Abstract
Sorghum is a grain plant that is a source of food, biofuel and feed, which can be produced using the techniques of ratoon cultivation. The objective of this study is to assess the nutrition content, the performance of the four sorghum genotypes and the vegetative characteristics of the sorghum ratoon. The research was carried out from December 2020 to July 2021 at the Ciawi Research Garden, the Livestock Research Institute. The study employed four treatments (genotype) and three replications of random block design. The range of protein content, crude fat crude fiber and ash in the four genotypes of sorghum was 7.91-9.30, 1.91-2.69, 33.41-37.57 and 8.25-9.11%, respectively. Genotype significantly affected P<0.05 on plant height, stem height, leaf width, internode length, flag leaf width and fresh weight, but not significantly different P>0.05 on leaf length, stem diameter and flag leaf length on the main plant. Genotype had no significant effect (P>0.05) on plant height, number of tillers, leaf length, leaf width and fresh weight of ratoons. It was concluded that the ability of ratoon in sorghum was not affected by the genotype of sorghum.
Highlights
Sorghum is a cereal grain with multiple uses, including food, animal feed, and fuel
Super sorghum 1 is the result of improving the White Hamu Watar population from the Cereal Research Institute's germplasm collection, with characteristics of aphis resistance, anthracnose resistance, leaf rust and leaf blight, suitable for dry land and dry climates and environmental adaptation [4]
Vegetative characters for the main plant consisted of plant height, stem height, leaf length, leaf width, internode length, stem diameter, flag leaf length, flag leaf width, fresh weight, while for ratoon included plant height, number of tillers, leaf length, width leaves and fresh weight
Summary
Sorghum is a cereal grain with multiple uses, including food, animal feed, and fuel. As a result of its high nutritional value and ability to grow on dry land, this plant has the potential to be developed as a ruminant feed source [1]. One potential crop to develop with the ratoon system is sorghum. Ratoons are raised by harvesting the first season's crop, allowing it to regrow, and cultivating it like sorghum grown from seed. Stem diameter, wet and dry stover weight, harvest age, and harvest index were found to be significantly correlated with the ability to ratoon. Correlated with ratoon plant performance were the main plant's height, total leaf chlorophyll, wet and dry stover weight, panicle weight, seed weight per panicle, 1,000 seed weight, harvest index, and transpiration rate. We conducted a study to determine the productivity of ratoons from four types of sorghum consisting of one national variety and three breeding varieties to be developed as forage for livestock based on the information above
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