Tanaman kolesom (Talinum triangulare) Jacq Willd merupakan tanaman sayur yang umbinya digunakan sebagai bahan baku obat, namun informasi mengenai pola pertumbuhan tanaman ini masih sedikit. Pola pertumbuhan erat hubungannya dengan model pertumbuhan yang dapat digunakan untuk mengetahui hubungan antara produk pertumbuhan terhadap waktu, sehingga akan memberikan informasi mengenai peralihan dari fase ke fase. Pola pertumbuhan perlu diketahui agar bisa dijadikan dasar dalam penerapan strategi budidaya tanaman yang tepat dan efektif. Penelitian ini dilaksanakan di Kebun Percobaan Agroteknologi Universitas Trunojoyo Madura pada bulan Januari hingga Maret 2018, dilaksanakan selama pertumbuhan vegetatif (60 hari) dengan interval pengamatan 3 hari sekali. Variabel yang diamati adalah jumlah daun, luas daun, bobot kering daun, tinggi tanaman, jumlah cabang, bobot kering batang, jumlah akar, panjang akar, bobot kering akar, jumlah umbi, panjang umbi, diameter umbi, bobot kering umbi dan bobot kering bunga. Data diperoleh dianalisis menggunakan analisis regresi sederhana. Hasil penelitian menunjukkan bahwa jumlah daun, luas daun, bobot kering daun tinggi tanaman, bobot kering batang, jumlah akar, panjang akar , bobot kering akar, panjang umbi, diameter umbi, bobot kering umbi bersifat linear positif sejalan dengan umur tanaman sedangkan jumlah cabang dan jumlah umbi bersifat logarithmic, namun pada variabel total bobot kering biomassa bersifat exponensial dengan persamaan y = 0.0031e0.1638x (R² = 0,9744). Kata Kunci : (Talinum triangulare) Jacq Willd, pola pertumbuhan.

The colesom plant (Talinum triangulare) Jacq Willd is a vegetable crop which is used as a raw material for medicine, but information on the pattern of plant growth is still small. The growth pattern is closely related to the growth model that can be used to determine the relationship between product growth over time, thus providing information on the transition from phase to phase. The growth pattern needs to be known in order to be the basis for the proper and effective cultivation strategy. This research was conducted at Agrotechnology Experimental Garden of Trunojoyo Madura University from January to March 2018, carried out during vegetative growth (60 days) with 3 days observation interval. The variables observed were leaf number, leaf area, leaf dry weight, plant height, branch number, dry weight of stem, root number, root length, root dry weight, tuber number, tuber length, tuber diameter, tuber dry weight and dry weight of flower. The data obtained were analyzed using simple regression analysis. The results showed that the number of leaves, leaf area, dry weight of plant leaves, dry weight of stem, root number, root length, root dry weight, tuber length, tuber diameter, tuber dry weight were positive linearly in line with plant age, the number of tubers is logarithmic, but the total variable of dry weight biomass is exponential with the equation y = 0.0031e0.1638x (R² = 0,9744). Keywords: (Talinum triangulare) Jacq Willd, growth pattern.

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