大麦叶色转换突变系转色机理及其调控研究

Research on the Mechnisim and Regulation of the Leafcolour transformation of Barley Mutant Line

１９９３～１９９６年的研究结果表明，大麦叶色转换突变系是由隐性单核基因控制的自然突变体，诱导转色的重要外因是一定的低温和短日照。在叶色由绿转黄变白的过程中，体内叶绿素、可溶性糖含量及植株鲜、干重明显下降，分蘖速度减慢，数量减少，生长受到一定抑制。

The results of the research conducted in 1993～1996 show that the barley mutant lines with leafcolour transformation is a natural one controlled by a recessive gene and the key factors to induce the leafcolour transformation are low temperature and short sunshine During the transformation of leafcolour from the green to yellow, even white, leaf chlorophll, solvable carbonhydrate, plant weight (dry and fresh), tillering speed and tiller number of the barley mutant lines decline: The growth of barley is inhibited to some extent Therefore the traits of the barley mutant lines can be used to controll tillering and population stracture of barley in favour of barley production with highyield, high quality and high efficency