Ref1

https://books.google.com.my/books?id=9JhLKNINqaEC&pg=PA195&lpg=PA195&dq=medicago+arabica+yield&source=bl&ots=oYjyvynnTm&sig=ACfU3U2Adyjg7PAsyrbBjFlrH9B87QSD-g&hl=en&sa=X&ved=2ahUKEwjyndyL-5ThAhVKro8KHcTBC8wQ6AEwA3oECAgQAQ#v=onepage&q=medicago%20arabica%20yield&f=false