scholarly journals Influence of volume container in the production of rhizomes in Seemannia (Gesneriaceae)

2019 ◽  
Vol 25 (3) ◽  
pp. 287-292
Author(s):  
Paula Bologna ◽  
Santiago Stancanelli
Keyword(s):  
Statistical Analysis ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Perennial Plant ◽  
Conventional Management ◽  
Good Production ◽  
Matter Production ◽  
Herbaceous Perennial ◽  
Dry Matter Weight

Abstract Seemannia Regel belongs to the Gesnereacieae family. It is an herbaceous perennial plant with colorful and brilliant flowers that produces fleshy scaly rhizomes with axillary dormant buds. The objective of this study was to evaluate the effect of the volume of the container in the production and the quality of the rhizomes. Plants of a select hybrid of Seemnania were used. Three volume of container were tested: v1 of 1 L, v2 of 1,5 L and v3 of 2 L. Plants were cultivated in the containers following a conventional management. Dry matter, production (number and weight of rhizomes) and quality of the rhizomes were recorded. The rhizomes were classified into four qualities (A, B, C, D) according to the length and width, and the number of the scales. All data was subject to statistical analysis. Dry matter, weight and number of rhizomes increased as the volume of container increased. The v3 container recorded the highest values for these three parameters. Major volume of container, major was the development of vegetative mass and consequently the number and the weight of rhizomes were higher. In regard to the qualities of the rhizomes, v1 and v3 treatments had a better proportion of A rhizomes (the bigger size) compared to v2 treatment. The knowledge of the rhizome quality can be useful to the growers in order to select the best rhizome size for a good production. The v3 treatment recorded the highest number of A rhizomes, that we consider a good quality, because it has the bigger size with more scales and consequently more propagules.

scholarly journals Content of inorganic solutes in lettuce grown with brackish water in different hydroponic systems

2017 ◽  
Vol 21 (3) ◽  
pp. 150-155 ◽  
Author(s):  
Alide M. W. Cova ◽  
Fabio T. O. de Freitas ◽  
Paula C. Viana ◽  
Maria R. S. Rafael ◽  
André D. de Azevedo Neto ◽  
...  
Keyword(s):  
Fresh Water ◽  
Nutrient Solution ◽  
Brackish Water ◽  
Dry Matter ◽  
Dry Matter Production ◽  
Matter Production ◽  
Water Plant ◽  
Hydroponic Systems ◽  
Inorganic Solutes

ABSTRACT The objective of this study was to evaluate the growth and accumulation of ions in lettuce grown in different hydroponic systems and recirculation frequencies. The experimental design was randomized blocks with 8 treatments and 4 replicates. The evaluated hydroponic systems were Nutrient Flow Technique (NFT) and an adapted Deep Flow Technique (DFT), the latter with recirculation frequencies of 0.25, 2 and 4 h. Both systems used fresh water and brackish water. Plant growth, accumulation of inorganic solutes (Na+, K+, Cl- and NO3-) and the correlation between dry matter production and Na+/K+ and Cl-/NO3- were evaluated. The salinity of the water used to prepare the nutrient solution caused decrease in growth and K+ and NO3- levels, and increased contents of Na+ and Cl- in the plants. When using fresh water the highest dry matter production was obtained in the NFT system. In case of brackish water the adapted DFT system increased the production, in relation to NFT system (at same recirculation frequency: 0.25 h). It was found that the choice of the type of hydroponic system and recirculation interval for the cultivation of lettuce depends on the quality of the water used to prepare the nutrient solution.

