First true leaves appear (serrated, rough texture). Plant shifts to autotrophic growth.
Stem elongates, multiple true leaves form. Root system expands. mustard seed growing
Hypocotyl elongates, pulling cotyledons (seed leaves) above soil. Cotyledons turn green → photosynthesis begins. First true leaves appear (serrated, rough texture)
Yellow four-petal flowers appear → self-pollination → silique pods develop. First true leaves appear (serrated
Primary root (radicle) breaks through testa → anchors seed.