английский => русский Прочее Ботаника

The pollen production index is determined by tripping a minimum of 200 flowers on a red label and rating from 1, 2, 3 and 4 and weighted 0, 0.1, 0.6 and 1.0 respectively, with 1 equal to male sterile with no pollen, 2 is partial male sterile with trace amounts of pollen, 3 is partial fertile with a moderate amount of pollen and 4 being equal to fertile with full pollen.