WANG Mei,LIU Yuan,GAO Zhi-kui.Regulating Effects of DPC on Growth of Tomato in Solar Greenhouse[J].Northern Horticulture,2012,36(10):45-47.
缩节胺对越冬番茄的生长调控效应研究
- Title:
- Regulating Effects of DPC on Growth of Tomato in Solar Greenhouse
- 文章编号:
- 1001-0009（2012）10-0045-03
- Keywords:
- tomato; DPC; growth regulation; solar greenhouse
- 分类号:
- S 641.2
- 文献标志码:
- A
- 摘要:
- 以‘雪莉’番茄为试材,研究定植后不同施用时间、不同浓度缩节胺对日光温室硬果型番茄生长和产量的影响。结果表明：越冬番茄定植前2 d用100 mg/L缩节胺(DPC)灌根1次,并于定植后第4 天用100 mg/L缩节胺喷施1次处理的第1花穗下茎高和第1花穗下节间长最小，抑制徒长的效果最佳，且坐果率、单果重、小区产量最高。而定植后第4天用50 mg/L缩节胺喷施1次处理的抑制徒长效果较差，坐果率、单果重、小区产量最低，与CK相近。综合来看，缩节胺灌根处理的抑制徒长效果和增产效果明显优于喷施处理方式，定植前灌根处理的抑制徒长效果和增产效果明显优于定植后灌根处理方式；2次处理的抑制徒长效果和增产效果明显优于1次缩节胺处理。处理Ⅸ(定植前2 d用100 mg/L缩节胺灌根1次，并于定植后第4天用100 mg/L缩节胺喷施1次)的抑制徒长效果最好，与处理Ⅱ（定植后第4天用100 mg/L缩节胺喷施）相比，处理Ⅵ对第1花穗下茎高的抑制效果比处理Ⅱ提高了48.3%,产量也增加23.5%。
- Abstract:
- ‘Xueli’ tomato was used as test material,the regulating effects of different concentrations of DPC at different stages on establishing stage growth of tomato in solar greenhouse were studied. The results showed that the stem height and internode length under first flowers were smallest, and the effect of inhibit spindling was best, and the fruit setting rate, fruit weight, plot yield were the highest under the treatment of roots irrigating once with 100 mg/L DPC before planting 2 d and foliar spraying once with 100 mg/L DPC after planting 4 d had smallest the flowers. But effect of inhibit spindling was bad, and the fruit setting rate, fruit weight, plot yield were the lowest with the treatment of foliar spraying once with 50 mg/L DPC after planting 4 d, which had no significant difference with control. Overall, the effects of inhibit spindling and increase yield with DPC root irrigating treatment were significantly better than those with foliar spraying treatment, meanwhile the effect of DPC root irrigating treatment before planting were significantly better than treatment after planting. For DPC concentration, the effect inhibit spindling and increase yield of 100 mg/L treatment were significantly better than 50 mg/L, and the effect of twice treatment were significantly better than once. The effect of inhibit spindling was better with 100 mg/L DPC root irrigating before planting 2 d and foliar spraying once with 100 mg/L DPC after planting 4 d. compared with foliar spraying once with 100 mg/L DPC after planting 4 d, the effect of inhibition stem height under first flower increased by 48. 3% and yield increased 23.5% with 100 mg/L DPC root irrigating before plant 2 d.
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备注/Memo
第一作者简介：王梅(1972-),女,河北易县人,硕士,高级实验师,研究方向为设施蔬菜生理生态。E-mail:yywm@hebau.edu.cn。
责任作者：高志奎(1963-),男,河北唐山人,博士,教授,博士生导师,研究方向为设施蔬菜生理生态。E-mail:gaozhikui2005@163.com。
基金项目：河北省科技计划资助项目(11220701D)；河北省农业综合开发土地治理科技推广资助项目(2011)。
收稿日期：2012-02-01