Studies were separately conducted to determine the effects of cultivar, planting date, and fungicide usage on rice blast disease, caused by Pyricularia grisea (Cooke) Sacc. [= Magnaporthe grisea (Hebert) Barr] in Kecamatan Manggala, South Sulawesi Indonesia. The four rice varieties were IR-66, Cisantana, Cigeulis, and Filipin. The results showed that IR-66 was moderately resistant to leaf and neck blast, with the lowest percentage unfilled grains per panicle. Cisantana reacted moderately resistant to leaf blast, but moderately susceptible to neck blast. Cigeulis was moderately susceptible to leaf and neck blast, while Filipin showed a highly susceptible reaction to both leaf and neck blast, and a 31% plant population death due to the blast disease. With respect to planting dates (February 4, March 22, and May 16), plants transplanted in March had the highest leaf blast severity, neck blast incidence, and the lowest yield. Seven fungicides (four are recommended for use in rice in Indonesia: flusilazol, difenoconazole, difenokonazole+propikonazole, and carbendazim (6.2%)+mancozeb (73.8%)) and three generally used ones (menefoxam (4%)+mancozeb (64%), chlorothalonyl, and metalaxyl) which were evaluated against the rice blast disease, showed the recommended fungicides for use in rice to be more effective in suppressing blast and protecting yield, compared to the other fungicides.

Dehydration during exercise has been shown to limit performance. This study aimed to determine the best hydrocolloid for producing sports energy gel from chia seeds (Salvia hispanica L.). This study was a completed random-design study using one factor: the addition of 0.1% w/w hydrocolloids (SEG1: xanthan gum; SEG2: pectin; and SEG3: carboxymethyl cellulose). A sports energy gel was then analyzed for pH, viscosity, total soluble solids, potassium content, and gross energy. The sensory characteristics that were analyzed include color, texture, aroma, and flavor, using hedonic tests on 25 panelists. The addition of different hydrocolloids resulted in significant differences in pH, viscosity, total soluble solids, potassium, and energy contents (p = 0.026; 0.0001; 0.0001; and 0.0001). Differences in hydrocolloid types also led to differences in the panelists’ perceptions of the sports energy gels’ colors and textures (p = 0.008 and 0.0001). The best formulation was the sports energy gel with added xanthan gum, which showed the highest average energy, total soluble solids, potassium, and viscosity values, and the lowest average of pH values (60.24 ± 0.340, 10.6 ± 0.08, 19.6 ± 0.23, 367.4 ± 9.81, and 5.2 ± 0.38, respectively). The conclusion is that chia seeds can be used as the main ingredient for producing a high-energy sports gel. Energy has a huge impact on a person’s physical and mental health.

Abstract. Lestari EG, Dewi IS, Nur A, Yunita R, Mastur. 2019. Genetic x environment interaction on agronomic characters and yield components of sweet sorghum (Sorghum bicolor) mutant strain. Biodiversitas 20: 3705-3714. Sweet sorghum (Sorghum bicolor (L.) Moench) belongs to cereal plants that have prospects for commercial development in Indonesia, since it can adapt widely in sub-optimal land, and has many functions. However, there is still limited sweet sorghum variety that has been released in Indonesia. The study aimed to evaluate the influence of genetic x environment interaction on agronomic characters and yield components of sweet sorghum mutant strain. Adaptation test was held in 8 locations in Indonesia, namely Pekalongan, Bantul, Gunung Kidul, Lampung, Malang, East Lombok, Bontobili and Maros, from May to November 2017. The material tested was 10 M7 mutant strains and two check varieties (Numbu and Super 1). The experiment was arranged in a randomized complete block design (RCBD). There were three replications in form of blocks and each block consisted of 40 sorghum plants. The result showed that genetic x environment interaction affected the agronomic characters and yield components of sweet sorghum. Several characters such as plant height, panicle diameter, seed production, sugar brix and stem juice volume of sweet sorghum mutants were greater than check varieties. The highest seed yield was found in MB-1 strain of sweet sorghum mutant that cultivated in Pekalongan site.

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Sweet sorghum is a potential crop of agro-industry for food, feed and bioenergy. The availability of sweet sorghum varieties in Indonesia is still limited. One of the varieties that have a great demand is Numbu. Numbu has a large seed size, attractive color and contains juice in the stem, however it is still has weaken on small stems and low and unstable brix juice content. The efforts to assemble new superior varieties can be achieved through mutation breeding activities. Mutant lines produced from irradiation of Numbu varieties are expected to experience better character improvements than Numbu varieties. This study aims to find out the character improvements that occur in Numbu mutant lines which are tested in several different locations and to select potential Numbu mutant lines to be released as new superior sweet sorghum varieties. The research was conducted in five environments using 10 Numbu mutant lines and arranged into randomize block design with 3 replications. The results showed that the environment, genetic and interaction of genetic x environment had a significant effect for all observed, while the interaction of genetic x environments value for all observed characters have high variation depend on environment and environement gave the biggest contribution to variation, however generally mutant lines were have a better characters than Numbu variety There is no important characters has stability performance in various environment, but they have a good performance on specific environment. Four mutant lines those have the potential to be released as new superior varieties were MNB3, MNB5, MNB8 and MNB10.

Active Pharmaceutical Ingredient (API) is a substance used in a finished pharmaceutical product, intended to furnish pharmacological activity or contribute direct effect in the diagnosis, cure, mitigation, treatment or prevention of disease. It also provides a direct effect in restoring, correcting or modifying physiological functions in human beings. Macroalgae, also known as seaweed, are plant-like organisms that can be found in a marine habitat. Macroalgae has been given huge concern because of its high nutritional value and short-term growth, which is only 45 days per cycle. Therefore, three red macroalgae species of Eucheuma denticulatum, Gracilaria tikvahiae and Kappaphycus striatum), as well as green and brown macroalgae species of Caulerpa lentillifera and Padina pavonica were selected to determine their carotenoids content and composition by using UV-Vis spectrophotometer and HPLC analysis. The main carotenoids identified in red, green and brown macroalgae species were zeaxanthin, lutein, ?-carotene and violaxanthin. Marked differences were observed between red, green and brown macroalgae carotenoids content and composition. Zeaxanthin and ?-carotene were detected in all red, green and brown macroalgae ranged from 3.61 to 21.30 ?g/g DW and 2.44 to 10.70 ?g/g DW respectively. Violaxanthin was found only in green macroalgae (8.93 ?g/g DW) whereas lutein was found only in red macroalgae (9.57 to 38.60 ?g/g DW). In terms of total carotenoid content, green macroalgae contained the highest amount of carotenoid (100.89 ± 14.71 ?g/g DW). The significant outcome of the research will be new natural carotenoid pigment sources as potential active pharmaceutical ingredients which can be beneficial to halal health-promoting products industry.