Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (28): 86-92.doi: 10.11924/j.issn.1000-6850.casb17070021

Special Issue: 园艺

Previous Articles     Next Articles

Dwarfing Mechanism of Apple Dwarf Rootstock: Research Progress

  

  • Received:2017-07-06 Revised:2017-09-27 Accepted:2017-08-30 Online:2017-10-24 Published:2017-10-24

Abstract: For apple, cultivation under dwarf and closing planting is the development trend of modern production, but the dwarfing mechanism of rootstock which is the main way to realize it has not been revealed, revealing the mechanism is very significant for improving dwarf breeding and cultivation techniques. Dwarfing mechanism of apple rootstock were summarized in dwarf gene, anatomy structure, moisture content, substances transportation, photosynthetic characteristics, enzymes and phenolic, hormones, the dwarfing place and mechanism were discussed. It was summarized and pointed out that apple rootstock dwarfing was the comprehensive effect of graft cut, rootstock xylem and phloem, that grafted shoot as dwarf rootstock was the main dwarfing place, that apple dwarf rootstock might be play the role by affecting root growth. In the future, we should more precisely and more microscopically compare the difference between shoot anatomy of high rootstock and dwarf rootstock by advanced micro-instruments and measuring software, analyze the physiological and biochemical changes of different dwarf rootstock during metabolism of water, mineral nutrition, assimilate in condition of as much consistent environment and material as possible, study further systematically the role played by material synthesis, signal transduction, degradation and interaction of plant hormones in dwarfing, then study and verify the raised problem by research from many aspects, for explaining the dwarfing mechanism of rootstock more clearly. Key words: apple; dwarf stock; dwarfing mechanism

CLC Number: