【摘要】：本文在試驗基礎(chǔ)上,利用統(tǒng)計分析和模型模擬的方法,分析了湖北省一季中稻秈改粳氣候資源利用率、高溫?zé)岷偷蜏乩浜︼L(fēng)險變化,分析了湖北省一季中稻秈改粳適宜品種、適宜播期,提出了若干建議。主要結(jié)論有:(1)湖北省一季秈改粳能進(jìn)一步提高氣候資源利用率;(2)秈改粳后抽穗開花期遭遇高溫?zé)岷Φ娘L(fēng)險增加、低溫冷害風(fēng)險降低;(3)在中稻供試品種中,甬優(yōu)1540(秈粳雜交)是秈改粳最適宜的品種,熱粳優(yōu)35、中稻1號在各生態(tài)區(qū)適應(yīng)性均不如甬優(yōu)系列;(4)北部地區(qū)一季粳稻播期應(yīng)安排在4月下旬,南部地區(qū)播期安排在5月上中旬,能保證80%的年份抽穗一開花避開高溫?zé)岷Ω唢L(fēng)險期。
[Abstract]:On the basis of the experiment, using statistical analysis and model simulation, this paper analyzed the climate resource utilization ratio, the risk of high temperature heat damage and low temperature chilling injury, and analyzed the suitable variety of one season medium indica rice to japonica rice in Hubei province. Some suggestions are put forward for suitable sowing time. The main conclusions are as follows: (1) the utilization rate of climatic resources can be further improved by the transformation of one-season indica to japonica rice in Hubei Province; (2) the risk of high temperature heat damage and low temperature chilling injury in flowering stage after indica rice transformation from japonica rice to japonica rice is increased, and (3) the risk of low temperature chilling injury is decreased in medium rice varieties. Yongyou 1540 (indica japonica hybrid) is the most suitable indica to japonica variety, Rejing you 35 and Zhongdao 1 are not as adaptable as Yongyou series in all ecological regions. (4) the sowing date of japonica rice in the first season in the northern region should be arranged in late April, and the sowing date in the southern region should be arranged in the first half of May. It can guarantee 80% year heading and flowering to avoid high temperature heat damage and high risk period.
【作者單位】： 武漢區(qū)域氣候中心;華中農(nóng)業(yè)大學(xué)植物科學(xué)技術(shù)學(xué)院;湖北省氣象局;武漢農(nóng)業(yè)氣象試驗站;
【基金】：湖北省氣象局基金項目(2013Z01) 公益性行業(yè)(氣象)科研專項(GYHY201306035)共同資助
【分類號】：S511;S42

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本文編號：2228359