摘要
为筛选出适于红秆寒竹成苗的最佳基质配比和母株数组合,以不同基质配比(黄棕壤:泥炭=5:0、3:2、1:1、2:3)与不同母株数(分别为7、5、3株)进行盆栽组合试验,分析测定不同组合试验条件下红秆寒竹新竹生长及生理特性。结果表明,不同基质配比及母株数组合条件下,红秆寒竹的新竹发生率、株高、地径、叶面积、叶绿素含量、氮含量、磷含量及抗氧化酶活性都有明显差异。当基质配比5:0、母株数7株时,红秆寒竹新竹的株高、地径和叶面积等形态指标显著大于其他处理组。此外,不同基质配比及母株数处理均可以显著影响新竹叶片矿质养分的含量和抗氧化酶活性,其中,基质比5:0、母株数7株时,新竹氮、磷养分含量以及叶片中的超氧化物歧化酶、过氧化物酶和过氧化氢酶活性均显著高于其他处理组。综合多项指标结果,初步确定适宜红秆寒竹快速繁育的最佳育苗基质配比为5:0(黄棕壤:泥炭),最佳母株数为7株。
To screen out the optimal combination of substrate composition and planting number suitable for the seedling formation of Chimonobambusa marmorea f.variegata,potted combination experiments were performed with different substrate ratios(yellow brown soil:peat=5:0,3:2,1:1,2:3)and different planting number(7,5 and 3 respectively).The morphological growth and physiological characteristics of the C.marmorea f.variegate in the above treatments were analyzed.The results showed that emergence ratio,plant height,ground diameter,leaf area,chlorophyll content,nitrogen content and phosphorus content and activity of antioxidant enzymes of C.marmorea f.variegate under various treatments were different.Among them,the plant height,ground diameter,leaf area,chlorophyll content,nitrogen content and phosphorus content and activity of antioxidant enzymes in C.marmorea f.variegate under the treatment of substrate composition(5:0)and planting number(7)were much higher than those in other treatments.Based on the above results,the optimal combination of substrate composition and planting number for good breeding of C.marmorea f.variegate is determined,the ratio of yellow-brown soil:peat is 5:0,and the planting number is 7.
作者
罗佳莉
汤祎磊
史文辉
应叶青
LUO Jiali;TANG Yilei;SHI Wenhui;YING Yeqing(Bamboo Research Institute,Zhejiang A&F University,Hangzhou 311300)
出处
《中国农学通报》
2023年第31期38-43,共6页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金面上项目“溶磷微生物介导毛竹根系活化和吸收矿物磷的机理研究”(32171879)
国家自然科学基金面上项目“氮沉降对毛竹响应低磷胁迫的影响及其机制研究”(31770645)。
关键词
红秆寒竹
基质配比
母株数
新竹生长
形态指标
生理指标
Chimonobambusa marmorea f.variegate
substrate composition
planting number
seedling growth
morphological indexes
physiological indexes
