短筒紫苞鸢尾种子萌发特性的研究
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摘要
以短筒紫苞鸢尾(Iris ruthenica Ker.-Gawl.var.brevituba Maxim)种子为实验材料,利用温度、光照、低温处理等方法对该种子萌发特性进行研究。结果表明,胚乳中含有醇溶性抑制物;种子萌发最适温度为25℃,月萌发率为54%,恒温效果优于变温,且为嫌光性种子;NaOH、赤霉素、低温处理均能打破种子休眠,其中,NaOH浓度2%效果最佳,萌发率为85%,赤霉素浓度400mg/L效果最佳,萌发率为91%,低温沙藏40、60、80d萌发率差异不显著,约为86%左右,但沙藏80d初始萌发时间最短。
Iris ruthenica Ker.-Gawl.var.brevituba Maxim seeds were used as experimental material,the seed germination characteristics were studied by using the methods of temperature,light,low temperature treatment.The results showed that there were alcohol soluble inhibitors in endosperm.Seed germination optimum temperature was 25℃,the monthly germination rate was 54%,and the effect of constant temperature was better than that of variable temperature,and it belonged to shaden seed;NaOH,gibberellin,cryogenic treatment can break seed dormancy,among them,2% NaOH concentration effect was the best,the germination rate was 85%,400 mg/L gibberellin concentration effect was the best,the germination rate was 91%,there were no significant differences of germination rate,when the seeds were hidden in sand of low temperature for 40 d,60d,80 d,the germination rate was about 86% or so,but the initial germination time was the shortest after the seeds were hidden in sand for 80 d.
Iris ruthenica Ker.-Gawl.var.brevituba Maxim seeds were used as experimental material,the seed germination characteristics were studied by using the methods of temperature,light,low temperature treatment.The results showed that there were alcohol soluble inhibitors in endosperm.Seed germination optimum temperature was 25℃,the monthly germination rate was 54%,and the effect of constant temperature was better than that of variable temperature,and it belonged to shaden seed;NaOH,gibberellin,cryogenic treatment can break seed dormancy,among them,2% NaOH concentration effect was the best,the germination rate was 85%,400 mg/L gibberellin concentration effect was the best,the germination rate was 91%,there were no significant differences of germination rate,when the seeds were hidden in sand of low temperature for 40 d,60d,80 d,the germination rate was about 86% or so,but the initial germination time was the shortest after the seeds were hidden in sand for 80 d.
引文
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[23]Sun Y C,Zhang Y J,Wang K.NaOH Scarification and Strati-fication improve Germination of Iris lactea Pall.var.chinensis seed[J].Hort Science,2006,41(3):773-774.
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[25]何学青,胡小文,王彦荣.羊草种子休眠机制及破除方法研究[J].西北植物学报,2010,30(1):120-125.
[26]Baskin J M,Baskin C C.A classification system for seed dormancy[J].Seed Science Research,2004,14:1-16.
[27]路覃坦,张金政,孙国峰,等.四种国产野生无髯鸢尾种子休眠类型的研究[J].草业学报,2009,18(2):130-137.
[2]牟少华,郄光发,彭镇华,等.我国鸢尾属植物种质资源的研究与利用[J].草业科学,2007,24(8):21-24.
[3]贺海洋,董玉芝,昝少平.新疆野生鸢尾的引种驯化及应用研究[J].园林科技信息,2005(4):2-8.
[4]赵毓堂.中国植物志(第十六卷·第一分册)[M].北京:科学出版社,1985.
[5]孙跃春.马蔺种子休眠解除技术与适宜萌发条件研究[D].北京:中国农业大学,2004.
[6]郭瑛,高亦珂.鸢尾属植物种子休眠原因及提高萌发率方法综述[J].种子,2006,25(2):42-45.
[7]吴啸峰.红豆杉种子抑制物质的初步研究[J].植物生理学通讯,1985(4):23-26.
[8]张丹,张金政,孙国峰.细叶鸢尾种子休眠原因及解除休眠的方法研究[J].草业学报,2011,20(6):109-117.
[9]肖月娥,俞新平,胡永红,等.西南鸢尾种子萌发特性初步研究[J].种子,2008,27(2):18-20.
[10]卓露,管开云,李文军.喜盐鸢尾种子休眠与萌发特性初步研究[J].干旱区研究,2014,31(4):739-743.
[11]伍碧华,颜济,周永红.种皮对扁竹兰鸢尾(Iris confusa)及其杂种种子萌发的抑制作用[J].四川农业大学学报,1998,16(3):51-54.
[12]张伟艳,王玲,卓丽环.东北3种野生鸢尾种子生物学比较研究[J].种子,2006,25(12):34-37.
[13]李苗,魏耀锋,宋玉霞.两种鸢尾属植物种子萌发的初步研究[J].北方园艺,2010(12):80-83.
[14]王晓晶.马蔺种子休眠机理及休眠解除技术的研究[D].内蒙古:内蒙古农业大学,2010.
[15]宋松泉,程红焱,姜孝成,等.种子生物学[M].北京:科学出版社,2008.
[16]Holloway P S.Seed Germination of Alaska Iris,Iris setosa ssp.Interior[J].Hortseienee,1987,22(5):898-899.
[17]Morgan M D.Seed germination characteristics of lris virginiea[J].Ameriean Midland Natoralist,1990,124(2):209-213.
[18]樊璐,李淑娟,张蕊莲.光照和种皮对有髯鸢尾种子萌发的影响[J].中国农学通报,2010,26(12):200-202.
[19]卢明艳,毕晓颖,郑洋.野鸢尾种子萌发特性的研究[J].种子,2009,28(7):90-93.
[20]刘冰,毕晓颖,郑洋.3种鸢尾属植物种子吸水及发芽特性研究[J].种子,2012,31(1):34-37.
[21]孙跃春,陈景堂,朱宝成.鸢尾属植物种子休眠及解除方法[J].种子,2011,30(10):98-99.
[22]孙颖.东北野生鸢尾属6种植物种子生物学及种苗发育过程的研究[D].哈尔滨:东北林业大学,2004.
[23]Sun Y C,Zhang Y J,Wang K.NaOH Scarification and Strati-fication improve Germination of Iris lactea Pall.var.chinensis seed[J].Hort Science,2006,41(3):773-774.
[24]刁晓华,高亦珂.四种鸢尾属植物种子休眠和萌发研究[J].种子,2006,25(4):41-44.
[25]何学青,胡小文,王彦荣.羊草种子休眠机制及破除方法研究[J].西北植物学报,2010,30(1):120-125.
[26]Baskin J M,Baskin C C.A classification system for seed dormancy[J].Seed Science Research,2004,14:1-16.
[27]路覃坦,张金政,孙国峰,等.四种国产野生无髯鸢尾种子休眠类型的研究[J].草业学报,2009,18(2):130-137.