ZHANG Dongxue,LIAO Yi,LU Shunjiao,et al.Effect of Spraying TDZ on Growth and Flowering of Dendrobium ‘Nopporn pink’[J].Northern Horticulture,2017,41(04):46-50.[doi:10.11937/bfyy.201704012]
外施TDZ对秋石斛‘红霞’生长与开花的影响
- Title:
- Effect of Spraying TDZ on Growth and Flowering of Dendrobium ‘Nopporn pink’
- Keywords:
- TDZ; Dendrobium ‘Nopporn pink’; growth; flowering
- 文献标志码:
- A
- 摘要:
- 以秋石斛‘红霞’为试材，研究外施不同浓度的噻苯隆（TDZ）对秋石斛‘红霞’生长与开花的影响。结果表明：外施TDZ可以显著提高秋石斛‘红霞’的花芽萌发率，处理30 d开始大量抽出花芽，TDZ 30 mg?L-1处理60 d花芽萌发率可达91.43%，而对照仅为46.15%；外施TDZ可以显著增加单株的花序数量，最高可达3.80枝；高浓度的TDZ会导致花序缩短、单序花朵数减少、花朵变小甚至花朵畸形等不利影响。综合来看，以TDZ 30 mg?L-1处理促进生长、提前花期的效果最好，且对花朵质量影响最小。该研究结果为秋石斛人工调控花期、提高经济价值提供了技术参考。
- Abstract:
- Dendrobium ‘Nopporn pink’ was used as experimental material，by applying the different concentrations of TDZ，effects of growth and flowering of Den. ‘Nopporn pink’ were studied.The results showed that the application of TDZ could significantly improve the flower bud germination rate of Den. ‘Nopporn pink’.Large quantities of flower buds started out after 30 days of treatment，and the flower bud germination rate was up to 91.43% at 60 days of TDZ 30 mg?L-1，while the control was only 46.15%.Besides，the application of TDZ could significantly increase the number of inflorescence per plant，the maximum amount was up to 3.80 branches per plant.However，high concentration of TDZ could lead to the inflorescence shortening，reduce the flower number of single inflorescence，and make the flowers smaller and even deformed.The results suggested that the application of TDZ 30 mg?L-1 had the best effect on promoting growth，making flowering time earlier and improving the flower quality.Meanwhile，the results of this study also provided a technical reference for Dendrobium flowering regulation and could increase the economic value.
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备注/Memo
第一作者简介：张东雪（1990-），女，硕士研究生，研究方向为观赏植物生理学。E-mail：18345405739@126.com.责任作者：尹俊梅（1968-），女，本科，研究员，研究方向为热带花卉种质资源与遗传育种。E-mail：yinjunmei2004@163.com.基金项目：中央级公益性科研院所基本科研业务费专项资助项目（1630032015036，1630032015023）；948资助项目“中非洲、大洋洲农业生物资源引进”（2016-X17）。