Table 1 Division of peanut growth periods.

Pre reproductive period

Emergence stage

From sowing to 50% of the seedlings are unearthed and the first true leaf (compound leaf) is expanded

Seedling stage

From 50% seed emergence to 50% plant first flower opening

Mid reproductive period

Flowering and needling stage

From 50% of the plants began to blossom to 50% of the plants appeared chicken head like young fruit

Last reproductive period

Pod setting stage

From 50% of plants with chicken head like young fruit to 50% of plants with full fruit

Full fruit stage

From 50% plants with full fruit to full and mature pods