The regional study of yield and stability of new forage sorghum varieties
2010
Phoman, Aziz | Basafa, M | Mokhtarzadeh, A | Shiri, A | Mokhtarpor, M.R | Tabatabayii, H | Rahnama, A | Gaffari-por, A | Ghasemi, S | Nadeali, F | Mansoryar, M | Yosefi, S | Izadfar, M | Beshartnia, G
For studing the yield and adaptability a set of new forage sorghum lines, an experiment was carried out at Nyshabour Agricultural and Natural Resource Research Station during 2007-2009. 15 new forage sorghum lines were evaluated in a RCBD with four replications. There were two harvest per season. The results of compound analysis of variance indicated that there is significant effects for years, genotypes, Harvest and their interactions. The maximum data for stem diameter, fresh and dry matter yield were recorded in first harvest and for number of tiller per plant in second harvest. Maximum forage and dry matter yield was produced by KFS1, KFS3 and KFS2 lines with 171.4, 158.8 and 145.7 tone hectar for forage and 42.4, 37.4 and 35.96 tone hectar of dry matter respectively. Paired wise correlation of different traits showed that plant height has positive effect on forage yield(0.47), but leaf-to-stem ratio has decreased forage yield (-0.41). Leaf-to-stem ratio was negatively correlated with plant height (-0.78). Also dry matter yield was highly correlated with fresh yield (0.79) that means selecting for high yielding lines would results in more dry matter yield. The results of descriptive statistics of traits exhibited that the most phenotypic coefficient of variations were for dry matter yield (20.75%, forage yield (17.04%) and leaf-to-stem ratio in dry matter (17.02%) respectively. For other traits the coefficients were higher than 10% except stem diameter (8.8%).
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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