LOW TEMPERATURE EMERGENCE IN CROP PLANTS : BIOCHEMICAL AND MOLECULAR ASPECTS OF GERMINATION AND EARLY SEEDLING GROWTH
LOW TEMPERATURE EMERGENCE IN CROP PLANTS : BIOCHEMICAL AND MOLECULAR ASPECTS OF GERMINATION AND EARLY SEEDLING GROWTH
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DOI：
10.1300/j144v01n01_11
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发表时间：
1997-10
期刊：
影响因子：
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通讯作者：
C. Nykiforuk;A. Johnson-Flanagan
中科院分区：
文献类型：
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作者：
C. Nykiforuk;A. Johnson-Flanagan
摘要在加拿大，重要农艺作物的播种是在春季的头几个月进行的，此时气温远低于最适温度。低温降低了种子萌发的速度和成功率。这反过来可能会导致土壤中缓慢的不同步出苗和糟糕的林分建立。由于出苗是萌发和早期幼苗生长的函数，低温对这些发育过程的影响引起了人们的极大兴趣。本文从生物化学和分子生物学的角度研究了低温对种子萌发和幼苗早期生长的影响。、甘蓝型油菜Brassica napus L.cv.油菜Westar不表现出初级或次级休眠状态，是研究低温出苗的理想物种。首先，从萌发和幼苗早期生长两个独立的部分对出苗进行回顾。萌发分为萌发的三个阶段。早期苗木生长被分成几个部分，涵盖储藏储备调动…
Summary In Canada, seeding of agronomically important crops takes place during the early months of spring when temperatures are well below the optimum. Low temperature reduces the rate and success of germination. This in turn can result in slow asynchronous emergence from the soil and poor stand establishment. As emergence is a function of both germination and early seedling growth, the effect of low temperature on these developmental processes is of great interest. This review examines how low temperature affects germination and early seedling growth in relation to biochemical and molecular processes. As Brassica napus L. cv. Westar, canola, does not exhibit primary or secondary dormancy, it serves as an ideal species in which to study low temperature emergence. First, emergence is reviewed by independent sections covering germination and early seedling growth. Germination is dissected into the three phases of germination. Early seedling growth is broken into sections covering storage reserve mobilizatio...