gũkũmba

v.

1. to form heads. To form heads. The process by which leafy vegetables, especially cabbage, develop compact heads through the folding and compacting of leaves around a central core; a critical stage in cabbage development.

Example: Gũkũmba kwa mboga nĩkũnyihaga ũrugarĩ ũngĩthiĩ makĩria ma 25°C (Head formation reduced at temperatures higher than 25 degrees Celsius.); Potassium ĩngĩnyĩha harĩ mũmera nĩigiragĩrĩria mboga gũkũmba wega. ũingi wayo nĩtumaga kabici yatũke (Potassium (K) deficiency can result in marginal necrosis and lower head quality, but its excess can cause the heads to open (NB: Fertilizer application rates is guided by soil and leaf analysis); Potassium ĩngĩnyĩha harĩ mũmera nĩgiragĩrĩria mboga gũkũmba wega na ĩngĩingĩha no yatũke (Potassium (K) deficiency can result in marginal necrosis and lower head quality, but its excess can cause the heads to open.)