|Table of Contents|

Effects of Exogenous GA3 on Seed Germination and Seedling Growth of Tagetes erecta L.Under Salt Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年16
Page:
69-75
Research Field:
Publishing date:

Info

Title:
Effects of Exogenous GA3 on Seed Germination and Seedling Growth of Tagetes erecta L.Under Salt Stress
Author(s):
WEI Chaomei; HU Xiaojing; MO Huan
(College of Agriculture，Guizhou University，Guiyang，Guizhou 550025)
Keywords:
GA3; salt stress; Tagetes erecta L.; seedling growth; physiological index
PACS:
-
DOI:
10.11937/bfyy.20220839
Abstract:
Taking the seeds of the yellow marigold cultivar in the ‘Antigua’ series as the test material，the petri dish germination method and plug seedling method were carried out,the seeds and seedlings were subjected to salt stress at different concentrations (0(CK)，50，100，200，400 mg·L-1) GA3 treatment，samples were collected regularly，germination indicators，seedling agronomic traits，stress resistance physiological and biochemical indicators were observed，the effect of exogenous GA3 on Tagetes erecta L.seeds under salt stress effects of germination and seedling growth was studied,in order to screen the optimal GA3 concentration for mitigating salt damage to Tagetes erecta L.seeds and seedlings.The results showed that the germination of Tagetes erecta L.seeds and the growth of seedlings were inhibited by salt stress，and the value of each treatment index was significantly lower than that of the control；with the increase of GA3 concentration，the germination rate，germ length，radicle length，seedling height，root length，the indexes such as chlorophyll content，peroxidase and superoxide dismutase activities generally showed a trend of first increasing and then decreasing；salt damage index and malondialdehyde content showed a trend of first decreasing and then increasing.The application of medium and low concentrations of exogenous GA3 can significantly reduce the damage to Tagetes erecta L.seeds and seedlings under salt stress，and the concentration of 100 mg·L-1 GA3 could best alleviate the inhibitory effect of salt stress on its growth.An appropriate concentration of exogenous GA3 can enhance the salt tolerance of Tagetes erecta L.seeds and seedlings and promote their growth.

References:

