IAA对木薯生长及氮素吸收的影响
|
摘要
【目的】探究IAA对木薯生长及氮(N)素吸收的影响,为木薯栽培的化学调控研究提供理论依据。【方法】通过盆栽试验,以华南205为材料,分析低N处理94 d条件下外施IAA对木薯形态、干物质量、N含量和N积累量的影响及木薯各部位内源IAA含量的差异。【结果】与对照(低N处理)相比,低N条件下喷施IAA可使木薯株高、各部位N含量及N积累量显著提高; 94 d内,喷施IAA处理使木薯叶面积、总根系表面积及总根长分别增加8. 26%、20. 48%及20. 67%;通过比较木薯各部位内源IAA含量,发现叶面喷施IAA后根尖内源IAA含量下降,茎尖及叶片内源IAA含量显著增加。【结论】低N条件下叶面喷施IAA可显著提高木薯茎尖内源IAA含量,维持顶端优势和叶片代谢强度,促进木薯对N素的吸收以及转运,进而促进干物质累积,加快木薯生长。
【Objective】In order to provide more theoretical support on application of chemical control technology in cassava cultivation,the effect of IAA on growth and nitrogen( N) absorption of cassava was investigated.【Method】The effects of IAA on morphology,dry matter quality,N content and N accumulation and the difference of endogenous IAA content in different parts of cassava( Southern China 205) under low N treatment for 94 days were analyzed by pot experiment.【Result】Compared with CK( Low N without IAA),the plant height,leaf area and the dry matters of cassava sprayed with IAA were increased. At the 94 days of planting,the leaf area,total root surface area and total root length of cassava sprayed with IAA increased by 8. 26 %,20. 48 % and 20. 67 %,respectively. The treatment of sprayed with IAA on leaves induced the increase of the IAA contents in stem tip and leaf and the decrease of the root tip.【Conclusion】Under the low nitrogen condition,spraying IAA on the leaves could significantly increase the endogenous IAA content of the stem tip of cassava,maintain the growth advantage of stem tip and the metabolic intensity of leaves,promote the absorption and transport of cassava to nitrogen,and then promote the accumulation of dry matter and accelerate the growth of cassava.
【Objective】In order to provide more theoretical support on application of chemical control technology in cassava cultivation,the effect of IAA on growth and nitrogen( N) absorption of cassava was investigated.【Method】The effects of IAA on morphology,dry matter quality,N content and N accumulation and the difference of endogenous IAA content in different parts of cassava( Southern China 205) under low N treatment for 94 days were analyzed by pot experiment.【Result】Compared with CK( Low N without IAA),the plant height,leaf area and the dry matters of cassava sprayed with IAA were increased. At the 94 days of planting,the leaf area,total root surface area and total root length of cassava sprayed with IAA increased by 8. 26 %,20. 48 % and 20. 67 %,respectively. The treatment of sprayed with IAA on leaves induced the increase of the IAA contents in stem tip and leaf and the decrease of the root tip.【Conclusion】Under the low nitrogen condition,spraying IAA on the leaves could significantly increase the endogenous IAA content of the stem tip of cassava,maintain the growth advantage of stem tip and the metabolic intensity of leaves,promote the absorption and transport of cassava to nitrogen,and then promote the accumulation of dry matter and accelerate the growth of cassava.
引文
[1]黎贞崇,梁秀明.木薯作为我国燃料乙醇原料的潜力分析[J].酿酒科技,2010(4):31-33.
[2]张振文,陆小静,叶剑秋,等.木薯种植对土壤肥力影响的研究进展[J].南方农业学报,2008,39(5):639-643.
[3]韦剑锋,韦冬萍,胡江如,等.木薯氮素营养特性及氮肥施用的研究进展[J].贵州农业学报,2014,42(1):54-58.
[4]郑冬超,夏新莉,尹伟伦.生长素促进拟南芥At NRT1. 1基因表达增强硝酸盐吸收[J].北京林业大学学报,2013,35(2):80-85.
