淹水對(duì)夏玉米性狀及產(chǎn)量的影響試驗(yàn)研究

doi:10.3969/2012jms.00**

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淹水對(duì)夏玉米性狀及產(chǎn)量的影響試驗(yàn)研究
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                        10.3969/2012jms.00**
                    
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中圖分類號(hào):S166
基金項(xiàng)目:淮河流域氣象開放研究基金項(xiàng)目（HRM200706）；河南省氣象科學(xué)技術(shù)研究項(xiàng)目（Z200708）

An impact test study of the flood disasters on summer corn's characters and yield

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為定量探求洪澇災(zāi)害對(duì)玉米生長及產(chǎn)量的影響，于2008和2009年在河南省駐馬店地區(qū)進(jìn)行以淹水日數(shù)和淹水發(fā)育期為試驗(yàn)因素的模擬試驗(yàn)。結(jié)過表明：淹水1 d對(duì)玉米產(chǎn)量影響甚微，淹水3 d以上減產(chǎn)率40%以上，拔節(jié)期淹水5~7 d，抽雄期淹水7 d夏玉米基本絕收。淹水對(duì)夏玉米植株死亡率、果穗成穗率、單株籽粒重影響明顯；對(duì)株高、果穗長、粗、百粒重和禿尖率影響較小。拔節(jié)期的淹水危害重于抽雄期。討論了淹水日數(shù)與淹水發(fā)育期對(duì)玉米產(chǎn)量影響的交互作用。初步建立了淹水的玉米產(chǎn)量損失率評(píng)估模型。

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To quantitatively explore the effect of flooding on the growth and yield of corn, a simulation test was carried out in Zhumadian areas, Henan Province in 2008 and 2009, which accounted for a number of factors, especially the waterlogging time and the development stage. The results of the test suggest that: 1 d flooding has little effect on corn production, while more than 3 d flooding leads to over 40% reduction. During the jointing stage, 5-7 d flooding results in a total failure for summer corn. This is also the case for 7 d flooding during the heading stage. Flooding has significant effect on mortality, spike rate, and grain weight per plant for summer corn, while the plant height, ear length, diameter, weight and bald rate are less affected. Flooding in the jointing stage results in more damage than in the heading stage. In this paper, we discuss the interaction between the waterlogging time and the development stage. A preliminary loss assessment model for flooded corn has been established.

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李香顏,劉忠陽,李彤宵.淹水對(duì)夏玉米性狀及產(chǎn)量的影響試驗(yàn)研究.氣象科學(xué),2011,(1):79-82 Li Xiangyan, Liu Zhongyang, Li Tongxia. An impact test study of the flood disasters on summer corn's characters and yield. Journal of the Meteorological Sciences,2011,(1):79-82

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