Study on the Methods of Removing Dormancy and Promoting Seedlings of Tilia amurensis

doi:10.13466/j.cnki.lyzygl.2020.01.023

Abstract

Abstract:

Different soaking methods,GA3 application and stratified germination experiments were used to study the dormancy removing methods of Tilia amurensis seeds.The results show that:warm water(7d)+GA₃+Freezing(13-18℃,30d;Freezing,60d;-2-2℃,60d)was the best treatment combination,the germination rate and seedling emergence rate were 84.7% and 79.5%,the seedlings emerged neatly(whole seedling for 25 days);and the quality of seedlings was good,the one-year-old average seedling height and ground diameter were 0.55M and 0.56cm,the main root length was 25.5cm and the lateral root length was 25.GA₃ soaking seed can promote the removing dormancy of Tilia amurensis seeds,the effect of stratification germination that the freezing effect of indoor high temperature+outdoor freezing+low temperature cellar is the best,followed by high and low temperature change,low temperature cellar effect again,and indoor heat is the worst.The results showed that Tilia amurensis belong to combinational dormancy,seed dormancy could be effectively removed by soaking seeds+GA₃+reasonable stratification.

Key words: Tilia amurensis, stratification, remove dormancy, seedling raising, seedling quality

CLC Number:

S723.1

Youzhi HAN. Study on the Methods of Removing Dormancy and Promoting Seedlings of Tilia amurensis[J]. FOREST RESOURCES WANAGEMENT, 2020, 0(1): 177-182.

Figures/Tables 4

Tab.1

Tab.2

Tab.3

Tab.4

References 25

[1]	李延生 . 辽宁树木志[M]. 北京: 中国林业出版社, 1990.
[2]	杨立学, 王海南, 范晶 , 等. 解除紫椴种子休眠技术的研究[J]. 北京林业大学学报, 2011(6):130-134.
[3]	罗丽芬, 王凤霞, 赵垦田 , 等. 紫椴种子快速催芽育苗试验研究[J]. 东北林业大学学报, 1990(2):103-108.
[4]	邹学忠, 阎忠林, 刘清田 , 等. 紫椴种子休眠原因及催芽处理方法的研究[J]. 辽宁林业科技, 1991(5):6-10.
[5]	王九龄, 杨建平 . 紫椴种子休眠原因的初步研究[J]. 林业科学, 1981(3):317-324.
[6]	张洁, 杨立学, 王海南 , 等. 紫椴种皮透性及种子浸提物生物效应的研究[J]. 森林工程, 2015(2):1-4.
[7]	孙斌, 纪书琴 . 紫椴种子萌发抑制物的研究[J]. 防护林科技, 2009(4):34-35.
[8]	邹阳 . 紫椴种子浸提液对白菜种子萌发的影响[J]. 现代园艺, 2018(1):17.
[9]	Baskin C C, Baskin J M. Seeds:ecology,and evolution of dormancy and germination[M]. San Diego: Academic Press, 2001.
[10]	Heit C E . Propagation from seed:Collecting,testing and growing Tilia linden species[J]. American Nurseryman, 1977,146(7):10-11.
[11]	Suszka B, Muller C, Bonnet-Masimbert M . Seeds of forest broadeaves,from harvest to sowing[M]. France:Institut National dela Recherche Agronomique, 1996.
[12]	雷志, 葛宝福, 孙国娟 , 等. 紫椴种子层积催芽处理新法[J]. 吉林林业科技, 2007,36(2):20-21.
[13]	王正生, 赵云, 刘福金 , 等. 生长素在紫锻种子处理中的应用试验[J]. 吉林林业科技, 1998(2):9-10.
[14]	郑金辉, 林士杰, 张艳敏 , 等. NaOH处理对紫锻种子休眠解除及生理生化特性的影响[J]. 中国农学通报, 2014,30(16):35-40.
[15]	赵玉慧, 李森 . 解除紫椴种子休眠方法的研究[J]. 林业科技, 1990(5):17-18.
[16]	杨顺, 林英飞 . 紫锻种子变温催芽法[J]. 内蒙古林业, 1992(2):28-29.
[17]	韩友志, 邢兆凯, 顾宇书 , 等. 浑河上游白桦冷杉等4种林分枯落物储量及持水特性[J]. 东北林业大学学报, 2011(11):15-18.
[18]	王海南 . 紫椴种子休眠机理及休眠解除技术的研究[D]. 哈尔滨:东北林业大学, 2012.
[19]	Bewley J D, Black M. Seeds:physiology of development and germination[M]. New York: Plenum Press, 1994.
[20]	Nikolaeva M G. Factors controlling the seed dormancy pattern.In:Khan,A A(Ed.),The Physiology and Biochemistry of Seed Dormancy and Germination[M]. North-Holland: Amsterdam, 1977: 51-74.
[21]	Jerry M.Baskin, Carol C . Baskin.A classification system for seed dormancy[J]. Seed Science Research, 2004,14(1):1-16. doi: 10.1079/SSR2003150
[22]	张志权, 廖文波, 钟翎 , 等. 南方红豆杉种子萌发生物学研究[J]. 林业科学研究, 2000,13(3):280-285.
[23]	Mehanna Hussein T., Martin George C., Nishijima Chic . Effects of temperature,chemical treatments and endogenous hormone content on peach seed germination and subsequent seedling growth[J]. Scientia Horticulturae, 1985,27(1-2):63-73. doi: 10.1016/0304-4238(85)90056-1
[24]	有祥亮, 余新晓, 张德顺 , 等. 欧洲银叶锻种子快速解除休眠的技术[J]. 林业科学, 2008,44(4):161-166. doi: 10.11707/j.1001-7488.20080429
[25]	史英范, 许兴午, 董立才 . 紫椴种子三种催芽处理方法比较[J]. 林业科技, 1982(4):8-9.

