蓖麻3种类型花序发育过程的显微学比较研究  

Comparative Study of Inflorescence Development in Three Types of Castor on Microscopy

作　　者：黄凤兰[1,2] 朱国立[1,2,3] 潘微彤[4] 何智彪[2,3] 包春光 彭木[1,6] 王文跃[2,5] 张智勇[2,3] 张现世 

机构地区：[1]内蒙古民族大学生命科学学院,内蒙古通辽028000 [2]内蒙古自治区高校蓖麻产业工程技术研究中心,内蒙古通辽028000 [3]通辽市农业科学研究院,内蒙古通辽028000 [4]中国药科大学药学院,南京211100 [5]内蒙古民族大学农学院,内蒙古通辽028000 [6]东北林业大学生命科学学院,黑龙江哈尔滨150040

出　　处：《内蒙古农业科技》2014年第4期10-13,19,共5页Inner Mongolia Agricultural Science and Technology

基　　金：国家农业部公益性行业专项(201003057);国家自然科学基金(30760123;31160290;31060194);国家民委项目(10NM02);内蒙古自然科学基金项目(2010BS0511);内蒙古人才基金项目;内蒙古民族大学市校合作项目(SXZD2012018)

摘　　要：试验以Lm型蓖麻—矮秆Lm型雌性系的两用系aLmAB2为研究对象,在显微学水平上研究其后代两性、单雌、标雌系3种类型花序分化过程中的差异,确定植株由营养生长到生殖生长转变的关键时期,以期为东北生态型蓖麻的栽培育种研究提供参考依据。试验结果表明：aLmAB2蓖麻的3种花序类型花芽分化的转变期在5~6片真叶期;花序为圆锥花序,花序上的小花排列紧密程度为两性系〉单雌系〉标雌系,锥底直径大小排序为两性系〉单雌系〉标雌系,不完全花;在7片真叶期时开始出现柳叶状功能叶。This study used Castor cuhivar Lm-aLmAB2 as object for research inflorescence differentiation of its three types progeny in microscopic level and confirmed the critical transitional period from vegetative growth to reproductive growth. We also provided a reference for ectopically cultivation and breeding of castor in northeast region. The results were as follows： the climacteric of flower bud differentiations in different types were about 5 to 6-leaf stage; castor inflorescence was panicle,the tight arrangement of floret followed by bisexual line, isofemale line,female line;the diameter of inflorescence in bisexual line was largest than isofemale line and female line;flower was incomplete;the specificity salix-shaped leaf occurred at 7-leaf.

关 键 词：蓖麻 花序发育 标雌系 单雌系 两性系 

分 类 号：S565.6[农业科学—作物学]