[5]王新亮.果树根系硝态氮信号响应关键基因的克隆与功能分析[D].泰安:山东农业大学,2012:1-5.
[6]段娜,贾玉奎,徐军,等.植物内源激素研究进展[J].中国农学通报,2015,31(2):159-165.
[7]刘彩红,李成云,朴光一,等. IAA和NAA对不同羊草种子发芽和幼苗生长的影响[J].黑龙江畜牧兽医,2011(9):79-81.
[8]张东方,张建国,黄卓烈,等.水稻幼穗i PAs、IAA与每穗粒数和结实率的关系[J].华南农业大学学报,2005,26(2):14-16.
[9]陈明灿,刘素云,秦拓,等.生长素和缩节胺对棉花生长发育及产量的影响[J].河南科技大学学报:农学版,1998(1):7-11.
[10]宁倩. IAA对水稻苗期生理特性和N、P养分吸收利用的影响[D].西安:西安建筑科技大学,2013:21-24.
[11]许自成,张婷,卢秀萍,等.打顶后施用生长素(IAA)和钾肥对烤烟碳氮代谢的影响[J].生态学杂志,2007(4):461-465.
[12]黄巧义,黄旭,唐拴虎,等.木薯营养与施肥研究进展[J].中国农业科技导报,2010,12(2):62-68.
[13]张永发,杜前进,张冬明,等.木薯营养规律的研究[J].湖南农业科学,2009(5):77-80.
[14]史春瑞,鲍士旦.土壤农化分析[M].北京:中国农业出版社,2000:213-216.
[15]唐尚格,夏玉先,裴炎.间接酶联免疫法测定植物内源激素[J].西南农业大学学报,1991,13(2):183-186.
[16]孟广目.生长素和细胞分裂素对拟南芥主根细胞分裂和伸长的影响[D].兰州:兰州大学,2010:12-22.
[17]马新,姜继元,董鹏,等.不同植物生长调节剂处理对文冠果种子萌发和幼苗生长的影响[J].河南农业科学,2017,46(4):104-107.
[18]胡玉玲,胡冬南,王伟峰,等.不同激素对油茶关键生长过程的调节机制初步研究[J].浙江林业科技,2011,31(2):32-37.
[19]陈静,刘连涛,孙红春,等.外源NO对缺氮胁迫下棉花幼苗形态及生长的调控效应[J].中国农业科学,2014,47(23):4595-4605.
[20]Overvoorde P,Fukaki H,Beeckman T. Auxin control of root devel-opment[J]. Plant Biology,2010,2(16):121-136.
[21]李欣欣,赵静,廖红.吲哚乙酸、吲哚丁酸和萘乙酸对大豆幼根生长的影响[J].植物生理学报,2013,49(6):573-578.
[22]段莎莎,徐冬梅,余马,等.狭叶柴胡侧根发育过程及影响因素研究[J].四川农业大学学报,2018,36(2):217-222
[23]杨兰.生长调节剂对油菜氮素再利用的影响及其与氮素利用效率的关系研究[D].长沙:湖南农业大学,2012:20-22.
[24]Patrick J W,Wareing P F. Auxin-promoted transport of metabolitesin stems of Pharsalus vulgaris L. effects remote from the site of hor-mone application[J]. Journal of Experimental Botany,1978,29(109):359-366.
[25]陈赢男.生长素转运蛋白Os PIN2对水稻株型、根系生长和磷素营养的调控作用[D].南京:南京农业大学,2012:101-102.
[26]Davies C R,Wareing P F. Auxin-directed transport of radiophos-phorus in stems[J]. Planta,1965,65(2):139-156.
[2]张振文,陆小静,叶剑秋,等.木薯种植对土壤肥力影响的研究进展[J].南方农业学报,2008,39(5):639-643.
