摘要
以生产上表现优异的赫尔(Hull)和卡伊娃(Kiowa)黑莓品种为试验材料,在大田栽培条件下进行不同施肥水平的处理,3次施肥结束后进行相关生理指标的测定。结果表明:随着施肥量的增加,Hull品种叶片叶绿素含量、超氧化物歧化酶(SOD)和过氧化物酶(POD)活性先升后降,在L2施肥水平达到峰值,超氧阴离子自由基(O2-·)产生速率、过氧化氢(H2O2)和丙二醛(MDA)含量随着施肥量的增加均有所下降,可溶性蛋白含量在各施肥水平下变化不明显;Kiowa品种叶绿素含量在L2施肥水平有所增加,在其他施肥水平变化不明显,O2-·、H2O2和可溶性蛋白含量变化不明显,MDA含量和SOD活性有所下降,POD活性随着施肥量增加先升后降,在L2施肥水平达到峰值。结论认为,Hull较Kiowa肥效显著,但2个品种均在L2施肥水平表现出较旺盛的生理活动,2个品种的最佳施肥水平是L2水平,即每株每次追肥的用量为60 g尿素和60 g磷酸二氢钾。
Taking blackberry cultivars ‘Hull＇and ‘Kiowa＇as experimental material,proceeding different fertilizer treatments test in field cultivation,measuring the related physiological indicators after 3 fertilizations. The results showed that concentrations of photosynthetic pigments and activities of superoxide dismutase（ SOD） and peroxidase（ POD） in‘Hull＇increased first and then decreased,and reached the peak value in L2 treatment,The contents of hydrogen peroxide（ H2O2） and malondialdehyde（ MDA） and the generation rate of O2-· decreased progressively,while no significant change was observed in soluble proteins. There were also no significant changes in O2-·,H2O2 and soluble proteins in the leaves of‘Kiowa＇,the content of Chlorophyll pigments in ‘Kiowa＇changed slightly as the concentration increased,except for a few increase at the concentration of L2 treatment. MDA content and SOD activity slightly declined under the different fertilization treatments,POD activity increased as the fertilization content increasing,reaching the peak value in L2 treatment. The results indicated that the fertilizer efficiency of‘Hull＇was more significant than that of‘Kiowa＇,but both ‘Hull＇and‘Kiowa＇showed a strong physiological activity in L2 treatment,and the optimum fertilizer applying level was in L2 treatment,the amount of fertilizer were 60 g urea and 60 g potassium dihydrogen phosphate per plant.
出处
《江西农业学报》
CAS
2016年第3期7-10,共4页
Acta Agriculturae Jiangxi
基金
江苏省科技支撑计划项目(BE2013440
BE2013309)
江苏省农业三新工程项目(SXGC[2013]347)
江苏省农业科技自主创新资金项目(CX(14)2021)
关键词
黑莓
施肥
抗氧化系统
生长发育
Blackberry（Rubus spp
）
Fertilization
Antioxidant system
Growth and development
