scholarly journals The Effect of Variety and Harvesting Time of Sorghum Planted in Stylosanthes Pasture on Growth, Production and Prussic Acid Content

2019 ◽  
Vol 43 (3) ◽  
Author(s):  
Meita Puspa Dewi ◽  
Nafiatul Umami ◽  
Bambang Suhartanto
Keyword(s):  
Organic Matter ◽  
Plant Height ◽  
Acid Content ◽  
Organic Production ◽  
Prussic Acid ◽  
Organic Matter Production ◽  
Harvesting Time ◽  
Matter Production ◽  
Sorghum Variety ◽  
Growth Production

This research was aimed to determine the growth, production and prussic acid content of sorghum variety that planted on stylosanthes pasture with different harvesting time. This research was done using split-plot design with three replications which sorghum variety (brown midrib resistance (BMR) and Super-2) as the main plot and harvesting time (6, 8 and 10 weeks) as the sub plot. The sorghum seeds were germinated for 12 days before planted on the 30 days stylosanthes pasture which was planted with planting space 25 x 25 cm. Sorghum was planted with planting space 75 x 25 cm. The variables observed were plants height, dry and organic matter production and prussic acid. Data obtained were analyzed statistically using analysis of variance and significantly different between means were tested with Duncan's New Multiple Range Test  (DMRT). Sorghum BMR had plant height, dry and organic matter production higher (P<0.05) than Super-2. Prussic acid content of BMR was lower (P<0.05) than Super-2. The older harvesting time increase (P<0.05) plant height, dry matter and organic production, but reduced (P<0.05) prussic acid content from 727.34 mg/kg to 241.71 mg/kg. Based on the results it can be concluded that the oldest harvesting time (10 weeks) produced the highest dry and organic matter, and reduce prussic acid content. Sorghum BMR is more productive and grew faster than Super-2. Sorghum BMR that harvested in 10-week shows the best in growth and productivity also had lower prussic acid content.

scholarly journals Content of Prussic Acid and Production of Sorghum Brown Midrib by Adding Urea Fertilizer and Extending Harvesting Time

2020 ◽  
Vol 21 (2) ◽  
pp. 93
Author(s):  
Nafiatul Umami ◽  
Nofi Isnaini ◽  
Bambang Suhartanto
Keyword(s):  
Organic Matter ◽  
Study Design ◽  
Acid Content ◽  
Dry Matter ◽  
Brown Midrib ◽  
Prussic Acid ◽  
Harvesting Time ◽  
Urea Fertilizer

Abstract. The aimed of this study to determine the effect of adding urea fertilizer (0, 50, and 100 kg/ha) and harvesting time (50, 80 and days) on prussic acid content and production of the brown midrib (BMR) sorghum plants. This study design was completely randomized factorial 3 x 3. The variables measured were prussic acid content, fresh yield, the production of dry matter (DM) and organic matter (OM). The results showed that content of prussic acid increased and highly significant with the addition of urea. The fresh yield of BMR sorghum is highest in the fertilization of 50 kg/ha and at the harvesting time 80 days. The highest DM production at fertilization 0 kg/ha and  harvesting time 110 day. OM production of the highest is the addition of fertilizer 0 kg/ ha and at the harvesting time on 80 days. From the results of this study concluded that on harvesting time 80 day sorghum  BMR have produces optimum and addition of urea to a level of 100 kg/ha did not affect the content of prussic acid, fresh yield, DM and OM.

scholarly journals Dark Fixation of CO2 in the Lake with Special Reference to Organic Matter Production

1970 ◽  
Vol 83 (990) ◽  
pp. 397-410 ◽  
Author(s):  
Masayuki TAKAHASHI ◽  
Yukuya YAMAGUCHI ◽  
Shun-ei ICHIMURA
Keyword(s):  
Organic Matter ◽  
Special Reference ◽  
Organic Matter Production ◽  
Matter Production ◽  
Dark Fixation

Effect of light on particulate and dissolved organic matter production of native and exotic macrophyte species in Patagonia

Hydrobiologia ◽  
2015 ◽  
Vol 766 (1) ◽  
pp. 29-42 ◽  
Author(s):  
Florencia Cuassolo ◽  
Marcela Bastidas Navarro ◽  
Esteban Balseiro ◽  
Beatriz Modenutti
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Organic Matter Production ◽  
Matter Production ◽  
Macrophyte Species ◽  
Effect Of Light

scholarly journals Nonsinking Organic Matter Production in the California Current

2018 ◽  
Vol 32 (9) ◽  
pp. 1386-1405 ◽  
Author(s):  
B. M. Stephens ◽  
M. Porrachia ◽  
S. Dovel ◽  
M. Roadman ◽  
R. Goericke ◽  
...  
Keyword(s):  
Organic Matter ◽  
California Current ◽  
Organic Matter Production ◽  
Matter Production

scholarly journals Form III RubisCO-mediated transaldolase variant of the Calvin cycle in a chemolithoautotrophic bacterium

2019 ◽  
Vol 116 (37) ◽  
pp. 18638-18646 ◽  
Author(s):  
Evgenii N. Frolov ◽  
Ilya V. Kublanov ◽  
Stepan V. Toshchakov ◽  
Evgenii A. Lunev ◽  
Nikolay V. Pimenov ◽  
...  
Keyword(s):  
Organic Matter ◽  
De Novo ◽  
Calvin Cycle ◽  
Ribulose Bisphosphate Carboxylase ◽  
Bisphosphate Carboxylase ◽  
Organic Matter Production ◽  
Matter Production ◽  
Ribulose Bisphosphate Carboxylase Oxygenase ◽  
Key Enzyme ◽  
Nucleoside Metabolism

The Calvin–Benson–Bassham (CBB) cycle assimilates CO2for the primary production of organic matter in all plants and algae, as well as in some autotrophic bacteria. The key enzyme of the CBB cycle, ribulose-bisphosphate carboxylase/oxygenase (RubisCO), is a main determinant of de novo organic matter production on Earth. Of the three carboxylating forms of RubisCO, forms I and II participate in autotrophy, and form III so far has been associated only with nucleotide and nucleoside metabolism. Here, we report that form III RubisCO functions in the CBB cycle in the thermophilic chemolithoautotrophic bacteriumThermodesulfobium acidiphilum,a phylum-level lineage representative. We further show that autotrophic CO2fixation inT. acidiphilumis accomplished via the transaldolase variant of the CBB cycle, which has not been previously demonstrated experimentally and has been considered unlikely to occur. Thus, this work reveals a distinct form of the key pathway of CO2fixation.

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