التفاصيل البيبلوغرافية
| العنوان: |
Effect of nitrogen nutrient on dry matter accumulation, apparent quality and photosynthesis of Isatis indigotica Fort. from different areas. (English) |
| المؤلفون: |
LÜ, Tingling, SHI, Shenglu, TANG, Xiaoqing, LIN, Zhichao, ZHAO, Jiangtao, ZHOU, Haifeng, LI, Zhenying, WANG, kangcai |
| المصدر: |
Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao; 2015, Vol. 38 Issue 3, p395-401, 7p |
| مستخلص: |
[Objectives] To provide a theoretical basis for the establishment of the best suitable nitrogen application forms and proportion in the cultivation of Isatis indigotica Fort., the effect on the dry matter, apparent quality and photosynthesis of I. indigotica was explored. [ Methods] Field experiment was going to analyze the growth, chlorophyll content and photosynthetie parameters of I indigotica from five different areas by using seven nitrogen treatment with three repeats, which were nitrogen control, N0-3-N,NH+4-N, NH+4-N/NO-3-N = 75/25,NH+4-N/N0-3-N = 50/50, NH+4-N/NO-3-N = 25/75 and CO ( NH2 )2, respectively. [Results] I. indigotica from Shaanxi Shangluo in ammonium nitrate mixed fertilizer( NH+4-N/NO-3-N = 75/25 and NH+4-N/NO-3-N = 50/50) ,grew well; While the group from Gansu Zhangye in the ammonium nitrogen and amide nitrogen processing conditions, underground biomass and total biomass had a larger accumulation. The treatment of amide nitrogen could improve the dry weight of roots of Anhui Bozhou, Gansu Zhangye, Anhui Fuyang and Shanxi Yuncheng. The main root diameter and the number of lateral root in the group of Gansu Zhangye and Shaanxi Shangluo all reached maximum in NH+4-N/NO-3-N = 25/75 and NH+4-N/NO-3-N = 50/50, respectively. Nitrogen treatment could effectively improve the chlorophyll content of I, indigotica, especially the Anhui Fuyang with nitrate nitrogen. Meanwhile, nitrogen treatment was also beneficial to improving its photosynthetie rate, stomatal conductance, transpiration rate and intercellular CO2 concentration, which significantly affected on the I. indigotica from Shaanxi Shangluo. [Conclusions] These results indicated that there are many differences between the response of nitrogen treatment in different areas. Therefore we could improve the yield of the I. indigotica by applying suitable nitrogen forms and proportions according to the different responses to nitrogen forms and proportion in different areas. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
