Text this: Uneven distribution of zinc in the dorsal and ventral sections of rice grain

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