Preliminary yield trial in Forage sorghum varieties.
2007
Fuman, A`ziz | Mansur Yar, Mohammad | Yusefi, Sudabeh
In this study 34 forage sorghum pure line varieties which improved in sorghum breeding program in Iran, were conducted to determination of the most suitable variety, on a randomized complet block design in three replications at Karaj, in 2005. Ammonium phosphate on the base of P2O5 was applied at 115 Kg/ha and total nitrogen was used 183 Kg/ha at four times. Four traits including green fodder, dry matter, plant height and tiller number were measured in each cutting. Harvesting was conducted from 8.4 m2 area. Data were analysed in simple analysis and the means comparised with Duncan multi rang test (DMRT) method Simple analysis of variance showed significant differences between varieties at 1% of probability.The means comparised with DMRT showed, KFS3 and KFS6 were produced the highest and lowest green fodder with 179.6 and 83.5 t/ha respectively. In aspect of dry matter KFS18 and KFS6 were produced the highest and lowest dry matter with 39.84 and 20.02 t/ha respectively . 84/1384 produced the highest plant height, 271.7 cm and KFS14 the lowest plant height, 129.7 cm at second cutting. 144/1384 was produced the highest tiller number per plant with 6.333 tiller at second cutting and both of KFS14 and KFS1 were produced the lowest tiller number with 1.000 tiller at first cutting. According to all traits, totally 15 varieties were choosen for investigation of regional adaptation of new forage sorghum varieties at different cunditions.
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