Effects of nitrogen amount and nitrogen form on 1-deoxynojimycin content in mulberry leaf | 施氮量及氮素形态对桑叶中1-脱氧野尻霉素含量的影响
2010
Yin Hao, Sichuan Research Institute of Sericultural Sciences, Nanchong (China) | Tong Wanhong, Sichuan Research Institute of Sericultural Sciences, Nanchong (China) | Ye Jingjing, Shandong Agricultural University, Tai’an (China), College of Forestry
[Objective] Effects of nitrogen amount and nitrogen form on 1-deoxynojimycin (DNJ) content in mulberry leaf was explored in order to provide a reference for improving DNJ content in mulberry leaf and its medicinal value. [Method] Effects of nitrogen amount (NO3--N and NH4+-N) and nitrogen form (NO3--N/NH4+-N) on DNJ content in mulberry leaf were studied by changing nitrogen amount and nitrogen form in water culture solution. [Result] DNJ contents in mulberry leaf both increased at first and then decreased with the increase of nitrogen amount, furthermore compared with NH4+-N, NO3--N was more beneficial to the accumulation of DNJ; DNJ content in mulberry leaf obviously increased at first and then decreased with the decrease of NO3--N/NH4+-N, among them when its rate was 25/75, DNJ content reached the highest. [Conclusion] Proper nitrogen amount and nitrogen form could effectively improve the DNJ content in mulberry leaf.
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