植物多糖类复合制剂对冬小麦光合特性及籽粒灌浆进程的影响

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	植物多糖类复合制剂对冬小麦光合特性及籽粒灌浆进程的影响
	白文波 1; 宋吉青 1; 吕国华 1; 国金义 2; 刘星海 1; 李际会 1
刊名	中国生态农业学报
	2012
卷号	20 期号:4 页码:433-439
关键词	植物多糖类复合制剂冬小麦气体交换参数叶绿素SPAD值产量水分利用效率灌浆速率
ISSN号	1671-3990
其他题名	Effects of plant polysaccharide compound agents on winter wheat photosynthetic characteristics and grain filling processes
英文摘要	为探明有效成分不同的植物多糖类复合制剂的增产作用和机理,在冬小麦始花期叶面喷施以植物多糖、5-氨基乙酰丙酸和缩节胺为有效成分复配的3种复合制剂P1、P2和P3(由中国农业科学院农业环境与可持续发展研究所自主研发),以清水为对照,比较研究不同制剂对冬小麦叶绿素含量、硝酸还原酶活性、光合蒸腾特性、籽粒灌浆进程及产量等的影响。结果表明,喷施3种制剂20 d内,小麦旗叶和倒二叶的叶绿素SPAD值均较对照有不同程度增加,且随生育进程下降的趋势较对照有所延缓。旗叶净光合速率较对照增加了8.7%~17.4%,且P1和P2对SPAD值和光合速率增加的效应大于P3。此外,P1和P2还促使小麦硝酸还原酶活性增强,单叶水分利用效率增加10%以上。3种植物多糖类复合制剂均促使小麦达到最大灌浆速率的时间提前1.3~4.2 d,且P1和P2使籽粒平均灌浆速率提高6%以上。P3虽未引起籽粒灌浆速率的明显变化,但灌浆时间延长1.0 d。喷施3种复合制剂未引起小麦穗数的明显变化,但穗粒数和千粒重增加,并促使小麦增产8%以上。分析认为,3种植物多糖类复合制剂可促进小麦叶绿素合成、延缓叶片衰老、改善旗叶光合潜能和籽粒灌浆进程,进而实现增产。; Chlorophyll content,nitrate reductase activity,photosynthetic characteristics and grain-filling processes of winter wheat were investigated in a field experiment for the effects and mechanisms of three plant polysaccharide compound agents [P1(plant polysaccharide extracted from natural plant and marine biological resources),P2(plant polysaccharide/5-aminolevulinic acid) and P3(plant polysaccharide/5-aminolevulinic acid/dimethylpiperidinium chloride)].The effects of agents on the growth and grain yield of winter wheat after foliage spraying at early flowering stage were determined.The results indicated that the agents increased SPAD values in flag and top second leaves.It delayed the decrease of chlorophyll content as plants development.Net photosynthetic rates of flag leaves increased by 8.7%~17.4%.Increases in SPAD and photosynthetic rate under P1 and P2 treatments were larger than those under P3 treatment.Furthermore,nitrate reductase activities increased under P1 and P2 treatments and water use efficiency(WUE) of flag leaves increased in excess of 10%.Under the compound agent treatments,the period until maximum grain-filling rate shortened by 1.3~4.2 d.Mean grain-filling rates increased by over 6% under P1 and P2 treatments.While no obvious change was noted in mean grain-filling rate under P3 treatment,grain-filling duration lengthened by 1.0 d.Whereas there was no significant change in spike number,grain number per spike and kilo-grain weight improved.Grain yield of winter wheat treated with compound agents increased by over 8% compared to the control treatment.Chlorophyll content increase,leaf senescence delay,and enhanced photosynthetic capacity and grain-filling processes improved winter wheat yield under polysaccharide compound agent treatments.
学科主题	植物学 ; 农作物
语种	中文
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/17092]
专题	农业环境与可持续发展研究所_农业减灾研究室
作者单位	1.中国农业科学院农业环境与可持续发展研究所, 农业部农业环境重点实验室 2.农业部旱作节水农业重点实验室, 北京, 100081 3.山东省东营市垦利县永安镇农林站, 东营, 257503
推荐引用方式 GB/T 7714	白文波,宋吉青,吕国华,等. 植物多糖类复合制剂对冬小麦光合特性及籽粒灌浆进程的影响[J]. 中国生态农业学报,2012,20(4):433-439.
APA	白文波,宋吉青,吕国华,国金义,刘星海,&李际会.(2012).植物多糖类复合制剂对冬小麦光合特性及籽粒灌浆进程的影响.中国生态农业学报,20(4),433-439.
MLA	白文波,et al."植物多糖类复合制剂对冬小麦光合特性及籽粒灌浆进程的影响".中国生态农业学报 20.4(2012):433-439.