降趨勢。根據3個粳麥生產區溫光資源條件和小麥騰茬時間,初步確定了3個粳麥區適宜粳稻品種類型和播種期,襄陽適宜選用的粳稻品種類型為早熟中粳和生育期較短的中熟中粳;孝昌適宜選用的品種類型為早熟中粳和中熟中粳;江陵適宜選用的品種類型為早熟中粳、中熟中粳和早熟晚粳。

          Abstract:

          Four sowing dates were set under machine transplantation and five japonica varieties were used to study the yield,growth period,quality,utilization of temperature and light resources of japonica rice varieties,clarify the ecological adaptability of japonica varieties in different japonica wheat production areas of Hubei Province and promote “transition from cultivating indica to cultivating japonica in Hubei Province” The results showed that the growth period of the varieties tested was shortened and the growth process was accelerated when the sowing date was postponed. The yield decreased to varying degrees. The utilization rate of accumulated temperature and the utilization rate of sunshine hours in the whole growing period showed a downward trend. The suitable types and sowing dates of three japonica areas in the three japonica wheat areas were preliminarily determined based on the conditions of temperature and light resource and the time of wheat stubble removal in the three japonica wheat production areas. The suitable japonica varieties in Xiangyang are early/intermediate maturing medium japonica with short growth period. The suitable varieties in Xiaochang are early/intermediate maturing medium japonica. The suitable varieties in Jiangling are early/intermediate maturing medium japonica and early maturing late japonica. They can exert the best yield potential.

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        汪本福,程建平,李陽,張枝盛,楊曉龍,潘高峰,陳展鵬,李進蘭,王晴芳.播期對湖北省粳麥生產區粳稻生育期、產量及溫光資源利用的影響[J].華中農業大學學報,2020,39(5):68-75

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        • 收稿日期:2019-10-20
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        • 在線發布日期: 2020-10-05
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