Specific Gravity, Dry Matter Concentration, pH, and Crisp-making Potential of Ethiopian Potato (Solanum tuberosum L.) Cultivars as Influenced by Growing Environment and Length of Storage Under Ambient Conditions

2010 ◽  
Vol 53 (2) ◽  
pp. 95-109 ◽  
Author(s):  
Y. Asmamaw ◽  
T. Tekalign ◽  
Tilahun Seyoum Workneh
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Dry Matter ◽  
Solanum Tuberosum L ◽  
Ambient Conditions ◽  
Dry Matter Concentration ◽  
Growing Environment ◽  
Matter Concentration

Mapping dry matter and sugars in potato tubers for prediction of whole tuber process quality

1997 ◽  
Vol 77 (3) ◽  
pp. 461-467 ◽  
Author(s):  
M. K. Pritchard ◽  
M. G. Scanlon
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Dry Matter ◽  
Solanum Tuberosum L ◽  
Sucrose Concentration ◽  
Longitudinal Axis ◽  
Quality Parameters ◽  
Russet Burbank ◽  
Tuber Quality ◽  
The Difference

Processing quality parameters within different sections of potato (Solanum tuberosum L.) tubers grown in Manitoba were measured to determine variability within tubers and to determine if whole tuber quality could be predicted from a specific section. The section that provided the best prediction of overall tuber quality parameters was determined. Changes in specific gravity (SG) and sugars in the outside and the inside of tubers during several months of storage were also measured. Dry matter (DM) of potato cvs. Russet Burbank and Shepody was generally higher at the apical and stem ends than in the middle section and was significantly higher in the outside than in the inside of the tuber. Sucrose concentration generally decreased from the stem end to the apical end of the tuber in Russet Burbank but increased from the stem end to the apical end in Shepody. Sucrose, glucose, and fructose were generally greater, though not always significantly, in the inside of the tuber compared with the outside with the exception of sucrose in Shepody where it was somewhat higher in the outside section. Glucose and fructose generally decreased from stem end to apical end although the difference between the two ends was significant only in Shepody. There was more variability in DM and the three sugars within Shepody tubers than those of Russet Burbank. The outer section of the tuber at the centre of the longitudinal axis (CO) was, overall, most highly correlated to the DM (r2 > 0.91) of the entire tuber for both cultivars and would be the most appropriate single location for estimating the DM of the entire tuber. Sugar concentrations of whole tubers could not consistently be estimated from that of any particular tuber location although the CO section had the highest correlations overall. During 6 mo storage SG did not change while sucrose decreased and glucose and fructose generally increased in both the outside (CO) and inside (CI) of the tuber. Linear regressions relating DM, SG, and sugars of the CO section to the whole tuber, and relating DM to SG were developed. Key words: Solanum tuberosum L., specific gravity, storage, processing, product quality

Accumulation, organic carbon and dry matter concentration of sediment in commercial channel catfish ponds

2004 ◽  
Vol 30 (3-4) ◽  
pp. 115-126 ◽  
Author(s):  
James A. Steeby ◽  
John A. Hargreaves ◽  
Craig S. Tucker ◽  
Sue Kingsbury
Keyword(s):  
Organic Carbon ◽  
Channel Catfish ◽  
Dry Matter ◽  
Dry Matter Concentration ◽  
Catfish Ponds ◽  
Matter Concentration

scholarly journals Sowing methods of maise for hay in the forest-steppe zone of Western Siberia

2021 ◽  
pp. 31-36
Author(s):  
N. I. Kashevarov ◽  
A. A. Polishchuk ◽  
A. N. Lebedev ◽  
V. I. Ponamareva ◽  
M. V. Khazov
Keyword(s):  
Dry Matter ◽  
Single Species ◽  
Steppe Zone ◽  
Matter Content ◽  
Forest Steppe ◽  
Dry Matter Content ◽  
Seeding Rate ◽  
Dry Matter Concentration ◽  
Sowing Experiment ◽  
Matter Concentration

