Influence of Bagging Sweet Sorghum Panicles on Stalk Yield and Juice Quality
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ABSTRACT Sweet sorghum culture is an alternative to sugar and ethanol production. With the aim of evaluating herbicide tank-mix selectivity associated or not to sweet sorghum seed treatment with naphthalic anhydride, two experiments with ESX5200 and EJX7C5110 hybrids were performed in red oxisol (clayey) field conditions, in the municipality of Campo Mourão, Paraná state. A randomized block design was used, with 4 x 2 factorial scheme, with four replications. The first factor represented three herbicide associations and a control sample without herbicide, and the second factor was constituted by the absence or presence of seed treatment with naphthalic anhydride (5.0 g kg-1). Herbicide treatments were tank-mixes of atrazine + S-metolachor (2,640 + 480 g ha 1) (pre-emergence); atrazine + S-metolachlor + isoxaflutole (2,640 + 480 + 11.25 g ha-1) (pre-emergence) and atrazine + S-metolachlor (1,500 + 384 g ha-1) (post-emergence). The following characteristics were evaluated: intoxication, plant height, stalk diameter, number of internodes per stalk and plant density, performed 60 days after emergence (DAE); stalk yield and Brix, were evaluated on day 85 DAE. Atrazine + S-metolachlor tank-mix applied in pre or post-emergence did not affect growth, development, yield and stalk quality of the ESX5200 and EJX7C5110 sweet sorghum hybrids. Sweet sorghum seed treatment with naphthalic anhydride provided partial protection against the action of atrazine + s-metolachlor + isoxaflutole tank-mixes, being more evident for the ESX5200 hybrid.

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Bio-Fuel Potential of Some Sweet Sorghum Genotypes [Sorghum bicolor (L.) Moench ssp. saccharatum]

Journal of Energy Research and Reviews ◽

10.9734/jenrr/2020/v6i430174 ◽

2020 ◽

pp. 15-22

Author(s):

Ayse Gulgun Oktem ◽

Abdullah Oktem ◽

Timucin Tas ◽

Celal Yucel

Keyword(s):

Sweet Sorghum ◽

Ethanol Yield ◽

Renewable Energy Sources ◽

Block Design ◽

Sugar Yield ◽

Energy Sources ◽

Juice Yield ◽

Stalk Yield ◽

Sorghum Genotypes ◽

Theoretical Ethanol Yield

The fossil energy sources used in the world are gradually decreasing and limited. Fossil fuels cause environmental pollution, and the unit price is constantly increasing. For this reason, demand for cheaper and renewable energy sources that do not pollute the environment is increasing day by day. The sweet sorghum plant has attracted attention in recent years with its high biomass yield, sugar content and bioethanol yield. In this study, it was aimed to determine the bio-fuel potential of some sweet sorghum genotypes in semi-arid climatic conditions. The experiment was set up in randomized complete block design with 4 replicates. Research was carried out in 2015 under Harran Plain (36o 42’ N and 38o 58’ E) second crop conditions, Sanliurfa, Turkey. In the study 49 genotypes of sweet sorghum were used. Stalk yield, juice yield, syrup yield, brix, sugar yield and theoretical ethanol yield were determined in the study. Significant differences were found between the genotypes for tested characteristics (P≤0.01). Stalk yield ranged from 7110.0 kg da-1 to 24262.5 da-1, juice yield from 2550.0 L da-1 to 12187.5 L da-1, syrup yield from 291.4 L da-1 to 2242.5 L da-1. Also, brix value varied between %7.0 and %18.87, sugar yield between 247.7 da-1 and 1906.1 da-1, Theoretical ethanol yield between 131.9 L da-1 and 1014.8 L da-1. Considering to stalk yield, juice and syrup yield, brix, sugar yield and theoretical ethanol yield; Nebraska sugar, Topper 76, Smith, M81E and Corina genotypes were found as the best. As a result of research, 21 genotypes with better performance than the others were selected for further studies.