A comparison of twenty Digitaria accessions at four sites in south-east Queensland

1978 ◽  
Vol 18 (95) ◽  
pp. 817 ◽  
Author(s):  
RW Strickland ◽  
KP Haydock
Keyword(s):  
Nutritional Quality ◽  
Dry Matter ◽  
Potassium Content ◽  
Dry Matter Production ◽  
Animal Nutrition ◽  
North West ◽  
Matter Production ◽  
Cutting Frequency ◽  
Sodium And Potassium

Dry matter production and quality of 20 Digitaria accessions, cut four- and eight-weekly, were compared at four sites in south-east Queensland differing in soils, rainfall and frost incidence over the period 1971-73. The wettest, least frosted site was at Beerwah (70 km north of Brisbane) and the two driest, most frosted sites were at Narayen (480 km north-west of Brisbane). Samford (near Brisbane) was intermediate in terms of rainfall and frost incidence. Dry matter production over the two years varied markedly with site, accession and cutting frequency, and there were interactions between all three. D. smutsii (CPI 38869) was well adapted to all sites and Narayen in particular, O. macroglossa (CPI 16267) was specifically adapted to Beerwah, and D. milanjiana (CPI 41 192) and the two D. smutsii accessions (CPI 38869,16778A) to Samford. Accessions of D. milanjiana, O. pentzii and D. setivalva also performed well at Narayen. Accessions differed in resistance to fire, frost, rust and insects, and in nutritional quality. However, all were adequate for ruminant nitrition. An examination of the quality of the accessions as standover winter feed at Narayen showed that frost lowered digestibility, and the sodium and potassium content of the herbage, but not to the level where animal nutrition would be affected.

scholarly journals Produksi dan Kandungan Nutrien Beberapa Varietas Sorgum Hybrid dengan Jarak Tanam Berbeda sebagai Sumber Pakan

2019 ◽  
Vol 17 (1) ◽  
pp. 1-5
Author(s):  
Hajar Hajar ◽  
Luki Abdullah ◽  
Didid Diapari
Keyword(s):  
Biomass Production ◽  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Plant Production ◽  
Crude Fiber ◽  
Dry Matter Production ◽  
Fresh Biomass ◽  
Matter Production

Sorghum feed is a type of cereal plant that has potential use as animal feed or forage. The reseach aim was to evaluate production and nutritional quality of some sorghum hybrid varieties, and determined the optimal spacing of sorghum plants. This research was arranged in a factorial randomized block design with 6 treatments and four replications. The first factor was the varieties of 12FS9006, 13FB7001 and 12S49001. The second factor was space of 25x25cm and 25x40 cm. The variables were fresh and dry matter of biomass production and also nutrient (ash, crude fiber, crude protein, Neutral Detergen Fiber and Acid Detergen Fiber. Sorghum varieties had significant effect (p<0.05) to fresh biomass production, dry matter biomass production, ash, crude ϐiber and crude protein). The space had a significant effect (p<0.05) to the dry matter production of biomass and crude fiber. The average variety of fresh biomass plant production was (18.90 tons ha-1), dry matter production of biomass was (4 ton ha-1), ash (5.51%), crude ϐiber (30.90%) and crude protein (8.45%). The average dry matter production was 4.34 tons ha-1 and crude ϐiber 29.96%. It can be concluded that the highest production and the best nutrient quality of sorghum hybrid was obtained at the sorghum variety of 12S49001, the distance of 25x25cm was the best plant space for hybrid sorghum production

scholarly journals Translocation and bioconcentration of trivalent chromium in green beans grown on bioponics

2020 ◽  
Vol 10 (7) ◽  
pp. 708
Author(s):  
Loubna Azariz ◽  
Mohamed Fekhaoui ◽  
Souad Elblidi ◽  
Ahmed Yahyaoui
Keyword(s):  
Nutrient Solution ◽  
Crop Production ◽  
Dry Matter ◽  
Growth Parameters ◽  
Trivalent Chromium ◽  
Dry Matter Production ◽  
Phaseolus Vulgaris L ◽  
Green Beans ◽  
Matter Production

the increasing number of cases of soil contamination by trace elements have affected crop production, and represents a risk threatening the quality of our food products. Some of these contaminants, such as trivalent chromium Cr (NO<sub>3</sub>)<sub>3,</sub> which is similar to micronutrients, can, therefore, be absorbed by plants and whose phytotoxicity has long been considered negligible, and largely underestimated. The purpose of this work was to study the transfer of trivalent chromium from nutrient solution to green beans <em>Phaseolus vulgaris L</em> grown on bioponics; the contamination responses were determined in terms of growth parameters, yield, and dry matter production; at various concentrations (5, 10 and 20 ppm). Chromium trivalent effects have also been studied in tissues plant. Results showed that the absorption of trivalent chromium from the nutrient solution and its translocation to the aerial tissues plants had no adverse effects on growth parameters, and also on beans yield. Results also showed that chromium accumulates in roots rather than in the other tissues, and did not reduce the dry matter production, in terms of translocation and bioconcentration. The transfer factor is low and green beans cannot be defined as a hyperaccumulator of chromium.

