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韩梅.干旱胁迫对不同小麦品种花后旗叶光合特性及产量的影响[J].中国农学通报,2019,35(26):6-12..Drought Stress: Effects on Photosynthetic Characteristics of Flag Leaf and Yield of Wheat Varieties[J].Chinese Agricultural Science Bulletin,2019,35(26):6-12
干旱胁迫对不同小麦品种花后旗叶光合特性及产量的影响
Drought Stress: Effects on Photosynthetic Characteristics of Flag Leaf and Yield of Wheat Varieties
投稿时间:2018-04-15  修订日期:2019-08-14
DOI:10.11924/j.issn.1000-6850.casb18040063
中文关键词: 干旱胁迫  小麦  光合特性  产量
英文关键词: drought stress  wheat  photosynthetic characteristics  yield
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基金项目:国家科技支撑计划项目“华北平原类型区旱地作物高产高效技术集成示范”(2011BAD09B01-2);国家重点研发计划项目“黄淮海东部高产 高效型强中筋小麦品种筛选及其配套栽培技术”(2016YFD0300403);国家重点研发计划“鲁东丘陵区小麦-玉米全程机械化抗旱减灾技术集成与示 范”(2018YFD0300604);国家重点研发计划“小麦优异种质资源形成与演化规律研究”(2016YFD100302)。
作者单位E-mail
韩梅 青岛农业大学科技楼4035 18766219848@163.com 
中文摘要:
      我国小麦主产区在花后常常频发干旱,对小麦产量下降和品质产生很大影响。[目的]为筛选适于山东省旱作区栽培的优良小麦品种,在大田雨养条件下,[方法]研究了干旱胁迫对5个小麦主栽品种花后旗叶叶绿素含量、光合速率、蒸腾速率、气孔导度、胞间CO2浓度及产量变化的影响。[结果]结果表明:干旱胁迫使小麦旗叶叶绿素含量降低,济麦22和临麦6叶绿素含量相对较高。干旱胁迫使小麦旗叶光合速率降低,济麦22降低较多,青麦6降低较少。干旱胁迫下鲁麦13、青麦6能在较高的蒸腾速率下保持较高的光合速率。[结论]综合考虑,水分充足条件下济麦22适合本地区推广栽种,在干旱条件下鲁麦13和青麦6产量较稳定。
英文摘要:
      To screen fine wheat varieties suitable for cultivation in dry farming area of Shandong Province, under the condition of rain cultivation in field,‘Jimai 5265’,‘Lumai 13’,‘Jimai 22’,‘Linmai 6’,‘Qingmai 6’were used as materials. The SPAD value, net photosynthetic rate, transpiration rate and other related indexes of wheat flag leaf as well as yield were detected by the chlorophyll meter and photosynthetic apparatus. The results showed that drought stress reduced the SPAD value of flag leaf of wheat. The SPAD value of‘Jimai 22’and ‘Linmai 6’was relatively high, which indicated that the chlorophyll content was high, and flag leaf had strong ability to produce photosynthate and strong drought resistance. Drought stress reduced the photosynthetic rate of flag leaf of wheat; the photosynthetic rate of‘Jimai 22’decreased more, while that of‘Qingmai 6’reduced less.‘Qingmai 6’had more drought resistance than‘Jimai 22’. Under drought stress,‘Lumai 13’and ‘Qingmai 6’could maintain high photosynthetic rate under high transpiration rate. Taken together, under the condition of adequate water,‘Jimai 5265’and‘Jimai 22’are suitable for popularizing in this area, under drought condition, the yield of‘Lumai 13’and‘Qingmai 6’is relatively stable.
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