中国中药杂志

2010, v.35(06) 673-675

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屏边三七结实特性和种子后熟的研究
Characteristics of fructification and seed ripening of Panax stipuleanatus

陈中坚;黄天卫;孙玉琴;崔秀明;周世良;韦美丽;
CHEN Zhongjian 1,3,HUANG Tianwei1,SUN Yuqin1,CUI Xiuming 1*,ZHOU Shiliang2,WEI Meili1(1.Yunnan Sanqi Agricultural Engineering Laboratory,Institute of Cultivation Wenshan Sanqi Research Academy,Wenshan 663000,China;2.State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;3.Technology center,Wenshan Miaoxiang Notoginseng Co.,Ltd.,Wenshan 663000,China)

摘要(Abstract):

目的:了解屏边三七的结实和种子后熟特性,为屏边三七的生物学特性研究和家化种植提供基础。方法:持续80 d观测屏边三七的结实动态,统计存在的果实类型及比例。测定种子生物学性状,持续225 d观察种胚在后熟过程中的活力及胚的变化。结果和结论:屏边三七平均结实(38.7±6.5)粒/株,子房膨大期后需要80 d完全成熟,其中040 d为果实快速生长期,鲜重增幅15倍。屏边三七存在单籽、双籽、三籽共3种果实类型,比例分别为39.53%,58.66%,1.81%。屏边三七的种子长5.1640 d为果实快速生长期,鲜重增幅15倍。屏边三七存在单籽、双籽、三籽共3种果实类型,比例分别为39.53%,58.66%,1.81%。屏边三七的种子长5.166.52 mm、宽3.126.52 mm、宽3.124.95 mm,千粒重为(0.648±0.014)g,含水率为(55.23±0.49)%。屏边三七的种子属于形态后熟,种子脱离母体后,在自然条件下至75 d发育出种胚,至1654.95 mm,千粒重为(0.648±0.014)g,含水率为(55.23±0.49)%。屏边三七的种子属于形态后熟,种子脱离母体后,在自然条件下至75 d发育出种胚,至165180 d种胚才发育成熟,此时种子的后熟完成,种胚活力最高达70%,种胚长(3.217±0.406)mm,种胚宽(0.872±0.165)mm。至195 d进入发芽期。
Characteristics of fructification and seed ripening of Panax stipuleanatus were studied in this paper with a view to better understand the species′ biological characteristics and promote cultivation.Dynamic of fructification and types of fruits were observed in a period of 80 days.The seeds′ biological characteristics were evaluated by observing embryo′s vitality and changes in form in a period of 225 d.The findings and conclusions were as follows: A plant produces an average of(38.7±6.5) seeds;Seeds become fully mature 80days after setting fruit,and fruits grow more rapidly in 0-40 days with an increase of 1 500.83% in fresh weight.Three types of fruits were found,that is mono-seed type,bi-seeds type and triple-seeds type,and the proportion is 9.53%,58.66%,1.81%,respectively.The seeds are(5.16-6.52) mm in length and(3.12-4.95)mm in width.,The weight of 1 000 seeds is(0.648±0.014)g with an moisture content of(55.23±0.49)%.The after-ripening of embryo in Panax stipuleanatus is morphological form,embryos develop 75 days after the seeds′ detaching from mother plant and become mature in 165-180 days with the ending of the process of after-ripening.The vitality of embryo reaches 70%,and the length of embryo is(3.217±0.406)mm and the width(0.872±0.165) mm.The seeds will germinate in 195 d.

关键词(KeyWords): 屏边三七;结实特性;种胚后熟
Panax stipuleanatus;characteristics of fructification;after-ripening of embryo

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划项目(2006BAI06A12-14);; 云南省人才培引计划项目(2006PY02-33);; 云南省重点产业创新工程(2008IF006)

作者(Authors): 陈中坚;黄天卫;孙玉琴;崔秀明;周世良;韦美丽;
CHEN Zhongjian 1,3,HUANG Tianwei1,SUN Yuqin1,CUI Xiuming 1*,ZHOU Shiliang2,WEI Meili1(1.Yunnan Sanqi Agricultural Engineering Laboratory,Institute of Cultivation Wenshan Sanqi Research Academy,Wenshan 663000,China;2.State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;3.Technology center,Wenshan Miaoxiang Notoginseng Co.,Ltd.,Wenshan 663000,China)

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