节能日光温室内CO_2浓度对西葫芦生长及产量的影响

Study on Pumpkin's Growth under CO\-2 Concentrations in Energy Saving Sunlight Greenhouse

研究了高纬度地区 (石河子 ,北纬 44 1 9’)冬季节能日光温室内不同CO2 浓度对西葫芦生长发育及生理代谢的影响。结果表明 ,在提高CO2 浓度条件下 ,西葫芦株高、茎粗、叶面积、植株鲜、(干 )重都有很大的增长 ,其中以茎粗、植株鲜、(干 )重增长最为显著。另外 ,提高CO2 浓度能促进西葫芦的花芽分化 ,使开花提前 ,提高雌 /雄花比值 ,提高雌花数。CO2 浓度促进了西葫芦的生殖生长 ,其花芽质量提高 ,化瓜率降低 ,通过统计早期西葫芦的经济产量 ,1 0 0 0 μL/L、2 0 0 0 μL/L、30 0 0 μL/L处理较对照分别增加 32 .1 8%、86.97%、8.43%。

In this paper,studies on effects of different CO\-2 concentrations on crop's growth development and physiology of pumpkin in winter in energy saving sunlight greenhouse which was built in cold area located at high latitudes(Shihezi,North 44 19′).The results show that growing under higher CO\-2 concentration its plant height,stem width,leaf area, biomass largely increase.The increase of stem width, biomass,fresh weight and dry weight are very remarkable. Flower bud differentiation is advanced,which make blossom ahead of normal time,enlarge male female ratio. As a result,enhancing CO\-2 concentration can improve the yield.By statistics pumpkin early yield,on base of CK,1 000 μL/L,2 000 μL/L and 3 000 μL/L concentration respectively increase 32.18%,86.97% and 8.43%.\;