RAO Yuying,LI Yang,XU Hongping,et al.Effects of Different Seedling Nursery Methods on the Growth and Development of New Combinations of Dwarf Brassica napus[J].Northern Horticulture,2025,(13):35-44.[doi:doi：10.11937/bfyy.20245128]
不同育苗方式对甘蓝型矮杆油菜新组合生长发育的影响
- Title:
- Effects of Different Seedling Nursery Methods on the Growth and Development of New Combinations of Dwarf Brassica napus
- 文章编号:
- 1001-0009(2025)13-0035-10
- Keywords:
- Brassica napus L.; seedling; transplanting; reproductive period; photosynthetic physiology; yield
- 分类号:
- S 565.4
- 文献标志码:
- A
- 摘要:
- 以甘蓝型矮杆油菜新组合DK36、DK41为试材，采用大田育苗和穴盘育苗2种育苗方式，研究了2种育苗方式对DK36、DK41的移栽后成活率、形态指标、光合生理、产量构成因子的影响，以期为油菜新组合推广应用提供参考依据。结果表明：DK36和DK41移栽后，大田育苗的成活率比穴盘育苗分别高13.18%、8.60%；形态指标方面，DK36和DK41在苗期、初花期和蕾薹期大田育苗的株高、叶宽、叶面积均比穴盘育苗高；光合生理方面，大田育苗和穴盘育相比，DK36和DK41光合参数在苗期和初花期有显著差异，DK36和DK41在角果期光合色素无显著差异；在产量构成要素方面，2种育苗方式除DK41全株有效角果有显著差异外，2个组合的主要农艺性状均不具有显著性差异。综上所述，大田育苗和穴盘育苗对甘蓝型矮杆油菜DK36和DK41主要影响是形态指标及移栽后成活率，在苗期后其他指标影响不大，2个组合在2种不同育苗方式下生物产量、经济产量相对稳定，属于稳产类型组合，实际生产中可根据不同应用场景选择合适的育苗方式。
- Abstract:
- Taking the new combinations of dwarf Brassica napus，DK36 and DK41 as experimental materials，two seedling cultivation methods,field seedling raising and tray seedling raising were used to investigate the effects of these methods on the survival rate after transplanting，morphological traits，photosynthetic physiology，and yield components of DK36 and DK41,in order to provide reference for the popularization of new rapeseed combinations.The results showed that the survival rate of DK36 and DK41 seedlings was 13.18% and 8.60% higher than that of hole tray seedlings after transplanting，respectively；in terms of morphological indexes，DK36 and DK41 had higher plant height，leaf width，and leaf area than that of hole tray seedlings at the seedling stage，the first flowering stage，and the bud stage of DK36 and DK41；and in terms of photosynthetic physiology，compared to the field seedlings and the hole tray nursery，there was a significant difference of the photosynthetic parameters between DK36 and DK41 at the seedling and the first flowering stages，and DK36 and DK41 had a significant difference at the seedling and first flowering stages，while DK36 and DK41 had a significant difference in the photosynthetic parameters at the seedling and first flowering stages.In terms of photosynthetic physiology，DK36 and DK41 had significant differences in photosynthetic parameters at seedling and early flowering stages，while DK36 and DK41 had no significant differences in photosynthetic pigments at the angiosperm stage；in terms of yield components，except for DK41，which had a significant difference in whole-plant effective angiosperm，there was no significant difference between the two combinations of the two major agronomic traits.In summary，the main effects of field nursery and hole tray nursery on DK36 and DK41 were morphological indexes and survival rate after transplanting，and other indexes were not significantly affected after the seedling stage，and the two combinations had relatively stable biological and economic yields under the two different nursery methods，which belonged to the type of stable-yield combinations，and the appropriate nursery methods could be selected according to different application scenarios in actual production.
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备注/Memo
第一作者简介：饶鈺溁（1999-），女，硕士研究生，研究方向为植物生态学。E-mail:2647621187@qq.com.责任作者：李超（1977-），男，博士，研究员，现主要从事作物遗传育种等研究工作。E-mail：gzlichao@126.com.基金项目：国家自然科学基金资助项目（32460491）；贵州省科技计划资助项目（黔科合支撑［2023］一般025）；贵州省高层次创新型人才资助项目（百层次）（黔科合平台人才-GCC［2023］030）；贵州省科研机构创新能力专项资金资助项目（黔科合服企［2023］006）。收稿日期：2024-12-25