Effect of Different Nitrogen Forms and Concentrations on Yield and Quality of Fritillaria thunbergii
10.13422/j.cnki.syfjx.20201713
- VernacularTitle:不同氮素形态和浓度水平对浙贝母产量和品质的影响
- Author:
Jing LUO
1
;
Mao-jun MU
2
;
Qian WANG
2
;
Ming WEN
2
;
Fu-rong ZHU
2
;
Xiao-hong WU
2
;
Nong ZHOU
2
Author Information
1. School of Biological and Chemical Engineering，Chongqing University of Education，Chongqing 400067，China
2. Chongqing Engineering Laboratory for Green Planting and Deep Processing of Genuine Medicinal Materials in Three Gorges Reservoir Region，College of Biological and Food Engineering，Chongqing Three Gorges University，Chongqing 404120，China
- Publication Type:Research Article
- Keywords:
Fritillaria thunbergii;
nitrogen form;
yield;
quality
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2020;26(16):168-174
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the effect of different nitrogen forms and concentrations on yield and quality in Fritillaria thunbergii，and provide basis for improving scientific utilization of nitrogenous fertilizer and its introduction to Chongqing area. Method:The pot culture experiment was conducted to investigate the changes in growth，physiological and biochemical characteristics，soil factors，alkaloid content and yield of Fritillaria thunbergii under the ratio of nitrate nitrogen（NO3--N） to ammonium nitrogen（NH4+-N）of 15∶0（N1），12∶3（N2），7.5∶7.5（N3），3∶12（N4） and 0∶15（N5）. Result:As compared with no-nitrogen（CK） treatment group，the growth and quality of F. thunbergii were significantly improved by different nitrogen nutrition treatments，with differences among them.With the increase of ammonium nitrogen concentration：①plant height and the activity of superoxide dismutase（SOD） reached the maximum when the ratio of NO3--N to NH4+-N was 3∶12，increased by 9.27% and 206.62% respectively compared with the CK group，② the length and width of leaf，stem diameter，chlorophyll a，chlorophyll b，total chlorophyll content，the content of available P and organic matter，total alkaloid content and yield reach the maximum when the ratio of NO3--N to NH4+-N was 0∶15，increased by 14.02%，16.44%，13.68%，40.75%，45.31%，41.72%，77.70%，14.70%，24.61%/47.39% respectively compared with the CK group，with the increase of nitrate nitrogen concentration，③the leaf index，soluble protein content，peimisine content/yield，yield of peiminine and dry weight of bulbs reached the maximum when the ratio of NO3--N to NH4+-N was 7.5∶7.5，increased by 2.54%，5.92%，21.76%/54.55%，60.61% and 26.93%，respectively compared with the CK group，④the content of carotenoids，pigment and peiminine，the activity of peroxidase（POD） and catalase（CAT），the content/yield of peimine，both peimine and peiminine，both peimine，peiminine and peimisine，dry weight of bulbs reached the maximum when the ratio of NO3--N to NH4+-N was 12∶3，increased by 45.39%，45.31%，36.01%，271.38%，67.45%，39.82%/64.87%，38.90%/63.80%，37.03%/61.57%，20.29% respectively compared with the CK group. Conclusion:All the results indicated that a higher proportion of NH4+-N is beneficial to the growth of F. thunbergii，while NO3--N is beneficial to the accumulation of alkaloids and the growth of bulbs.Therefore，the combined application of ammonium and nitrate（NO3--N to NH4+-N ratio of 12∶3） is more effective than pure nitrate or pure ammonium applications to improve the yield and quality of F. thunbergii．
