BAP Spray and Plastic Container Responses on Asparagus officmalis L. Crown Growth  

作　　者：Alberto Pagani Jorge Molinari Adalberto Di Benedetto 

机构地区：[1]Departamento de Producci6n Vegetal, Facultad de Agronomia, Universidad de Buenos Aires, Ciudad Aut6noma de Buenos AiresC1417DSE, Argentina [2]Departamento de Producci6n Vegetal, Suelos e lngenieria Rural, Facultad de Ciencias Agrarias, Universidad Naeional de Mardel Plata, Provincia de Buenos Aires B 7620ZAA, Argentina

出　　处：《Journal of Life Sciences》2013年第8期827-835,共9页生命科学（英文版）

摘　　要：The aims of this work were to study the effect of two different plastic containers on asparagus growth and the effect of early applied 6-benzilaminepurine （BAP） on crown growth during the first two years after seed germination. Although there was not found a root restriction effect with the use of plastic containers, there were significant differences between plants grown in plastic seedbed or single pots which suggesting an unusual and unexpected asparagus autotoxicity. The results showed that crown fresh weight, total dry weight, relative growth ratio （RGRroot）, root：shoot ratio and photosynthetic shoot number increased in BAP-sprayed plants over the controls without treatment as a result of a change in photosynthate partitioning towards the root system. The BAP snravs seem to be a ~reater effect under conditions with favor autotoxicitv such as the seedbed than in single pot crown-grown.

关 键 词：AUTOTOXICITY biomass partitioning CYTOKININS propagation root restriction. 

分 类 号：S644.6[农业科学—蔬菜学] TQ320.725[农业科学—园艺学]