[3]韦剑锋,韦冬萍,胡江如,等.木薯氮素营养特性及氮肥施用的研究进展[J].贵州农业学报,2014,42(1):54-58.
[4]郑冬超,夏新莉,尹伟伦.生长素促进拟南芥At NRT1. 1基因表达增强硝酸盐吸收[J].北京林业大学学报,2013,35(2):80-85.
[5]王新亮.果树根系硝态氮信号响应关键基因的克隆与功能分析[D].泰安:山东农业大学,2012:1-5.
[6]段娜,贾玉奎,徐军,等.植物内源激素研究进展[J].中国农学通报,2015,31(2):159-165.
[7]刘彩红,李成云,朴光一,等. IAA和NAA对不同羊草种子发芽和幼苗生长的影响[J].黑龙江畜牧兽医,2011(9):79-81.
[8]张东方,张建国,黄卓烈,等.水稻幼穗i PAs、IAA与每穗粒数和结实率的关系[J].华南农业大学学报,2005,26(2):14-16.
[9]陈明灿,刘素云,秦拓,等.生长素和缩节胺对棉花生长发育及产量的影响[J].河南科技大学学报:农学版,1998(1):7-11.
[10]宁倩. IAA对水稻苗期生理特性和N、P养分吸收利用的影响[D].西安:西安建筑科技大学,2013:21-24.
[11]许自成,张婷,卢秀萍,等.打顶后施用生长素(IAA)和钾肥对烤烟碳氮代谢的影响[J].生态学杂志,2007(4):461-465.
[12]黄巧义,黄旭,唐拴虎,等.木薯营养与施肥研究进展[J].中国农业科技导报,2010,12(2):62-68.
[13]张永发,杜前进,张冬明,等.木薯营养规律的研究[J].湖南农业科学,2009(5):77-80.
[14]史春瑞,鲍士旦.土壤农化分析[M].北京:中国农业出版社,2000:213-216.
[15]唐尚格,夏玉先,裴炎.间接酶联免疫法测定植物内源激素[J].西南农业大学学报,1991,13(2):183-186.
[16]孟广目.生长素和细胞分裂素对拟南芥主根细胞分裂和伸长的影响[D].兰州:兰州大学,2010:12-22.
[17]马新,姜继元,董鹏,等.不同植物生长调节剂处理对文冠果种子萌发和幼苗生长的影响[J].河南农业科学,2017,46(4):104-107.
[18]胡玉玲,胡冬南,王伟峰,等.不同激素对油茶关键生长过程的调节机制初步研究[J].浙江林业科技,2011,31(2):32-37.
[19]陈静,刘连涛,孙红春,等.外源NO对缺氮胁迫下棉花幼苗形态及生长的调控效应[J].中国农业科学,2014,47(23):4595-4605.
[20]Overvoorde P,Fukaki H,Beeckman T. Auxin control of root devel-opment[J]. Plant Biology,2010,2(16):121-136.
[21]李欣欣,赵静,廖红.吲哚乙酸、吲哚丁酸和萘乙酸对大豆幼根生长的影响[J].植物生理学报,2013,49(6):573-578.
[22]段莎莎,徐冬梅,余马,等.狭叶柴胡侧根发育过程及影响因素研究[J].四川农业大学学报,2018,36(2):217-222
[23]杨兰.生长调节剂对油菜氮素再利用的影响及其与氮素利用效率的关系研究[D].长沙:湖南农业大学,2012:20-22.
[24]Patrick J W,Wareing P F. Auxin-promoted transport of metabolitesin stems of Pharsalus vulgaris L. effects remote from the site of hor-mone application[J]. Journal of Experimental Botany,1978,29(109):359-366.
[25]陈赢男.生长素转运蛋白Os PIN2对水稻株型、根系生长和磷素营养的调控作用[D].南京:南京农业大学,2012:101-102.
[26]Davies C R,Wareing P F. Auxin-directed transport of radiophos-phorus in stems[J]. Planta,1965,65(2):139-156.