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关于种子萌发逆境生理的研究,可追溯到上世纪初 De Saussure 在人工摸拟干旱条件下不同作物的种子萌发试验。此后,许多学者相继作了一系列的研究工作。本世纪50年代,70年代,Levitt,Hsiao 等作了关于作物抗逆性方面的综述。Kramer、Turner、Hadas、Boyer 和 Koller 等继60年代植物水势概念提出之后,又取得了一批新的研究进展,并再次较全面地论述了植物抗逆的生理生化机理。近年来,粮食不足已成为许多国家所面临的严峻问题,提高低产地区的作物生产力也越来越受到国际上的重视。在抗逆境提高产量的技术方面也取得了一批新的进展。我国的干旱半干旱地区范围广阔,占国土总面积高达52.5%,约有耕地2800万公顷。在这类
The research on seed germination adversity physiology can be traced back to the seed germination test of different crops by De Saussure at the beginning of last century under artificial drought conditions. Since then, many scholars have made a series of research work successively. In the 1950s and 1970s, Levitt and Hsiao made summaries on the stress resistance of crops. Kramer, Turner, Hadas, Boyer and Koller made a series of new research progress after the concept of plant water potential in the 1960s, and discussed the physiological and biochemical mechanisms of plant stress resistance again and comprehensively. In recent years, food shortage has become a serious problem facing many countries. Increasing the productivity of crops in low-yielding areas has also drawn increasing international attention. A number of new developments have also been made in the area of technology to increase yields in the face of adversity. Arid and semi-arid areas in our country have a vast area, occupying a total area of 52.5% and about 28 million hectares of arable land. In this class