The authors showed the results of studies of productivity parameters of different early maturing maise hybrids depending on the method of sowing. Experiment included 5 variants: single- seeded hybrids Kubansky 101 and Kubansky 500, Kubansky 101 + Kubansky 500 (50 + 50% of the full seeding rate), Kubansky 101 + Kubansky 500 (25 + 75%) and Kubansky 101 + Kubansky 500 (75 + 25%). The authors carried out a biological yield survey on 10 September. This recording showed that the ultra-early-ripening hybrid Kubansky 101 CB was in the phase of milk-wax maturity of the grain, and the late-ripening Kubansky 500 CB was in the phase of cob formation. In single-species crops, the yields were naturally higher. The late-maturing hybrid yielded 82.0 t/ha, 38.1 t/ha higher than the ultra-maturing hybrid. However, the dry matter yield of the second hybrid was 15.9 % higher, and the cob yield was 29 % higher. The dry matter concentration of the hybrid Kubansky 500 was only 18.8 %. The hybrid Kubansky 101 CB had a dry matter concentration of 34.7 %. Different variations with the ratio of hybrids of different ripeness groups in the sowing showed that in green matter yield, the variants where the proportion of late-ripening hybrid is higher are superior. Thus, the presence of 75% hybrid Kubansky 500 CB allowed obtaining the highest yield of 77.2 t/ha. This yield is almost two times higher than the yield of the single-variety ultra-ripening hybrid (43.9 t/ha). However, the dry matter concentration here was 20.2 %. According to the biochemical analysis of the silage batches harvested, all the forages were benign. No oily acid was detected, and lactic acid predominated over acetic acid. Hay prepared from hybrid Kubansky 101 SV was 33.8% in dry matter content, which compares favourably with silage prepared from hybrid Kubansky 500 SV and mixtures with Kubansky 101 SV. The hybrid Kubansky 500 SV and mixtures with Kubansky 101 SV accounted for 21 % dry matter content. In silage prepared from hybrid Kubansky 101 SV, the percentage of dry matter is 24.2-25 %.

The effect of dry matter concentration on component digestibility and retention in growing/finishing pigs fed diets varying only in water:dry matter ratio

2002 ◽  
Vol 2002 ◽  
pp. 82-82
Author(s):  
J.E. Thompson ◽  
J. Wiseman ◽  
B.P. Gill
Keyword(s):  
Growth Performance ◽  
Dry Matter ◽  
Live Weight ◽  
Matter Content ◽  
Liquid Diet ◽  
Dry Matter Content ◽  
Finishing Pigs ◽  
Dry Matter Concentration ◽  
Matter Concentration

There is potential for improving the growth performance of pigs through a better understanding of factors that influence the digestibility of nutrients and energy in liquid feeds. These factors include dry matter content and the size and distribution of particles of the dry feed components within the liquid diet. The objective of the current study was to determine if changing the dry matter concentration of liquid feeds affects the digestibility and retention of nutrients and energy in pigs growing from 35kg to 95kg live weight.

THE EFFECT OF SEEDPIECE POPULATION AND HARVEST DATE ON YIELD AND ECONOMIC VALUE OF CARLTON POTATOES IN MANITOBA

1989 ◽  
Vol 69 (3) ◽  
pp. 1019-1025
Author(s):  
B. L. REX ◽  
W. A. RUSSELL ◽  
H. R. WOLFE
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Positive Relationship ◽  
Solanum Tuberosum L ◽  
Economic Value ◽  
Hollow Heart ◽  
Growing Seasons ◽  
Rainfed Conditions ◽  
Tuber Specific Gravity ◽  
Final Harvest

The effect of seedpiece population on Carlton potatoes for the early tablestock market was evaluated under rainfed conditions in southern Manitoba over the 1982, 1983 and 1985 growing seasons. Populations of 21.7, 26.3, 33.3, and 45.5 thousand seedpieces per hectare were harvested 75, 85 and 95 d after planting each year. Total and marketable tuber yields increased with population. Tuber specific gravity increased with population in 1982 and in the first two harvests in 1983, but no trends were observed in 1985 and in the final harvest in 1983. The incidence of hollow heart in marketable tubers was very low in all 3 yr, and was not related to seedpiece population or date of harvest. Net crop value (NCV) usually increased with successive harvests within each year, and generally showed a positive relationship with seedpiece population.Key words: Potato, Solanum tuberosum L., Carlton, seedpiece population, hollow heart, specific gravity

ESTIMATION OF GENERAL AND SPECIFIC COMBINING ABILITIES IN POTATO

1976 ◽  
Vol 18 (3) ◽  
pp. 463-470 ◽  
Author(s):  
G.C.C. Tai
Keyword(s):  
Solanum Tuberosum ◽  
Specific Gravity ◽  
Combining Ability ◽  
Solanum Tuberosum L ◽  
High Yield ◽  
Average Weight ◽  
Stabilizing Selection ◽  
Low Frequencies ◽  
Significant Difference ◽  
Selection For

Seven quantitative traits of the cultivated potato (Solanum tuberosum L.) were studied in a partial diallel cross experiment. Large specific combining ability effects were observed for total and marketable yields, total number of tubers, and number of marketable tubers. Large general combining ability effects were obtained for average weight per tuber, average weight per marketable tuber, and specific gravity. The SCA effect for specific gravity was also significant. It is suggested that the difference of combining ability performance noted above for the two yield components was due to a long history of directional selection for high yield and stabilizing selection for tubers within the marketable size range. There were low frequencies of both GCA and SCA effects showing significant difference from the population mean. This is interpreted as an affirmation of the narrow genetic base which exists in the present gene pool in Solanum tuberosum. Heritability estimates based on GCA effects indicated that parents can be efficiently selected for average tuber weight and specific gravity.

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