精品文献
植物根的生长所需温度
污水处理中温度对黑藻生长的影响(英文)
污水处理中温度对黑藻生长的影响(英文)
[Objective] The research aimed to study the influence of temperature on the growth of Hydrilla verticillata in the wastewater treatment process.[Method] By using the single factor experiment design,four temperatures which were 5,15,25 and 35 ℃ were set.The growth situation of H.verticillata under the different temperatures was observed in the treatment process of domestic sewerage.[Result] H.verticillata grew luxuriantly at 35 and 25 ℃.Via the cultivation of 15 days,the plant length,branch number,root number and biomass of H.verticillata respectively increased 2.8 and 1.2 cm,7.0 and 5.9 branches,6.2 and 3.7 roots,21% and 25%,which were all significantly or extremely significant higher than that at 5 ℃.Under the cultivation condition of 15 ℃,H.verticillata grew slowly.The increment of plant length,branch number and root number were higher than that at 5 ℃,but they had no significant difference.[Conclusion] During 5-35 ℃,the higher temperature could promote the growth of H.verticillata in wastewater treatment process.
PC板温室内立体育秧温度和光照对秧苗生长情况的影响分析
PC板温室内立体育秧温度和光照对秧苗生长情况的影响分析
主要以重庆PC板温室内多层立体育秧架温度和光照对秧苗生长情况的影响为目的,首先对PC板温室内多层育秧架温度数据进行记录并分析,其次针对光照对秧苗生长情况的影响试验展开分析。研究结果表明:光照强度是造成各层之间温度差异的原因之一;温度对秧苗的株高影响不显著;光照对秧苗的株高影响显著(相关系数0.576),且对秧苗的茎粗影响极显著(相关系数0.814)。以此为基础,对西南地区工厂化立体育秧提供参考。