【摘要】 为研究荚果蕨抗逆性生理机制并且为荚果蕨栽培提供理论依据和参考,以荚果蕨为实验作物,利用盆栽法、光合作用测定仪、土壤农化分析方法研究了荚果蕨生长及光合特性对土壤质量含水量、有机肥料、光照强度等生态因子的响应机制。研究结果表明:荚果蕨幼苗对于水分胁迫具有一定的抗逆性,土壤质量含水量为田间持水量的70%~75%时荚果蕨叶片长度最大,净光合速率(Pn)与蒸腾速率(Tr)表现为随着土壤含水量的增加先上升后下降,水分利用效率(Ew)变化趋势与之相反;不同有机肥料间比较腐熟猪粪肥培肥效果较好,且在1500 kg/hm2施用量时效果达到峰值;各遮阳措施均有利于荚果蕨生长,实验处理为使用透光率为30%的遮阳网时荚果蕨叶片长度最佳。荚果蕨最适宜生长条件为:土壤质量含水量为田间持水量的70%~75%;施用腐熟猪粪肥1500 kg/hm2;遮阳措施透光率为30%。更多还原

【Abstract】 To illuminate the physiological mechanism for the resistance of Matteuccia struthiopteris and presenttheoretical foundation for the cultivation of Matteuccia struthiopteris, potted experiments, photosynthesis testerand agrochemical soil analysis experiments were adopted to investigate the influences of ecological factors,such as soil moisture content, organic fertilizer and light intensity, on the growth and photosyntheticcharacteristic of Matteuccia struthiopteris. The results showed that Matteuccia struthiopteris seedling hadresistance to water stress. When the mass water content of soil was 70%-75% of field capacity, it was optimalfor Matteuccia struthiopteris growth, both the net photosynthetic rate(Pn) and transpiration rate(Tr) increasedfirst and then decreased with the increase of soil water content, the trend of water use efficiency(Ew) wasconversely. The use of organic fertilizer had positive effects on growth of Matteuccia struthiopteris, compostedpig manure was the best and its effect reached the peak at 1500 kg/hm2. Shade measures benefited the growthof Matteuccia struthiopteris, and the optimal transmittance was 30%. The optimal condition for Matteuccia struthiopteris growth was: the mass water content of soil was 70%-75% of field capacity, pig manureapplication amount of 1500 kg/hm2 and the transmittance of 30%.更多还原