兩系法雜交稻安全制種的水熱傳輸模型及其應用

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兩系法雜交稻安全制種的水熱傳輸模型及其應用
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中圖分類號:S162
基金項目:國家自然科學基金

MULTI-MODEL ESTABLISHMENT AND APPLICATION FOR WATER AND HEAT TRANSFER ON SAFEGUARDING SEED PRODUCTION OF TWO-LINE HYBRID RICE

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針對兩系雜交稻制種易遇夏季低溫危害制種純度的技術瓶頸,為正確采用以水調(diào)溫預防技術,本文依據(jù)熱量平衡原理,建立了制種稻田的水熱傳輸多層模型。經(jīng)實測資料檢驗,模型穩(wěn)定、可靠。對模型輸入不同灌水參數(shù)的計算結(jié)果表明:20 cm氣溫(不育系敏感期的幼穗高度)隨著凈輻射通量、灌水深度、進水及出水口水溫的升高而增加,增溫幅度受這些因子的綜合影響。要合理的利用水資源必須考慮多種因子的相互作用。對育性的實測表明,以水調(diào)溫對防御夏季低溫,提高制種純度效果良好。

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It was the key problem that two-line hybrid rice met low temperature during seed production，which reduced the purity of seed.For technique of heating by water was a right measure adopted to depend against low temperature harm，multi-model for water and heat transfer was estimated by the principle of heat balance，which is checked by measured data and approved that the model is reliable.By inputting the different irrigation parameters，the results showed that along with net radiation，irrigation depth，water temperature at infalls and outfalls going up，air temperature at 20 cm gradually went up.To irrigate rationally，multi-factor interactions must be considered.In the present experiment，pollens fertility and self-fertilized seed set approved that the techniques were feasible and effective for safeguarding seed production of two-line hybrid rice.

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胡凝,呂川根,姚克敏,夏士健.兩系法雜交稻安全制種的水熱傳輸模型及其應用.氣象科學,2007,(2):196-201 Hu Ning, Lu Chuangen, Yao Kemin, Xia Shijian. MULTI-MODEL ESTABLISHMENT AND APPLICATION FOR WATER AND HEAT TRANSFER ON SAFEGUARDING SEED PRODUCTION OF TWO-LINE HYBRID RICE. Journal of the Meteorological Sciences,2007,(2):196-201

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收稿日期:2005-09-20
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抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说