植物生长调节剂对抗逆菊扦插苗生长的影响

打开文本图片集

Effectsof plant growth regulatorson the growth of cuttings of adversity-resistantChrysanthemum

ZHANG Ge1，2BAI Jiejie3 CHEN Weiyu1

（ Ningxia Technical College of Wine and Desertification Prevention，Yinchuan 75oooo， China； 2Yinchuan Aibida Horticulture Co.，Ltd.， Yinchuan 75oooo， China； 3Yinchuan Yongning County Agricultural Comprehensive Law Enforcement Brigade， Yinchuan 75ooo，China）

AbstractTo investigate the effectsof plant growth regulators on thegrowth ofcutings of adversity-resistant Chrysanthemum，plant growth regulators were used to treat the cuttings ofyellow-floweredand pink-flowered chrysanthemums with resistant conditions，and theyelow-flowered andadversity-resistant Chrysanthemumtreated with clear water wereusedas the control （CK），the crownwidth，plant height above ground growth indicators，root length，rot width and other underground growth indicators，above ground biomassand underground biomass were measured，principal component analysis and structural equation modelanalysis were conducted.The results showed that plant growth regulators can promote the growth and development of theplant.Compared with yellw flowers，pink flowersshowed higher sensitivity toplantgrowthregulators.After treatment with plant growthregulator，theleaf number and root width of pink flower were increased by 16.3% and 23.2% ，respectively，compared with yellow flower. Compared with CK，the aboveground biomassand underground biomass increased1.3 times and1.4 times， respectively.The response of aboveground part of pink flower and underground part of yelow flower were obvious to plant growth regulators.Principal component analysisshowed that theabovegroundbiomassof adversity-resistant Chrysanthemum had obvious response to plant growth regulators.The structural equation model showed that the aboveground biomass was directlyaffcted bycrownwidthand leaf number，while theundergroundbiomassof adversity-resistantChrysanthemumwasdirectlyaffectedbyrootlength

Keywordsadversity-resistant Chrysanthemum； cuting seedlings； plant growth regulator； growth and development

抗逆菊属菊科（Asteraceae）菊属（Chrysanthemum），是通过杂交育种培育出的菊花品种l。（剩余4489字）