新疆农业科学2017，Vol.54Issue(5)：843-852,10.DOI:10.6048/j.issn.1001-4330.2017.05.007
不同产量库尔勒香梨叶片中微量矿质元素含量的年变化研究
Trace Mineral Concentrations in the Leaves of Korla Fragrant Pear at Different Times during the Growing Season
摘要
Abstract
[Objective] The purpose of this experiment is to measure trace mineral concentrations in the leaves of high, medium, and low yielding'Korla fragrant pear'trees at different times during the growing season.The results can be used as a reference for fertilizing pear orchards.[Method]Trace mineral concentrations were measured at different times during the growing season.Leaves were collected from Korla fragrant pear trees every two weeks from April 28 until September 23.The'Korla fragrant pear'trees were 20 to 25 years old.[Result]Leaf Fe, Cu, Zn, and B concentrations decreased during the growing season, whereas Mn and Na concentrations increased.Averaged across the growing season, leaf Fe, B, and Na concentrations were greater in high-yielding orchards than in medium-and low-yielding orchards.Leaf Cu concentrations were greatest in medium-yielding orchards.Leaf Zn and Mn concentrations were greater in the low-yielding orchards than in the medium-and high-yielding orchards.Correlation analysis showed that leaf Zn concentrations were significantly positively correlated with leaf Fe and Cu concentrations.Leaf Mn concentrations were significantly negatively correlated with leaf Cu, B, and Na concentrations.Correlation analysis also indicated that high yield was significantly positively correlated with leaf Fe concentrations on July 13, September 23, and July 28.High yield was significantly negatively correlated with leaf Cu concentrations on September 10 and with leaf Na concentrations on August 10.[Conclusion]The trees should be supplied with Cu during the early growing season.Iron should be supplied during the mid-growing season.Zinc should be supplied during the mid and late growing season.Boron should be supplied during the entire production period.Supplementation with Mn and Na is not recommended.In conclusion, the yield and quality of'Korla fragrant pear'can be increased by understanding the correlation between yield and leaf trace mineral concentrations at different times during the annual production period.关键词
库尔勒香梨/叶片/矿质元素Key words
Korla fragrant pear/leaf/mineral element分类
农业科技引用本文复制引用
朱海峰,马建江,刘艳,赵娟娟,王刚,鲁晓燕..不同产量库尔勒香梨叶片中微量矿质元素含量的年变化研究[J].新疆农业科学,2017,54(5):843-852,10.基金项目
新疆生产建设兵团科技支疆计划项目"库尔勒香梨密植高效栽培新技术研究与示范"(2014AB003,2014-2016) （2014AB003,2014-2016）
新疆生产建设兵团科技计划项目"库尔勒香梨种质资源利用及新品种选育(区域创新团队)"(2013CC006) （区域创新团队）
Science and technology supporting Xinjiang programs of XPCC "New technology research and demonstration of Korla fragrant pear close planting high-efficiency cultivation " (2014AB003,2014-2016)and science and technology planning projects of XPCC "Korla fragrant pear Germplasm Resources Utilization and New Variety Breeding (Regional Innovation Team)"(2013CC06) （2014AB003,2014-2016）
