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¹ Batı Akdeniz Tarımsal Araştırma Enstitüsü, Antalya Viewed : 1578 - Downloaded : 1180 Cotton (Gossypium hirsutum L) has balance between generative and vegetative growth, which is requested. This balance should be ensured in order to high yield and quality production. The factors having effect on yield can be controlled by means of plant monitoring techniques have by using plant growth stages in cotton production. In this study, using plant monitoring; such as plant height, height to node ratio (HNR), number of nodes above white flower (NAWF) and day-degree unit (DD) was evaluated in Çukurova-1518 (Ç-1518) cotton variety. The results were found that HNR of Ç-1518 cotton variety is 2.6 in first squaring; 3.4 in first flowering; 5.1 in cut-out; NAWF of Ç-1518 cotton is 8.8 in first flowering; 5.8 in cut-out; 4.3 in open boll; unit total day-degree heat unit (DD) requested (0C) is 295.7 in first squaring; 565.9 in first flowering; 1286.9 in cut-out and 1409.6 DD from planting to opening of boll; Also, duration %50 opening of boll is very important for yield potential. Keywords : Cotton (Gossypium hirsutum L), Plant Monitoring Techniques, NAWF, HNR, Day-degree unit (DD)