Presenter Information

B Peymani-Fard

Publication Date

1985

Description

This research was conducted on ten ecotypes of red bromegrasses of Iran at Homand Range Experiment Station, near Damavand, Iran to asses: (a) the differences in phenological characteristics, (b) to evaluate differences in herbage yield, and (c) determine the crude protein percentage Parameters measured include duration of vegetative, heading, maturity stages, herbage yields, and crude protein. Variation in vegetative growth, heading and seed maturity stages among the ecotypes under study was very small

Therefore, there are no prefences in selection of a specific ecotype from the standpoint of utilization and harvesting time. There was a great fluctuation in annual herbage production of the various ecotypes. Comparison of the four-year total herbage production indicated no significant differences among the ten ecotypes. It seems that all ecotypes are well adapted to the existing environment of the Substeppic Zone. Comparison of averages of crude protein of the ten ecotypes indicated significant differences. The highest percentage crude protein belonged to ecotype 10037 (14.7, percent) and the lowest belonged to the ecotype 10084(12.54 percent). Overall evaluations indicate that the new ecotype 10336 with high values in crude protein and herbage yield is superior to the other ecotypes. Results of this study should be useful to plant introduction scientists,range and animal nutrition scientists, genetisists, and plant breaders.

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A Study of Phenology, Herbage Yield and Crude Protein Content of Native Ecotypes of Red Bromegrasses (Bromus tomentellus Boiss.) of Iran

This research was conducted on ten ecotypes of red bromegrasses of Iran at Homand Range Experiment Station, near Damavand, Iran to asses: (a) the differences in phenological characteristics, (b) to evaluate differences in herbage yield, and (c) determine the crude protein percentage Parameters measured include duration of vegetative, heading, maturity stages, herbage yields, and crude protein. Variation in vegetative growth, heading and seed maturity stages among the ecotypes under study was very small

Therefore, there are no prefences in selection of a specific ecotype from the standpoint of utilization and harvesting time. There was a great fluctuation in annual herbage production of the various ecotypes. Comparison of the four-year total herbage production indicated no significant differences among the ten ecotypes. It seems that all ecotypes are well adapted to the existing environment of the Substeppic Zone. Comparison of averages of crude protein of the ten ecotypes indicated significant differences. The highest percentage crude protein belonged to ecotype 10037 (14.7, percent) and the lowest belonged to the ecotype 10084(12.54 percent). Overall evaluations indicate that the new ecotype 10336 with high values in crude protein and herbage yield is superior to the other ecotypes. Results of this study should be useful to plant introduction scientists,range and animal nutrition scientists, genetisists, and plant breaders.