摘要
在溶液培养和土壤培养条件下，试验油菜幼苗嫁接技术以及嫁接对油菜生长发育的影响。油菜幼苗嫁接后一般有10～12d的缓苗期，其后可确认嫁接苗是否成活。利用“插接法”探索油菜幼苗嫁接技术基础上对其进行了改进，形成了“改良插接法”，嫁接速度快、成活率高。不同硼效率甘蓝型油菜相互嫁接后，油菜不同农艺性状受砧木、接穗影响程度不同，株高、叶片数、地上部干重、产量及产量构成因素等性状主要与其接穗母株接近，主根长度则与其砧木母株特性接近，但它们同时均受到砧木或接穗的影响，影响程度相对较小。不同部位叶片叶绿素含量与其接穗母株特性相近，基本不受砧木影响。油菜地上部硼含量主要受接穗控制，同时受到砧木影响，而砧木硼含量与接穗关系较小。不同硼效率油菜品种各部位钙、镁含量无明显差异，嫁接对其亦无明显影响。
The grafting technique of rapeseed （ Brassica napus L. ） cultivars and the differences in the growth and nutrient uptake between the grafted plants and their maternal plants were studied under the condition of solution culture and soil culture. The grafted plants might be affirmed whether to survive or die within 10 to 12 days. After the rapeseed seedlings were repetitively tried to graft each other by the method of cuttage grafting, the method was improved to fit the rapeseed seedling. The rapeseed seedlings could be faster grafted by the improved cuttage grafting, and its survive ratio was higher than the old cuttage grafting. The effects of grafting on the agronomic characters of the rapeseed cultivars with different boron efficiency were different. Some characters, such as plant height, number of leaves, dry weight of shoots, yield and yield components, were mainly decided by its scion, and to a certain degree affected by its stock. The taproot length was dependent on the stock, and also affected by its scion. Moreover, the chlorophyll content lied on its scion, and was independent of its stock. Boron content in the shoots of rapeseed was dominated by its scion, also related to the stock, but that in the roots was only involved in the stock. The differences of the content of calcium and magnesium in the shoots and roots between the rapeseed cultivars with different boron efficiency were not obvious, and not significantly affected by grafting.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2009年第2期185-189,195,共6页
Chinese Journal of Oil Crop Sciences
基金
国家自然科学基金(30500311)
关键词
甘蓝型油菜品种
嫁接
改良插接法
叶绿素
养分
产量构成因素
Rapeseed （ Brassica napus L. ） cultivars
Graft
Improved cuttage grafting
Chlorophyll
Nutrients
Yield components
