GA_3、IAA和ABA对棉花果枝节间长度作用的研究
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- 英文论文题名：The Effect of GA_3,IAA and ABA on Cotton Fruiting Branch Internode Length
- 论文作者：栗战帅 ; 魏恒玲 ; 庞朝友 ; 王寒涛 ; 马启峰 ; 范术丽 ; 喻树迅
- 英文论文作者：Li Zhanshuai ; Wei Hengling ; Pang Chaoyou ; Wang Hantao ; Ma Qifeng ; Fan Shuli ; Yu Shuxun ; Institute of Cotton Research of CAAS/State Key Laboratory of Cotton Biology
- 年：2017
- 作者机构：中国农业科学院棉花研究所/棉花生物学国家重点实验室;
- 论文关键词：棉花 ; 果枝节间长度 ; 植物激素 ; 切片 ; 细胞
- 英文论文关键词：cotton ; fruiting branch internode length ; hormone ; section ; cell
- 会议召开时间：2017-08-07
- 会议录名称：中国农学会棉花分会2017年年会暨第九次会员代表大会论文汇编
- 语种：中文
- 分类号：S562
- 学会代码：MHXB
- 会议名称：中国农学会棉花分会2017年年会暨第九次会员代表大会
- 会议地点：中国河南郑州
- 主办单位：中国农学会棉花分会
- 学会名称：《棉花学报》编辑部
- 页数：2
- 文件大小：97k
- 原文格式：O
- 会议级别：全国
摘要
棉花是我国重要的经济和战略物资,但是随着我国工业化进程的不断加快,棉花生产过程中劳动力日渐紧缺,造成国内棉花种植面积逐渐减少。解决棉花生产过程中的劳动力问题,稳定国内棉花种植面积的关键是发展和提高棉花生产机械化水平。合理的株型是机械化采收的关键,也是合理密植、提高产量的关键。因此,对影响棉花株型的果枝节间长度性状进行研究具有重要的意义和价值。本研究以有限果枝类型的棉花中2549(长果枝节间材料)和中5081(短果枝节间材料)为试验材料,通过测定2个试验材料的内源激素含量以及喷施不同的外源激素,来探究不同果枝节间长度棉花的内源激素差异和喷施外源激素对棉花果枝节间长度的影响;同时对2个材料的果枝节间组织进行切片处理观察其细胞水平上的差异。研究结果显示:中2549的内源激素GA_3、IAA和ABA的含量都高于中5081,最高分别达到了4.13倍、6倍和2.63倍,都达到了极显著水平;喷施外源激素GA_3、IAA和ABA后都能促进棉花果枝节间伸长,分别平均伸长了11.45%、10.15%和52.74%,也都达到了极显著水平;同时切片结果表明中2549的果枝节间组织细胞明显比中5081的果枝节间组织细胞大,但细胞数量明显比中5081的少。喷施激素抑制剂的结果表明GA_3抑制剂缩节胺以及IAA抑制剂TIBA能使棉花果枝节间的长度显著变短,分别平均变短16.60%和20.63%,同样都达到了极显著水平;而喷施ABA抑制剂钨酸钠,其果枝节间长度没有发生显著性变化,由此结果表明GA_3和IAA对棉花果枝节间长度的影响比较大。本研究发现了影响棉花不同果枝节间长度的内源激素以及细胞水平上的差异,为进一步深入研究棉花果枝节间长度差异机制提供了一定的依据和参考;对棉花株型品种的选育提供一定的理论基础,对棉花采收的生产发展具有一定的意义。
Cotton is one of the most important commercial and strategical material in China.However,with the accelerating process of industrialization in our country,the cotton farmers are gradually decreasing,thus the planting areas of cotton reduce gradually.To solve the problem of shortage of labor,the key is to develop and improve the level of mechanization in the process of cotton production.Reasonable plant architecture is not only the key to the mechanized harvesting,but also the reasonable planting density and increasing production.Therefore,it is of great significance to study the length of the cotton fruiting branch internode.In this research,Zhong 2549(long branch internode) and Zhong 5081(short branch internode) were used to detect the endogenous hormones of the fruiting branch internode.Moreover,the effects of exogenous hormones(GA_3,IAA and ABA) on the length of internode were also studied.In addition,the mepiquat-chlorides,TIBA and sodium wolframate which are the inhibitors of GA_3,IAA and ABA,respectively,also sprayed on the two materials.The paraffin section technique was used to detect the cell morphology of the fruiting branch internode of two materials.The results showed that the content of endogenous hormones GA_3,IAA and ABA in Zhong 2549 were4.13 times,6 times and 2.63 times as much as those in Zhong 5081,respectively.Spraying exogenous hormones GA_3,IAA and ABA could promote the fruiting branch internode elongation,the lengths could be increased by 11.45%,10.15%and 52.74%,respectively.The result of paraffin section showed that the cell size of Zhong 2549 was bigger than Zhong 5081,and the cell density of Zhong 2549 was less than Zhong5081.The mepiquat-chlorides and TIBA which are the inhibitor of GA_3 and IAA,respectively,can signific antly decrease the length of fruiting branch internode,the lengths can be decreased by 16.60%and 20.63%,respectively.However,the sodium wolframate treatment had little effect on cotton fruiting branch internode length.Thus the results showed that GA_3 and IAA could have more influence on the cotton fruiting branch internode length.This study found the key endogenous hormones which affect the fruiting branch internode length and the discrepancy of different fruiting branch internode length in cellular level.This study provides a theoretical basis for cotton plant architecture breeding and has some significance for the cotton harvest production.
Cotton is one of the most important commercial and strategical material in China.However,with the accelerating process of industrialization in our country,the cotton farmers are gradually decreasing,thus the planting areas of cotton reduce gradually.To solve the problem of shortage of labor,the key is to develop and improve the level of mechanization in the process of cotton production.Reasonable plant architecture is not only the key to the mechanized harvesting,but also the reasonable planting density and increasing production.Therefore,it is of great significance to study the length of the cotton fruiting branch internode.In this research,Zhong 2549(long branch internode) and Zhong 5081(short branch internode) were used to detect the endogenous hormones of the fruiting branch internode.Moreover,the effects of exogenous hormones(GA_3,IAA and ABA) on the length of internode were also studied.In addition,the mepiquat-chlorides,TIBA and sodium wolframate which are the inhibitors of GA_3,IAA and ABA,respectively,also sprayed on the two materials.The paraffin section technique was used to detect the cell morphology of the fruiting branch internode of two materials.The results showed that the content of endogenous hormones GA_3,IAA and ABA in Zhong 2549 were4.13 times,6 times and 2.63 times as much as those in Zhong 5081,respectively.Spraying exogenous hormones GA_3,IAA and ABA could promote the fruiting branch internode elongation,the lengths could be increased by 11.45%,10.15%and 52.74%,respectively.The result of paraffin section showed that the cell size of Zhong 2549 was bigger than Zhong 5081,and the cell density of Zhong 2549 was less than Zhong5081.The mepiquat-chlorides and TIBA which are the inhibitor of GA_3 and IAA,respectively,can signific antly decrease the length of fruiting branch internode,the lengths can be decreased by 16.60%and 20.63%,respectively.However,the sodium wolframate treatment had little effect on cotton fruiting branch internode length.Thus the results showed that GA_3 and IAA could have more influence on the cotton fruiting branch internode length.This study found the key endogenous hormones which affect the fruiting branch internode length and the discrepancy of different fruiting branch internode length in cellular level.This study provides a theoretical basis for cotton plant architecture breeding and has some significance for the cotton harvest production.
引文