摘要
在冀西北坝上地区露地以薄皮甜瓜"真甜王"和"红城5号"为试材,采用双蔓整枝,设行距为1.0 m,株距为3水平,即B1:0.35 m,B2:0.40 m,B3:0.45 m共6个处理,研究了不同种植密度对薄皮甜瓜果实发育、光合特性、产量和折光糖度的影响。结果表明:在行距一定的情况下,适当加大株距,有利于甜瓜果实的膨大,有利于提高果实的折光糖度。在同一行距条件下,适当增加株距,会引起Fo的降低,Fv,Fm,Fv/Fm和Fv/Fo的增加,提高了净光合速率,有利于产量的提高,但过分加大株距效果不明显。
Zhentianwang and Hongcheng 5 of pellicle melons were used as experimental materials.Two vane pruning way was adopted.Row spacing was 1.0 m,spacing of plant had three levels：B1（0.35 m）,B2（0.40 m） and B3（0.45 m）.The effect of different planting density on photosynthetic characteristic and development and yield and refraction sugar content of pellicle melon were studied.The results indicated that fruit enlarging rate of melon could be promoted and refraction sugar content was increased as row spacing was fixed and spacing of plant was increased.When row spacing was fixed and spacing of plant was increased properly,Fo was decreased,Fv and Fm and Fv/Fm and Fv/Fo were increased,the net photosynthetic rate and yield were increased,but it had no remarkable effect if spacing of plant was increased fulsomely.
出处
《北方园艺》
CAS
北大核心
2008年第10期1-4,共4页
Northern Horticulture
基金
国家“十一五”科技支撑计划资助项目(2006BAD15B05)
河北省“十一五”科学技术研究与发展计划资助项目(06220901D)
张家口市科技局科技攻关资助项目(061143)
关键词
种植密度
薄皮甜瓜
光合特性
产量
含糖量
Planting density
Pellicle melon
Photosynthetic characteristic
Yield
Refraction sugar content
