Characterization of Improved Sweet Sorghum Cultivars (SpringerBriefs in Agriculture)


Rao, P. Srinivasa

Biodiesel is obtained from plants that are rich in oil while bioethanol is obtained from plants that are rich in fermentable sugar or other carbohydrates which can further be broken down to fermentable sugars. The major commercial sources of bioethanol include sugarcane, sugar beets, and corn. Sweet sorghum is also recently gaining popularity as a major feedstock for commercial bioethanol production because of its numerous advantages which include high fermentable sugar, early maturity, and low nutrient and water requirements [ 4 , 5 ].

These features have made sweet sorghum a choice bioethanol crop of the semiarid tropics in the sub-Saharan Africa and India [ 6 ]. It is a crop of high universal value since it can be cultivated in tropical, subtropical, temperate, and semiarid regions, as well as in poor quality soils of the world [ 7 ]. The biomass yields of sweet sorghum have been reported to vary across a range of nitrogen N fertilizer rates, cultivars, and plant populations.

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For instance, Wortmann et al. Other workers such as Reddy et al. There is, however, very little or no information available in this part of the world on the effect of N fertilizer on the growth and especially the ethanol yield of sweet sorghum. This is because attention is devoted more to cultivating both grain and sweet sorghum types for their grains, and there is very low level of awareness on the usefulness of the crop for biofuel production.

Characterization of improved sweet sorghum cultivars

In order for sweet sorghum to be a sustainable energy crop, there is a need to not only breed high yielding varieties, but also develop and establish appropriate agronomic practices, including the use of optimum level of N fertilizer. This study was therefore carried out to assess the effect of nitrogen fertilizer application on the growth and ethanol yield of sweet sorghum varieties in the Southern Guinea Savannah agroecological zone of Nigeria.

The two sites fall within the Southern Guinea Savannah agroecological zone of Nigeria. The fields in both sites were cleared, ploughed, harrowed, and ridged. The seeds were sown directly on the ridges on 8 and 30 June at the Ilorin and Ejiba sites, respectively, with an intrarow spacing of 0.

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The value of ethanol yield is a direct result of brix value and the juice yield, which also correlates with the fresh stalk yield of the crop [ 22 ]. Significant differences were observed in the heights of the sweet sorghum varieties studied, especially towards the end of the measurement period i. Application of GGE biplot and AMMI model to evaluate sweet sorghum Sorghum bicolor hybrids for genotype 9 environment interaction and seasonal adaptation. The major commercial sources of bioethanol include sugarcane, sugar beets, and corn. This book serves as a ready reference on the detailed characterization of different improved sweet sorghum genotypes following the PPVFRA guidelines for the researchers, entrepreneurs, farmers and other stakeholders to identify the available sweet sorghum cultivars and understand their yield potential in tropics.

From theory to practice ,P. Methodology, results and discussion,C.

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Ganesh Kumar and P. Rainy season cultivars and hybrid parents, P.

Post-rainy season cultivars and hybrid parents,P. Commercialization - Status and way forward, P. Review Text From the reviews: It will be useful for Indian stakeholders who want to develop the ethanol production based on sweet sorghum, particularly in the choice of the cultivars to use for feed stock production. It will be also useful for breeders as the descriptors of the sweet cultivars are available at the same place which is not very common.

Review quote From the reviews: His current areas of research interest are on biofuels, resistance breeding, brown midrib mutants, energy and sweet sorghums, sucrose transporters as well as wide hybridization.

Characterization of Improved Sweet Sorghum Cultivars

He obtained his Ph. He is a recipient of DBT- postdoctoral fellowship and worked on interactions of bacterial leaf blight pathogen with R-gene pyramids of Rice with Dr. He is serving as an editorial board member of Sugar Tech. For instance, Wortmann et al. Other workers such as Reddy et al.

There is, however, very little or no information available in this part of the world on the effect of N fertilizer on the growth and especially the ethanol yield of sweet sorghum.

This is because attention is devoted more to cultivating both grain and sweet sorghum types for their grains, and there is very low level of awareness on the usefulness of the crop for biofuel production. In order for sweet sorghum to be a sustainable energy crop, there is a need to not only breed high yielding varieties, but also develop and establish appropriate agronomic practices, including the use of optimum level of N fertilizer. This study was therefore carried out to assess the effect of nitrogen fertilizer application on the growth and ethanol yield of sweet sorghum varieties in the Southern Guinea Savannah agroecological zone of Nigeria.

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The two sites fall within the Southern Guinea Savannah agroecological zone of Nigeria. The fields in both sites were cleared, ploughed, harrowed, and ridged. The seeds were sown directly on the ridges on 8 and 30 June at the Ilorin and Ejiba sites, respectively, with an intrarow spacing of 0.

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The seedlings were later thinned to two plants per stand. This was then supplemented with hoeing at eight weeks after sowing WAS. Nitrogen fertilizer was applied in two equal doses according to the treatment. The second dose was applied at 8 weeks after planting, immediately after hoeing. For the first dose, NPK Urea was used for the second dose and applied to each plot according to the required treatments. Plant height of five randomly selected plants from the inner rows of each plot were measured biweekly beginning from 4 to 10 WAS.

Leaf area per plant and dry matter yield were obtained at 6 and 10 WAS from the product of the length and breadth of each leaf and a factor of 0. Yield parameters obtained include fresh stalk yield, dry stalk yield, stalk girth, and stalk length. Ethanol yield was then estimated as a product of sugar yield and a factor, 0.

New Sorghum Varieties to Boost the Beer Industry Agri Business

The results of the physicochemical analysis Table 1 show that the soil of the two sites of the study could be classified as loamy sand. The soil pH, being slightly acidic 6.