山西农业大学学报（自然科学版）2018，Vol.38Issue(2)：42-46,5.DOI:10.13842/j.cnki.issn1671-8151.201708006
叶面喷施腐植酸钾对张杂谷10号光合特性及产量的影响
Effect of foliar application of HA-K on photosynthetic characteristics and yield of ZhangzaGu 10
摘要
Abstract
[Objective]The objective of the study was to analyze the effect of HA-K at different concentrations on the photo-synthetic characteristics and yield of Foxtail millet.[Methods]Field trials were conducted by foliar spraying HA-K at differ-ent concentrations(0,0.05%,0.1%,0.2%,0.4%,0.8%)at the booting stage of Zhangzagu 10.The difference in plant height,stem diameter,SPAD value,photosynthetic parameters,and grain yield were measured and analyzed.[Results]Re-sults showed that plant height and stem diameter were boosted with the increase of the concentration,then decrease,and significant increase(P<0.05)was observed in 0.1%,and 0.2% treatments,by 3.44%,2.78% and 9.93%,17.90%,re-spectively.SPAD activity and net photosynthetic rate(Pn)of the leaves were increased in all treatments with the greatest values detected in 0.2% treatment which induced SPAD activity by 11.8%,and Pn by 26.38%.The internal CO2concen-tration(Ci)of leave were decreased,while the transpiration rate(Tr)and stomatal conductance(Gs)were increased with rising concentration up to 0.2%.The ear length,ear thickness,ear weight,ear grain weight and 1000-grain weight were in-creased in all treatments,and ear yardage was increased with the concentration increase,and then decreased,and the grea-test increase of all grain yield components were detected in 0.2% concentration treatment.[Conclusion]Under the condi-tions of present experiment,the application of HA-K at 0.2 % produced the best results at the booting stage with the big-gest increase in SPAD value,net photosynthetic rate and yield components of millets.关键词
谷子/腐植酸钾/株高/茎粗/SPAD值/光合参数/产量Key words
Millet/HA-K/Plant height/Stem diameter/SPAD value/Photosynthetic parameters/Yield分类
农业科技引用本文复制引用
肖晓璐,原向阳,董淑琦,宋喜娥,宁娜,闫政东,郭平毅..叶面喷施腐植酸钾对张杂谷10号光合特性及产量的影响[J].山西农业大学学报（自然科学版）,2018,38(2):42-46,5.基金项目
国家自然科学基金(31301269) （31301269）
山西省农业科技攻关项目(20150311016-2) （20150311016-2）
山西省重点研发项目(2015-TN-09) （2015-TN-09）
山西省重点研发计划(一般项目)(201603D221003-2) （一般项目）
山西农业大学青年拔尖创新人才支持计划(TYIT201406) （TYIT201406）
青年科技研究基金(201601D202075) （201601D202075）
