干旱胁迫下圆柏不同品种(系)叶绿素含量变化规律

通过人工控制盆栽圆柏灌水量的试验方法,以圆柏6个品种(系)为材料,对干旱胁迫下圆柏叶片叶绿素a、叶绿素b含量的变化进行了测定及分析。结果表明:不同圆柏品种(系)叶片叶绿素a、叶绿素b含量均呈现先增后降的过程,方差分析可得,这种变化在各品种(系)间有极显著差异;相关分析表明,叶绿素a、叶绿素b含量与叶片含水量呈显著正相关。此6个品种(系)叶绿素a、叶绿素b含量在整个干旱胁迫过程中幅度变化由大到小为:京桧10-3>金花桧>京桧22-1>京桧13-1>京桧6-2>兰塔桧。

Study on Changes Regularity of Chlorophyll Contents in Different Sabina chinensis (L.)Varieties (Lines) during Drought Stress

Six different varieties (lines) of Sabina chinensis (L.) are cultivated by potted plant of manual manipulation. Change of contents from Chlorophyll a and Chlorophyll b in six different Sabina chinensis (L.) varieties (lines) were measured and analyzed. The result indicated that contents of Chlorophyll a and Chlorophyll b experienced a process of first increasing then decreasing. There is a significant deviation of the change between the six different varieties (lines). The correlation analysis showed that contents of chlorophyll and leaf water content have a significant positive correlation. The change of Chlorophyll a and Chlorophyll b content from high to low is Sabina chinensis 'jinggui 10-3', Sabina chinensis 'jinhuagui', Sabina chinensis 'jinggui 22-1', Sabina chinensis 'jinggui 13-1', Sabina chinensis 'jinggui 6-2', Sabina chinensis 'lantagui'.