Studies on factors influencing rooting efficiency from mature Chinese fir superior clones in vitro

ZHOU Xiaohong, ZHANG Yuanli, LI Meiping, ZHAO Fangfang, CHEN Jinhui, ZHENG Renhua, XIAO Hui, HUANG Jinhua, ZHANG Zhicai, LI Yong, ZHEN

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2013, Vol. 37 ›› Issue (06) : 169-172.

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南京林业大学学报（自然科学版）
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JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2013, Vol. 37 ›› Issue (06) : 169-172. DOI: 10.3969/j.issn.1000-2006.2013.06.034

Studies on factors influencing rooting efficiency from mature Chinese fir superior clones in vitro

  • ZHOU Xiaohong1, ZHANG Yuanli1, LI Meiping1, ZHAO Fangfang1, CHEN Jinhui1, ZHENG Renhua2, XIAO Hui2, HUANG Jinhua3, ZHANG Zhicai3, LI Yong3, ZHEN
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Abstract

Using three different genotypes of shoot sections of mature superior clones of Cunninghamia lanceolata, the effect of factors such as plant growth regulators(PGRs), genotypes, basal medium and activated charcoal were studied for rooting frequency. The results showed that genotypes and NAA were key factors influencing rooting efficiency. Genotype 1# was more capable of rooting. The basal medium 1/4 DCR added with IBA 1.0 mg/L or NAA 0.5-1.0 mg/L could increase rooting efficiency to the level of 90%. Genotype 2# had a weaker ability of rooting. The 1/2DCR basal medium added with IBA 1.5 mg/L or NAA 1.0 mg/L was better in adventitious roots induction for this genotype. For genotype 3#, it had the best rooting efficiency when the level of IBA was 1.5 mg/L or the level of NAA was 1.0 mg/L, 3/4 DCR was fit for rooting. Addition of activated charcoal could not effectively improve rooting in this experiment.

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ZHOU Xiaohong, ZHANG Yuanli, LI Meiping, ZHAO Fangfang, CHEN Jinhui, ZHENG Renhua, XIAO Hui, HUANG Jinhua, ZHANG Zhicai, LI Yong, ZHEN. Studies on factors influencing rooting efficiency from mature Chinese fir superior clones in vitro[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2013, 37(06): 169-172 https://doi.org/10.3969/j.issn.1000-2006.2013.06.034

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