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

  ______    ______   _    _      ___       _____  
 /_____//  /_   _// | \  / ||   / _ \\    / ___// 
 `____ `    -| ||-  |  \/  ||  | / \ ||   \___ \\ 
 /___//     _| ||_  | .  . ||  | \_/ ||   /    // 
 `__ `     /_____// |_|\/|_||   \___//   /____//  
 /_//      `-----`  `-`  `-`    `---`   `-----`   
 `-`