处理	发芽率/%	出苗率/%	出全苗时间/d
H₂SO₄(30min)+窖藏(0~4℃,30d)	19.7Aa	12.5Aa	33
H₂SO₄(30min)+室内(13~18℃,30d)	11.3Bb	7.2Bb	32
H₂SO₄(30min)+高低变温(室内13~18℃,10d;窖藏0~4℃,20d)	24.5Cc	18.9Cc	29
H₂SO₄(30min)+GA₃+窖藏(0~4℃,30d)	60.5Dd	55.8Dd	30
H₂SO₄(30min)+GA₃+室内(13~18℃,30d)	18.5Aa	11.3Aa	28
H₂SO₄(30min)+GA₃+高低变温(室内13~18℃,10d;窖藏0~4℃,20d)	78.8Ee	71.6Ee	27
温水(7d)+窖藏(-2~2℃,150d)	44.5Ff	38.4Ff	35
温水(7d)+高低变温(室内13~18℃,30d;窖藏-2~2℃,120d)	50.6Gg	44.8Gg	33
温水(7d)+室内(13~18℃,30d)+室外冷冻(60d)+窖藏(-2~2℃,60d)	79.4Ee	73.6Ee	30
温水(7d)+GA₃+窖藏(-2~2℃,150d)	52.7Gg	45.7Gg	30
温水(7d)+GA₃+高低变温(室内13~18℃,30d;窖藏-2~2℃,120d)	58.9Dd	52.3Dd	26
温水(7d)+GA₃+室内(13~18℃,30d)+室外冷冻(60d)+窖藏(-2~2℃,60d)	84.7Hh	79.5Hh	25

处理	平均苗高/m	平均地径/cm	主根长/cm	侧根条数/条
H₂SO₄(30min)+GA₃+窖藏(0~4℃,30d)	0.47±0.28Aa	0.51±0.22Aa	23.6	21
H₂SO₄(30min)+GA₃+高低变温(室内13~18℃,10d;窖藏0~4℃,20d)	0.48±0.31Aa	0.52±0.20Aa	23.3	22
温水(7d)+室内(13~18℃,30d)+室外冷冻(60d)+窖藏(-2~2℃,60d)	0.54±0.25Bb	0.55±0.15Bb	24.8	25
温水(7d)+GA₃+室内(13~18℃,30d)+室外冷冻(60d)+窖藏(-2~2℃,60d)	0.55±0.29Bb	0.56±0.19Bb	25.5	26