落叶果树2025，Vol.57Issue(5)：35-38,4.DOI:10.13855/j.cnki.lygs.2025.05.008
含水量与植物生长调节剂对苹果砧木组培苗瓶外生根效果的影响
Effects of water content and plant growth regulators on the ex vitro rooting effects of tissue-cultured apple rootstock seedlings
韩秀 1王晓英 1仲凤维 1周光锋 1秦宁 1李国华1
作者信息
- 1. 泰安市泰山林业科学研究院,山东泰安 271000
- 折叠
摘要
Abstract
Taking tissue-cultured seedlings of apple rootstock G935 as the test material,the effects of different water contents and different concentrations of plant growth regulators on the ex vitro rooting effect of tissue-cultured seedlings when using vermiculite as the substrate were explored.The results showed that when the water content of vermiculite was 28％,the rooting rate of tissue-cultured seedlings reached 68.67％,with an average of 11 roots per seedling,the average length of primary lateral roots was 24.60 mm,and the average length of the longest root was 39.64 mm;all these indicators were higher than those when the water content of vermiculite was 8％,18％,24％,and 38％.On the basis of 28％vermiculite water content,dipping the base of seedlings in 4 000 mg/L IAA for 3 seconds achieved the best ex vitro rooting effect on tissue-cultured seedlings,which was better than that of IBA and NAA.After 30 days of cultivation in an artificial climate chamber,the rooting rate of tissue-cultured seedlings reached 97.1％,with an average of 15 roots per seedling,among which the length of primary lateral roots was 44.25 mm,and the length of the longest root was 60.47 mm.关键词
苹果砧木/组培苗/瓶外生根/基质含水量/植物生长调节剂Key words
apple rootstock/tissue-cultured seedlings/ex vitro rooting/substrate water content/growth regulators分类
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韩秀,王晓英,仲凤维,周光锋,秦宁,李国华..含水量与植物生长调节剂对苹果砧木组培苗瓶外生根效果的影响[J].落叶果树,2025,57(5):35-38,4.
