Description
This work presents some properties on produced inbred lines of the 5 best populations of 4 species of Agrostis for breeding purposes. The cultivars of forage grasses should meet a given aim for selection, which is the increasing dry matter and quality. The populations used in this research were the best ones for morphological and productive properties from a previous study. By the process of selfing there have been produced S1 offsprings which appeared to be quite superior in relation to open pollinated offspring from the mother plants. The obtained results were processed by multiple range regression analyses. According to the regression coefficient the inheritance of phenotype value of parental plants and the obtained offsprings after the selfing, and the properties like height of plant, tillering, number of vegetative and generative shoots, and dry matter yield for each plant has been determined. The selfed seed setting was quite satisfactory and it did not exppressed a very significant depression. Since the results relating to the inbred plants do not show inbreeding depression, process of selection and creating new cultivars should be continued for these species.
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Inbreeding of Some Populations in the Genus Agrostis L.
This work presents some properties on produced inbred lines of the 5 best populations of 4 species of Agrostis for breeding purposes. The cultivars of forage grasses should meet a given aim for selection, which is the increasing dry matter and quality. The populations used in this research were the best ones for morphological and productive properties from a previous study. By the process of selfing there have been produced S1 offsprings which appeared to be quite superior in relation to open pollinated offspring from the mother plants. The obtained results were processed by multiple range regression analyses. According to the regression coefficient the inheritance of phenotype value of parental plants and the obtained offsprings after the selfing, and the properties like height of plant, tillering, number of vegetative and generative shoots, and dry matter yield for each plant has been determined. The selfed seed setting was quite satisfactory and it did not exppressed a very significant depression. Since the results relating to the inbred plants do not show inbreeding depression, process of selection and creating new cultivars should be continued for these species.
