摘要
运用正交实验设计,用不同水平的6-苄氨基嘌呤(6-BA)+赤霉素(GA_3)+肥种处理麻疯树茎尖,研究外源物质对麻疯树花芽分化及树体内营养物质的影响。结果表明:各处理对麻疯树成花数量有显著影响,6-BA(2 mg/L)+GA_3(50 mg/L)+肥种(氮)为最优促花组合,正交实验设计中以6-BA(0.5 mg/L)+GA_3(50 mg/L)+肥种(氮)的促花效果较好;GA_3是影响麻疯树成花的主要因子。处理促进营养生长和生殖生长,二者交错进行。处理株叶片内氮、可溶性糖、淀粉、C/N比、钾的含量和变化趋势均呈增加-降低-再增加的S型模式。磷的含量在早期达到最大,之后便持续下降。叶片内钾在最高含量是最低含量的4.8倍,变幅最大,磷和钾呈极显著正相关。枝条生长与叶片内可溶性糖含量显著负相关。
To understand the effect of allogeric material on flower bud differentiation and nutritive material of Jatropha cure as,different levels of 6-BA（6-benzylaminopurine）＋GA3（gibberellin）＋fertilizer were sprayed on the stem apex with orthogonal test.The results showed that it had obvious effect on promoting flower bud formation.The best combination in promoting flowering was 6-BA（2 mg/L）＋GA3（50 mg/L）＋N（urea1%）.Flower buds were borne most upon the stem tips treated with 6-BA（0.5 mg/L）＋GA3（50 mg/L）＋N（urea1%）.GA3 was the key factor in promoting flower bud formation.Treatments increased the rate of vegetative growth and reproductive growth alternatively.The leaf-status of N, K,sugar,starch and C/N changed in S-bend：increasing-decreasing-increasing.P content reached the highest after treatment and then steady declined.The maximum level of K was 4.8 times the minimum of itself.The content of P and K was significantly positive.Vegetative growth had a significant negative correlation with the content of soluble sugar.
出处
《北方园艺》
CAS
北大核心
2012年第12期47-50,共4页
Northern Horticulture
基金
贵州省重大专项资助项目(黔科合重大专项字(2007)6004-5)
教育部博士点基金资助项目(20070657001)
贵州省自然科学基金资助项目(黔科合J字[2010]2048号)
贵州省人才基地建设资助项目(黔人领发[2009]9号)
省创新团队资助项目(黔科合人才团队(2011))
关键词
麻疯树
生长调节剂
花芽分化
营养物质
Jatropha curcas
growth regulator
flower bud differentiation
nutritive material
作者简介
第一作者简介：王秀荣（1972-），女，在读博士，副教授，现主要从事森林培育和园林植物及遗传育种方面的教学与科研工作。
责任作者：丁贵杰（1960-），男，博士，教授，博士生导师，现主要从事森林培育的研究与教学工作。
