不同营养液水培对卡特兰生长发育的影响

摘要

[目的]研究不同营养液配方对卡特兰(Cattleya hybrida)生长发育的影响.[方法]采用水培方法,以清水培养为对照.[结果]配方C[0.6140 mg/L Ca(NO3)·24H2O+0.2830 mg/L KNO3+0.2400 mg/L NH4NO3+0.1360 mg/L KH2PO4 +0.1540 mg/L MgSO4·7H20 +0.0220 mg/LK2SO4 +0.0170 mg/LK2HPO4 +0.0120 mg/L NaCl+31.1940 mg/L Na2Fe-EDTA +2.8630 mg/L H3BO3+2.1190mg/L MnSO4·4H2O + 0.2300 mg/L ZnSO4·7H20+ 0.0749 mg/L CuSO4·5H2O+ 0.0247 mg/L (NH4)6MO7O2·4H2O]所处理植株的各项形态指标均明显优于其他配方,叶绿素含量也高于其他配方,但丙二醛(MDA)的含量与其他配方相比差异不显著.[结论]该研究可为卡特兰的无土栽培提供科学依据.%[Objective] The effects of different nutrient solution on the growth and development of C. Hybrida were studied.[Method] The test used solution culture method, and the fresh water was used a, control. [Result] The results indicaled that different nutrient soluiion Imd significan effects on the growth and development of C.hybrida.The plants in formula C.solution treatment ,0.6140mg/L Ca(NO3).24H2O + 0.283 0 mg/L KNO, + 0.240 mg/L NH.NO3 + 0. 136 0mg/L KH2PO4+0.1540 mg/L MgSO4.7H2O+0.0220 mg/L K2SO4+0. 0170 mg/L K2HPO4, +0.012 0 m/l NaCl+ 31. 194 0 mg/L Na2Fe-EDTA +2.863 0 mg/L H,BO3 + 2. 119 0 mg/L MnS0, · 4H20+ 0.230 0 ms/L ZnSO4 -7H20+ 0.074 9 mp/L CuSO4 -5H20+ 0.024 7 mg/L (NH4)tM0,02 · 4H2O,had better morphnlogical characters and higher conten of chlorophyll than that in the other treatments. The content of MDA showed no significanl difference in all Itreatments. [Conclusion] The study can provide scientific bails for soilless culture of C. Hybrid.