本文選題：東北 + 水稻��； 參考：《應(yīng)用生態(tài)學(xué)報(bào)》2017年10期

【摘要】：基于灰色關(guān)聯(lián)分析法,將水稻不同生育期的冷害致災(zāi)因子值和產(chǎn)量結(jié)構(gòu)性狀、水稻不同生育期的產(chǎn)量結(jié)構(gòu)性狀和最終產(chǎn)量分別視作兩個(gè)灰色系統(tǒng),通過尋找各個(gè)灰色系統(tǒng)的灰映射關(guān)系,建立基于多層次灰色關(guān)聯(lián)分析法的水稻低溫冷害綜合評(píng)估模型;并構(gòu)建了單站各生育期、全生育期的冷害綜合評(píng)估指數(shù)和區(qū)域評(píng)估指數(shù),對東北水稻主產(chǎn)區(qū)27個(gè)站1961—2015年水稻冷害進(jìn)行分生育期評(píng)估.結(jié)果表明:水稻冷害影響程度與各生育期產(chǎn)量豐歉能夠較好對應(yīng).營養(yǎng)生長期、營養(yǎng)和生殖生長并進(jìn)期、授粉結(jié)實(shí)期或滿漿期受到冷害影響時(shí),株穗數(shù)、平均穗粒數(shù)或千粒重有一定減少,空殼率有所增加.典型冷害年溫度與單站或區(qū)域產(chǎn)量豐歉有較好的對應(yīng)關(guān)系.
[Abstract]:Based on grey relational analysis, the values of chilling disaster factors and yield structure characters of rice at different growth stages, yield structure traits and final yield of rice at different growth stages were regarded as two grey systems, respectively. By searching for the grey mapping relation of each grey system, the comprehensive evaluation model of low temperature chilling damage of rice based on multi-level grey relational analysis was established, and the comprehensive assessment index and regional assessment index of chilling damage in each growth period and the whole growth period of single station were constructed. Rice chilling injury was evaluated in 27 stations in Northeast China from 1961 to 2015. The results showed that the effect of chilling injury on rice was better than that of yield at different growth stages. In the vegetative growth period, vegetative and reproductive growth stage, pollination stage or full pulp stage, the number of panicles, the average number of kernels per ear or the weight of 1000 kernels per ear were decreased, and the rate of empty shell increased. The annual temperature of typical chilling injury has a good correspondence with the single station or regional yield.
【作者單位】： 中國氣象局氣象干部培訓(xùn)學(xué)院;中國氣象局沈陽大氣環(huán)境研究所;國家氣象中心;
【基金】：遼寧省科技廳農(nóng)業(yè)攻關(guān)及成果產(chǎn)業(yè)化項(xiàng)目(2014210003) 氣象行業(yè)專項(xiàng)(GYHY201106021)資助~~
【分類號(hào)】：S426;S511

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