Text this: Site of nitrogen accumulation in tulip (Tulipa gesneriana L.) roots during winter

 ______    _    _     ______     ___     ______   
|      \\ | || | ||  /_   _//   / _ \\  |      \\ 
|  --  // | || | ||  `-| |,-   / //\ \\ |  --  // 
|  --  \\ | \\_/ ||    | ||   |  ___  |||  --  \\ 
|______//  \____//     |_||   |_||  |_|||______// 
`------`    `---`      `-`'   `-`   `-` `------`