石灰岩旱地果园生草对果树叶片生理活性影响的研究

Study on the Effects of Ground Cover on the leaf PhysiologicalActivity of Apple Tree on Dry Calcareous Soil

1995～1998年在山西省平定县理家庄村果园进行了生草覆盖试验。试验结果表明 ,在石灰岩发育的土壤上种植鸭茅和无芒雀麦 ,能明显提高叶片生理活性 ,使新梢不同部位叶片百叶重增加4.75 %～33.9 %,单叶面积增加16.26 %～29.6 %,叶绿素含量增加7.07 %～20.37 %,光合速率提高13.07 %～27.26 %,暗呼吸速率提高2.76 %～17.53 %;不同枝类叶片百叶重增加4.60 %～13.24 %,单叶面积增加2.72 %～12.54 %,叶绿素含量增加6.49 %～18.63 %,光合速度提高13.82 %～40.24 %,暗呼吸速率提高2.23 %～25.00 %;花序坐果率提高5.45 %和3.33 %,单果重增加4.9 %和1.5 %,单株产量提高58.68 %和53.5 %

A ground cover experiment was conducted on Starkrinson in LiJiazhuang orchard in PingDing county of ShanXi province in 1995～1998,where the soil is developed from calcareous stone.It's observed that planting Dactylic glomerata and Bromuis inermis between tree lines promoted the physiological activity of the leaves on different parts of newshoots,the weight of 100 leaves increase by 4.75%～33.9%,the leaf area increased by 16.26%～29.6%,the content of chlorophyll increased by 7.07%～20.37%,the rate of photosynthesis improved by 13.07%～27.26%,the rate of dark respiration rose by 2.76%～17.53%.To leaves on different kinds of branches,the weight of 100 leaves increased by 4.60%～13.24%,the leaf area increased by 2.72%～12.54%,the content of chlorothyll increased by 6.49%～18.63%,the rate of photosynthesis improved by 13.82%～40.24%,the rate of dark respiration rose by 2.23%～25.00%.The rate of fruit-setting improved by 5.45%and 3.33%,The yield of per plant increased by 58.68% and 53.52%