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The Effects of Nitrogen Treatments, Cultivars and Harvest Stages on Stalk Yield and Sugar Content in Sweet Sorghum

Asian Journal of Plant Sciences ◽

10.3923/ajps.2007.423.426 ◽

2007 ◽

Vol 6 (2) ◽

pp. 423-426 ◽

Cited By ~ 14

Author(s):

A. Almodares ◽

M.R. Hadi ◽

M. Ranjbar ◽

R. Taheri

Keyword(s):

Sweet Sorghum ◽

Sugar Content ◽

Stalk Yield ◽

Nitrogen Treatments

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Stalk-Juice Quality Traits of Sweet Sorghum as Affected by Season in Sudan

Journal of Horticulture and Plant Research ◽

10.18052/www.scipress.com/jhpr.11.1 ◽

2020 ◽

Vol 11 ◽

pp. 1-13

Author(s):

Salma I. Abdalbagi ◽

Maarouf I. Mohammed

Keyword(s):

Sweet Sorghum ◽

Reducing Sugars ◽

Quality Parameters ◽

Future Research ◽

Juice Quality ◽

Quality Traits ◽

Design Data ◽

Total Sugars ◽

Yield Parameters ◽

Season Interaction

An experiment was conducted in Shambat (2012-2013) during the summer and winter seasons to study the stalk-juice quality parameters of 29 exotic and local sweet sorghum varieties as affected by season. The objectives were to provide basic data attributing to syrup and sugar (jaggery) production in the Sudan. The materials were arranged in RCB design. Data were collected on brix, pol (sucrose %), reducing sugars, total sugars, purity and pH. The single and combined analysis of variance revealed highly significant differences among varieties for all traits studied. The variety x season interaction was significant for all traits other than total sugars %, implying the need for considering the variety choice in each season. The results of juice quality parameters were mostly within the range reported in the literature. The exotic materials excelled the local ones in brix, pol%, total sugars% and purity. The exotic varieties: N100, Red-X, Hastings and N110 as well as the local Ankolib selections: AnkNyala and Ank36 were identified as having juice quality traits suitable for syrup production. The exotic varieties: BlueRibbon, KansasCollies and Brawley were identified for sugar (jaggery) production. It was concluded that interaction of variety x season and yield parameters for juice, grain and stover should be considered when determining the choice of the variety. Future research should focus on developing multi-purpose varieties capable for concurrent production of syrup/sugar, grain and stover.

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Juice chemical properties of 24 sorghum cultivars under varying levels of sugarcane aphid (Melanaphis sacchari) infestation

Arthropod-Plant Interactions ◽

10.1007/s11829-021-09855-z ◽

2021 ◽

Author(s):

Joseph E. Knoll ◽

Minori Uchimiya ◽

Karen Harris-Shultz

Keyword(s):

Sweet Sorghum ◽

Chemical Properties ◽

Marginal Effect ◽

Juice Quality ◽

Melanaphis Sacchari ◽

Fluorescence Excitation ◽

Total Sugars ◽

Sweet Sorghum Juice ◽

Sugarcane Aphid ◽

Aconitic Acid

AbstractSugarcane aphids [Melanaphis sacchari (Zehntner)] have become a significant pest of grain, forage, and sweet sorghum [Sorghum bicolor (L.) Moench] in the USA in recent years. However, the effects of sugarcane aphid damage on sweet sorghum juice quality have not been well studied. A three-year (2015–2017) field study was conducted at Tifton, GA to assess planting date effects (April, May, or June planting) and cultivar responses (24 cultivars) to sugarcane aphids in sorghum. Aphid damage ratings were measured in all three years and cumulative aphid days were measured in 2016 and 2017. Cumulative aphid days (ln scale) and damage ratings (relative marginal effect) were correlated in five of the six plantings. Stem juice was collected at maturity from seven plantings for chemical analyses, which included HPLC, fluorescence excitation-emission spectrophotometry with parallel factor analysis (EEM/PARAFAC), and cyclic voltammetry (CV). Aphid damage ratings and cumulative aphid days were negatively correlated with sugar-related traits, particularly brix and total sugars. In four plantings, significant negative correlations (r ≤ −0.493) between trans-aconitic acid concentration and aphid damage were observed. Fluorescence and electrochemical properties related to the presence of polyphenols also showed correlations with aphid damage, particularly in the resistant landrace No. 5 Gambela. These secondary metabolites may play a role in sugarcane aphid resistance or tolerance. Stability analysis revealed that the more tolerant cultivars were able to maintain high concentrations of total sugars and trans-aconitic acid across environments.

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