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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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        1.農業農村部華中地區作物栽培科學觀測實驗站/糧食作物種質與遺傳改良湖北省重點實驗室;2.襄陽市農業科學院

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        國家重點研發計劃項目(2018YFD0301304);國家重點研發計劃項目(2016YFD0300503);國家重點研發計劃項目(2017YFD0301402)國家重點研發計劃項目(2018YFD0301305);湖北省技術創新重大項目(2018ABA078)


        Effects of Sowing Date on Growth Period, Yield and Utilization of Temperature and Light Resources of Japonica Rice in Different Japonica Wheat Production Areas in Hubei Province
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        1.Key Lab of Huazhong Crop Production,Physiology and Ecology of Ministry of Agriculture China/Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement;2.Xiangyang Academy of Agricultural Sciences,Xiangyang

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          摘要:

          為推進湖北省“秈改粳”,明確三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,研究播期對三個類型粳稻產量、生育期、品質及溫光資源利用的影響。結果表明:供試三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,均可發揮最佳產量潛力。

          Abstract:

          In order to promote "indica to japonica" in Hubei Province, Five japonica rice varieties were used as materials, and four sowing dates were set under the condition of machine transplantation to study the yield, growth period, quality, utilization of temperature and light resources of Japonica Rice varieties for clarify the ecological adaptability of different types of Japonica Rice Varieties in different japonica wheat production areas in Hubei Province. The results showed that as the sowing date was postponed, the growth period of the tested varieties was shortened and the growth process was accelerated. Except for Yongyou 4949 in Jiangling, the yield decreased to different degrees, and the utilization rate of effective accumulated temperature and sunshine hours utilization rate showed a downward trend during the whole growth period. According to the conditions of temperature and light resources and the time of wheat stubble removal in the three ecological regions, the suitable japonica rice varieties and sowing dates are preliminarily determined. The suitable japonica rice varieties are early maturing medium japonica rice and medium maturing medium japonica rice with short growth period in Xiangyang. The varieties suitable are early maturing medium japonica and medium maturing medium japonica in Xiaochang. The varieties suitable are early maturing medium japonica, medium maturing medium japonica and early maturing late japonica, which can all exert the best yield potential in Jiangling.

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        • 收稿日期:2019-09-12
        • 最后修改日期:2019-12-29
        • 錄用日期:2020-05-06
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