Document Type: Research paper
Natural Resources Research Department, Associate. prf. of Isfahan Agricultural and Natural Resources Research Center, Agricultural Research Education and Extension Organization (AREEO), Isfahan, Iran.
Assosiated prf. of Forest and Rangeland Institute of Iran
Assosiate prof. of Forest and Rangeland Istitute of Iran
Isfahan Agricultural and Natural Resources Research Center, Agricultural Research Education and Extension Organization (AREEO), Isfahan, Iran.
Sainfoin (Onobrychis vicifolia Scop.) is one of the most important forage legumes cultivated as high quality forage and 53 species have been identified in this genus in Iran. A field experiment was conducted using randomized complete block design to compare yield and forage quality of 20 populations of sainfoin in Isfahan Agricultural and Natural Resources Center, Iran during 2013 – 2014. Populations were evaluated at three cutting (29 April, 20 July and 26 October, 2014). Dry matter yield and forage quality indexes such as crude protein (CP), water-soluble carbohydrates (WSC), neutral detergent fiber (NDF), acid detergent fiber (ADF), dry matter digestibility (DMD), and ash content were determined. Results showed that populations were different in the majority of traits. Means of interaction effects indicated that maximum and minimum dry matter yield were 5612.7 Kg ha-1at the third cutting and 118.5 kg ha-1at the first cutting in 8199 and 9263, respectively. According to results of quality analysis table in majority of populations, maximum of DMD, CP and WSC were at the third cutting and maximum of ADF and NDF were at the first cutting. In terms of forage yield some populations, such as 8199, 3800, Oshnavieh, 9147, 8799 and Isfahan camposit were superior to other populations. High digestibility populations (2759, 19402, PLC, 12542, 3001 and Oshnavieh) and high protein populations (8199, 15353, 2759, 3062, 15364 and 19402) had the best forage quality among populations. Regarding quantitative and qualitative characteristics of forage, these populations could be considered as desired parents for developing synthetic varieties.