scholarly journals Spinach and pepper response to nitrogen and sulphur fertilization

2011 ◽  
Vol 50 (No. 7) ◽  
pp. 303-308 ◽  
Author(s):  
M. Smatanová ◽  
R. Richter ◽  
J. Hlušek
Keyword(s):  
Dry Matter ◽  
Nitrogen Concentration ◽  
Essential Amino Acids ◽  
Dry Matter Production ◽  
Nitrate Content ◽  
Matter Production ◽  
Applied Dose ◽  
N:S Ratio ◽  
Positive Effect

A vegetation pot experiment was established to explore the effect of two doses of nitrogen (0.6 and 0.9 gN in the form of ammonium sulphate) and two doses of sulphur (20.6 and 30.6 mg/kg of soil) on the yields and quality of spinach and pepper in comparison with a natural level (7.85 mg/kg). The results of the experiments confirmed that the application of sulphur by means of (NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub> in combination with nitrogen had a positive effect on yields and also on the quality of the vegetables. In the sulphur-free variants of spinach the effect was statistically significant and also when the levels of S in the soil were higher. Lower doses of nitrogen under increased levels of sulphur increased the yields statistically significantly (on average by 47%) and the sulphur concentration in the plants increased. The N:S ratio became narrower in proportion with the level of sulphur, particularly under a lower N level. The nitrate content in spinach corresponded with the applied dose of nitrogen and the nitrogen concentration. The sulphur level did not influence the content of C vitamin, but had a positive effect on the content of the essential amino acids cysteine and methionine. A mean level of S<sub>1</sub> in combination with a N<sub>1</sub> dose significantly increased pepper yields, narrowed the N:S ratio and was reflected in dry matter production per 1 g of N. The highest pepper yields were achieved with a dose of S<sub>1</sub>, which resulted in the highest dry matter production in the fruit per1 g of N under both levels of N. At the same time increasing the sulphur level reduced the content of nitrate and increased the level of cysteine from 0.11 to 0.305 g/kg.

Performance of Southern African Digitaria spp. in southern Queensland

1974 ◽  
Vol 14 (67) ◽  
pp. 186 ◽  
Author(s):  
RW Strickland
Keyword(s):  
Dry Matter ◽  
Mineral Content ◽  
Phosphorus Content ◽  
Clay Soil ◽  
Dry Matter Production ◽  
Cool Season ◽  
Rhodes Grass ◽  
Matter Production ◽  
Chloris Gayana

Dry matter production and quality of 45 Digitaria accessions were measured over the period 1964-70. In three experiments at Samford, south-east Queensland, the accessions were fertilized with either 336 or 672 kg ha-1 of N a year and cut four-weekly. Both total and cool season production was measured. Highest annual yields were produced by D. smutsii (40,000 kg ha-1), D. macroglossa (37,000 kg ha-1) and D. decumbens (30,000 kg ha-1). D. decumbens yielded up to 5000 kg ha-1 dry matter between May and September compared with up to 6800 kg ha-1 from D. pentzii, 6700 kg ha-1 from D. macroglossa and 6400 kg ha-1 from D. smutsii. In two other experiments persistence and production of nine accessions were compared with those of Rhodes grass (Chloris gayana) on heavy, gilgaied clay soil at Meandarra, Queensland and with Panicum coloratum var. makarikariense on a shallow, self mulching, sedentary black earth at Southbrook, Queensland. D. decumbens showed the greatest potential for persistence and production at Meandarra and one strain of D. smutsii had the greatest yields at Southbrook. Digestibility and mineral content varied little between species and were generally satisfactory for animal production. Digitaria tended to be higher in phosphorus content than P. coloratum and C. gayana.

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