不同生长调节剂及插穗对金花茶扦插生根的影响
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摘要
为探究金花茶(Camellia nitidissima)苗木的扦插繁殖技术,提高穗条资源的有效利用率,培育优质金花茶苗木,进行了不同生长调节剂的单叶单芽扦插以及不同插穗(单叶单芽与两叶两芽)的扦插试验。结果表明:3种生长调节剂中,R2(IBA 500 mg/L+NAA 200 mg/L)处理的单叶单芽插穗扦插效果最好,其生根率、1级不定根、根系效果指数均为最大。单叶单芽插穗生根率高达96.33%,比两叶两芽插穗生根率高29.66%。2种插穗类型扦插成活的苗木移栽18个月后,单叶单芽扦插苗保存率达到了100%,其扦插苗的地径、总鲜重、一级侧根数量以及主根粗显著大于两叶两芽扦插苗。今后在生产上可采用生长调节剂R2(500mg/LIBA+200mg/LNAA)处理单叶单芽插穗进行扦插繁殖。
The experiment on the effects of different growth regulators on cuttings with single leaf and single bud and different cuttings with single-leaf single-bud and two-leaf two-bud was conducted in order to explore the cuttage propagation technology of Camellia nitidissima seedlings and improve the effective utilization rate of spike resources and cultivate high-quality C. nitidissima seedlings. Results showed that cuttings with singleleaf and single-bud treated with R2(500 mg/L IBA+200 mg/L NAA) had the best cutting effect,which rooting rate,first-order adventitious roots and root effect index were the highest. The rooting rate of cuttings with single-leaf and single-bud was 96.33%,which was 29.66% higher than that of cuttings with two-leaf and twobud. After 18 months of transplantation,the survival rate of cuttings with single-leaf and single-bud reached100%. The ground diameter,total fresh weight,number of primary lateral roots and the diameter of main roots of cuttings with single-leaf and single-bud were significantly larger than those of cuttings with two-leaf and two-bud. In the future,growth regulator R2(500 mg/L IBA+200 mg/L NAA) could be used for cuttings with single-leaf and single-bud propagation.
The experiment on the effects of different growth regulators on cuttings with single leaf and single bud and different cuttings with single-leaf single-bud and two-leaf two-bud was conducted in order to explore the cuttage propagation technology of Camellia nitidissima seedlings and improve the effective utilization rate of spike resources and cultivate high-quality C. nitidissima seedlings. Results showed that cuttings with singleleaf and single-bud treated with R2(500 mg/L IBA+200 mg/L NAA) had the best cutting effect,which rooting rate,first-order adventitious roots and root effect index were the highest. The rooting rate of cuttings with single-leaf and single-bud was 96.33%,which was 29.66% higher than that of cuttings with two-leaf and twobud. After 18 months of transplantation,the survival rate of cuttings with single-leaf and single-bud reached100%. The ground diameter,total fresh weight,number of primary lateral roots and the diameter of main roots of cuttings with single-leaf and single-bud were significantly larger than those of cuttings with two-leaf and two-bud. In the future,growth regulator R2(500 mg/L IBA+200 mg/L NAA) could be used for cuttings with single-leaf and single-bud propagation.
引文
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[10]陈祖娟.不同生根处理对金花茶扦插育苗的影响[J].现代农业科技,2014(9):179-180.
[11]赵鸿杰,李鑫,玄祖迎,等.不同基质和激素对金花茶扦插成活率、根系的影响[J].林业实用技术,2014(9):77-79.
[12]黄昌艳,卜朝阳,王晓国.不同生根剂和基质对金花茶扦插生根的影响[J].中国热带农业,2018(2):73-75.
[2]黄燮才.金花茶开发利用概况及前景预测[J].中国中医药信息杂志,1994,1(6):10-11.
[3]龚弘娟,胡兴华,李洁维,等. 3种不同基质对金花茶扦插的影响[J].福建林业科技,2009,36(3):145-147.
[4]杨成华,张廷忠,方小平.贵州2种金花茶的扦插繁殖试验[J].林业科技通讯,1996(10):23-24.
[5]蒋桥生,李洁维,李纯,等.金花茶大棚设施扦插育苗技术[J].广西园艺,2007,18(4):41-42.
[6]谢富文.金花茶的扦插育苗[J].中国林业,1999(10):42.
[7]邓桂英.金花茶的水插繁殖试验[J].南方园艺,2001(1):2.
[8]季孔庶,王章荣.马尾松插穗生根能力变异的研究[J].南京林业大学学报,1998,22(3):66-70.
[9]吴儒华,潘子平,潘子来. NAA和IBA在金花茶扦插育苗中的组合应用[J].科技信息,2008(9):612-613.
[10]陈祖娟.不同生根处理对金花茶扦插育苗的影响[J].现代农业科技,2014(9):179-180.
[11]赵鸿杰,李鑫,玄祖迎,等.不同基质和激素对金花茶扦插成活率、根系的影响[J].林业实用技术,2014(9):77-79.
[12]黄昌艳,卜朝阳,王晓国.不同生根剂和基质对金花茶扦插生根的影响[J].中国热带农业,2018(2):73-75.