گزارش نهایی بررسی و تعیین مناسبترین فاصله خطوط کاشت در رقم سورگوم علوفه ای

‭Role of plant population on increasing yield potential of sorghum (sorghum- bicolor L.) and its effect on different growth factors has been reported by several researchers. with emphasis on the results obtained from ‬‮‭1986‬ ‭to ‬‮‭1988‬ ‭and ‬‮‭1991 -1989‬ ‭sorghum bicolorr L. var Sugar graze WAS selected as a promissing Cul tivar for this experiment. Aim of this study was to find the relationship between row spacing and grouth factors. Three years ot study from ‬‮‭1992 -1990‬ ‭showed a signifi cant difference at ‬5‭% level of green forage prOdact, in which rOw spatcing of ‬‮‭30‬ ‭cm and ‬‮‭45‬ ‭cm with ‬‮‭4.228‬ ‭T/ha and ‬‮‭4.212‬ ‭T ha respectively were supe rior to other treatments. Average forage yield from year ‬‮‭1992 -1990‬ ‭showed a significant diff erences at ‬1‭% Level. The year ‬‮‭1992‬ ‭with an average yield of ‬‮‭5.229‬ ‭T ha was superior to others. from the point of dry matter yield and forage crude protein, the trend was simillar, so there was no significant differen ces among treatments As it was mentioned the dry matter and crude protein yield was more in third year with ‬‮‭36.45‬ ‭T/ha dry matter production and ‬‮‭09.3‬ ‭T/ha protein comparing ‬‮‭1991 -1990‬ ‭at ‬1‭% Level. Prussic acid accumulations as a negative factor,wich acts as a barrier and cattle feeding was also studied. theresult showed no signif icant difference dmong all treatments. The effect of year differences were simillar to crude protein and dry matter yield, so that the year ‬‮‭1992‬ ‭wich least prussic acid production was better than the other ‬2 ‭years. we conclude that the intra row spacing did influence the forage yield, but did not effect other factors under study.‬

Keywords:

علوفه , علوفه , پژوهش