BAI Xiuwen.Effect of Brassinolide on Spring Shoots and Summer Shoots Growth of Ligustrum quihoui Carr.[J].Northern Horticulture,2016,40(21):72-76.[doi:10.11937/bfyy.201621018]
芸苔素内酯对小叶女贞春梢和夏梢生长的影响
- Title:
- Effect of Brassinolide on Spring Shoots and Summer Shoots Growth of Ligustrum quihoui Carr.
- Keywords:
- brassinolide; Ligustrum quihoui Carr.; growth; spring shoots; summer shoots; correlation
- 文献标志码:
- A
- 摘要:
- 以小叶女贞为试材，采用喷雾法，研究了芸苔素内酯有效成分用量0.005～0.025 mg?kg-1对小叶女贞生长的影响，为芸苔素内酯在小叶女贞上的合理使用提供理论依据和技术指导。结果表明：随着有效成分用药量的增加，小叶女贞梢长增值、梢粗增值、叶片长度、叶片宽度、叶片厚度、叶片质量显著提高，畸形叶率也随之升高。芸苔素内酯0.010～0.020 mg?kg-1处理后，与对照相比，小叶女贞梢长增值、梢粗增值、叶片长度、叶片宽度、叶片厚度、叶片质量均显著提高，而畸形叶率无显著差异。相关性分析发现，就春梢而言，芸苔素内酯浓度与小叶女贞梢长增值、叶片厚度和畸形叶率表现为极显著正相关，相关系数均在0.83以上，与梢粗增值、叶片长度、叶片宽度和叶片质量表现为显著正相关，相关系数均在0.51以上。就夏梢而言，除梢粗增值与芸苔素内酯浓度相关性不显著外，其它相关性与春梢相同。说明芸苔素内酯处理浓度增大可有效促进枝梢和叶片生长，但会提高畸形叶数量。综合分析认为，在春梢和夏梢生长期，采用有效成分含量为0.010～0.020 mg?kg-1芸苔素内酯进行喷雾处理，可有效增加春梢和夏梢的梢长和梢粗，增大叶片大小、叶片厚度和叶片质量，且畸形叶率较低。
- Abstract:
- Taking Ligustrum quihoui Carr.as test materials，and using the spray method to investigate the effects of brassinolide on spring and summer shoot growth of L.quihoui.with the effective component content of 0.005-0.025 mg?kg-1，so as to provide a theoretical basis and technical guidance for the rational use of brassinolide on L.quihoui.The results showed that，with the increase of active components of brassinolide，the increment of shoots length and coarseness，length，width，thickness and weight of leaves increased，but the abnormal rate of leaves also increased，significantly.Compared with blank control，when the effective component content of 0.010-0.020 mg?kg-1 were applied，the increment of shoots length and coarseness，length，width，thickness and weight of leaves all increased，and the abnormal rate of leaves has no significant difference.Correlation analysis showed，as for the spring shoots，different brassinolide concentrations with the increment of shoots length，thickness and abnormal rate of leaves were highly significant positive correlation，the correlation coefficient was above 0.83.The different brassinolide concentrations with the increment of shoots coarseness，length，width and weight of leaves were significant positive correlation，the correlation coefficient was above 0.51.As for the summer shoots，in addition to the increment of shoots coarseness had no significant correlation between concentrations，other correlation with spring shoots were the same.With the increase of active components of brassinolide could effectively promote the growth of branches and leaves，but increase the abnormal rate of leaves.Comprehensive analysis，the L.quihoui could be used the effective component content of 0.010-0.020 mg?kg-1 by spray processing to treatment in the growth stage of spring and summer shoots，it increased the increment of shoots length and coarseness，length，width，thickness and weight of leaves，and the abnormal rate of leaves was low.
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备注/Memo
作者简介：白秀文（1971-），女，本科，副教授，现主要从事园艺专业教学与科研等工作。E-mail：baixiuwenok@163.com.基金项目：内蒙古自治区高等学校科学研究资助项目（NJZY12285）。