Cereals 09 Germina- tion 10 – 19 Leaf develop- ment 20 – 29 Tillering 30 – 39 Stem   Elongation 40 - 49 Booting 50 – 59 Inflorescence emergence 80 - 89 Ripe- ning Beet 00 –  09 Germination 10 – 19 Leaf development 30 – 39 Rosette growth 49 Harvestable size Potato 00 – 09 Sprout-ing 11 – 19 Leaf develop- ment 51 – 59 Inflore- scence emergence 61 – 69 Flowering 71 – 79 Development of fruit 81 – 89 Ripening of fruit and seed 91 – 97 Senescence Tuber formation   40                      43                   45                        47        48           49 Rape 10 Germina- tion 11 – 19 Leaf develop- ment 30 – 39 Stem   elongation 50 – 59 Inflorescence   Emergence 60 – 69 Flowering 70 – 79 Develop- ment   of fruit 80 - 89 Ripening