[1]赵德柱，李云海，陈丽华，等.万寿菊应用价值及丰产栽培技术[J].现代农业科技，2010(13):146,150.[2]田治国，王飞.不同品种万寿菊对镉胁迫的生长和生理响应[J].西北植物学报，2013，33(10):2057-2064.[3]HE Y H，NING G G，SUN Y L，et al.Cytological and mapping analysis of a novel male sterile type resulting from spontaneous floral organ homeotic conversion in marigold (Tagetes erecta L.)[J].Molecular Breeding，2010(1):19-29.[4]RONG T，WANG M，DENG Z.Antioxidant measurent and applications[J].ACS Publications,2007,956:352-372.[5]贾建伟.高温和盐胁迫对万寿菊种子发芽影响研究[J].农家顾问，2014(15):26.[6]刘莉.盐胁迫下植物激素对水稻种子萌发及幼苗根系生长的调控机理研究[D].武汉：华中农业大学，2018.[7]张磊，侯云鹏，王立春.盐碱胁迫对植物的影响及提高植物耐盐碱性的方法[J].东北农业科学，2018，43(4):11-16.[8]LOMBARDI T,LUPI B.Effect of salinity on the germination and growth of Hordeum secalinum Schreber (Poaceae) in relation to the seeds after-ripening time[J].Atti della Societa Toscana di Scienze Naturali,Memorie Serie B,2006,113(5):37-42.[9]王菲，谭怡，吕亚茹，等.水杨酸和赤霉素预处理对NaCl胁迫下神香草种子萌发的影响[J].草地学报，2021，29(12):2862-2870.[10]王楠，高静，黄文静，等.赤霉素浸种时长和施用浓度对重度干旱和盐胁迫下黄芪幼苗发育的影响[J].生态学杂志，2019，38(9):2693-2701.[11]高添乐，陈丹仪，李云峰，等.外源赤霉素对盐胁迫下甜玉米幼苗生理性状的影响[J].种子，2019，38(6):48-50.[12]杨彬，张文斌，李翊华，等.外源GA3对盐胁迫下板蓝根种子萌发及幼苗生理生化指标的影响[J].土壤，2016，48(6):1139-1143.[13]杨晓平，陈修斌，李翊华，等.赤霉素对盐胁迫下甘蓝种子萌发及幼苗生长的影响[J].安徽农业科学，2017，45(33):42-44.[14]于林林.NaCl胁迫下外源生长物质对甜高粱种子萌发及幼苗生长的调节作用[D].扬州:扬州大学，2017.[15]牛宋芳，王利娟，刘秉儒.赤霉素对盐胁迫下红砂种子萌发的影响[J].草业学报，2017，26(6):89-97.[16]张丽丽，倪善君，张战，等.外源赤霉素对盐胁迫下水稻种子萌发及幼苗生长的缓释效应[J].中国稻米，2018，24(2):42-46.[17]刘淑贤.几种露地花卉种子萌发期耐盐性研究[J].内蒙古民族大学学报(自然科学版)，2002(3):228-230.[18]张桂玲.盐胁迫下8种草花种子萌发特性的比较[J].作物杂志，2011(6):110-112.[19]刘敏，厉悦，梁艳，等.不同浓度氯化钠胁迫对万寿菊幼苗生长及生理特性的影响[J].北方园艺，2013(24):63-66.[20]刘敏，厉悦，毛子军，等.盐分和温度对万寿菊种子发芽的影响[J].草业科学，2014，31(6):1104-1109.[21]段九菊，张超，郑梅梅，等.万寿菊不同品种的耐盐性综合评价[J].核农学报，2015，29(7):1406-1418.[22]王永路，孙正海，邓艳，等.盐胁迫提高金盏菊和万寿菊的耐盐性[J].江苏农业科学，2016,44(8):269-272.[23]张青瑞，崔瑶，施卫省.激素处理种子对万寿菊发芽和幼苗生长的影响[J].土壤与作物，2016，5(1):54-59.[24]孙晨.3种植物生长调节剂对百日草及万寿菊生长发育的影响[D].长春:吉林农业大学，2018.[25]KUMAR P，SINGH A，LAISHRAM N，et al.Effects of plant growth regulators on quality flower and seed production of marigold (Tagetes erecta L.)[J].Bangladesh J Bot,2020，49(3)：567-577.[26]高俊凤.植物生理学实验指导[M].北京:高等教育出版社，2006.[27]李晓燕，宋占午，董志贤.植物的盐胁迫生理[J].西北师范大学学报(自然科学版)，2004(3):106-111.[28]赵艳艳，胡晓辉，邹志荣，等.不同浓度5-氨基乙酰丙酸(ALA)浸种对NaCl胁迫下番茄种子发芽率及芽苗生长的影响[J].生态学报，2013(1)：62-70.[29]贺奇，王昕，马洪文，等.盐胁迫下粳稻种子发芽特性及耐盐性评价[J].中国稻米，2018，24(1):28-32.[30]张新春，庄炳昌，李自超.植物耐盐性研究进展[J].玉米科学，2002，10(1)：50-56.[31]郑世英，陈吉美.植物的抗盐生理[J].德州高专学报，2000，16(4)：39-40.[32]陈碧华，罗庆熙，张百俊．热激处理对甘蓝幼苗叶片保护酶活性和膜透性的影响[J]．华北农学报，2006，21(5):6-8.[33]刘志洋，刘岩，张晓明，等.盐胁迫对万寿菊脯氨酸、丙二醛含量影响的研究[J].吉林农业，2016(19):85.

Memo

Memo:
-
Last Update: 2022-10-10