scholarly journals Mitigation of CaCO3 Influences on Ipomoea batatas Plants Using Bacillus megaterium BSM 2894 var.

2021 ◽  
Author(s):  
Ahmed A. M. Awad ◽  
AlShaymaa I. Ahmed ◽  
Atef A.A. Sweed
Keyword(s):  
Bacillus Megaterium ◽  
Ipomoea Batatas ◽  
Total Yield ◽  
Tuberous Root ◽  
Soil Conditions ◽  
Phosphorus Fertilizer ◽  
Nutrients Uptake ◽  
Egyptian Soil ◽  
Mn Content ◽  
Low Solubility

Under Egyptian soil conditions, when phosphorus fertilizers were applied to the soil, it gets fixed and converts to unavailable form, leading to low solubility for the plant. This study were fulfilled on sweet potato (cv. Beauregard) under undesirable soil properties (CaCO3 10.8 vs 11.3%) using Bacillus megaterium DSM 2894 strain under different five mono calcium phosphate (CSP) levels [(69(CSP20); 138(CSP40); 207 (CSP60); 276 (CSP80) and 345 ((CSP100) kg ha-1 of calcium superphosphate (CSP)] to arise the potential efficiency of some nutrients uptake and decease the applied total amount of CSP in 2019 and 2020 seasons. The results mentioned that highest values were obtained by inoculated plants with DSM2894 strain under 20, 60 and 100% of CSP for all studied nutrients content in both seasons, except Mn content in the 2019. Also, inoculated plants with DSM2894 under previous treatments for all tuberous root nutrients content, except Fe and Zn contents in both seasons, in addition protein and anti-radical power and total yield. Statistically, leaf nutrients uptake and tuberous root content were highly significant affected by DSM and CSP combination. Appling of phosphorus fertilizer with DSM2894 mixture was gave the best values as compared with phosphorus fertilizer or DSM2894, individually.

EFFECTS OF INORGANIC NITROGEN AND PHOSPHORUS FERTILIZERS ON SELECTED SITES OF NATIVE GRASSLAND IN WESTERN CANADA

1965 ◽  
Vol 45 (3) ◽  
pp. 229-237 ◽  
Author(s):  
M. R. Kilcher ◽  
S. Smoliak ◽  
W. A. Hubbard ◽  
A. Johnston ◽  
A. T. H. Gross ◽  
...  
Keyword(s):  
Inorganic Nitrogen ◽  
Total Yield ◽  
First Year ◽  
Western Canada ◽  
Phosphorus Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Native Grass ◽  
Yield Increase ◽  
Native Grassland ◽  
Better Than

N, P, and N + P at 60, 26, and 60 + 26 lb per acre were applied on native grass sites during three successive years at seven, locations in Western Canada. Single applications of the N fertilizer resulted in 3- or 4-year total yield increases of 300 to 600 lb per acre at six locations. At Summerland the 3-year increase was nearly 1400 lb. Phosphorus fertilizer by itself provided very little yield increase. N + P gave yield increases that were only slightly better than those from N alone.Residual responses to fertilizer were important, especially in the 12- to 16-in. rainfall locations. Only about one-third of the total yield increase occurred in the first year, with the remainder coming in the subsequent seasons.Weeds, where present, showed a marked response to fertilizer N in the first season; in subsequent years the response largely disappeared.

scholarly journals Seleção de genótipos de batata-doce quanto à eficiência ao uso do fósforo em solos da região de cerrado

2013 ◽  
Vol 4 (4) ◽  
pp. 356-364
Author(s):  
Luziano Lopes Da Silva ◽  
Márcio Antônio Da Silveira ◽  
Rodrigo Ribeiro Fidelis ◽  
Rodrigo de Castro Tavares ◽  
Valéria Gomes Momenté ◽  
...  
Keyword(s):  
Experimental Design ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Tuberous Root ◽  
Phosphorus Fertilization ◽  
Germplasm Bank ◽  
Randomized Block Design ◽  
The Family ◽  
Selection Of

The sweet potato (Ipomoea batatas (l.) Lam.) Lam) is a plant that produces tuberous root belonging to the family convolvulácea explored in practically all states of Brazil. The objective of this work was to select genotypes of the sweet potato as the efficiency of phosphorus use in cerrado soils with high and low availability of this nutrient. Were evaluated nine genotypes of sweet potato coming from the germplasm bank from the Federal University of the Tocantins, Brazil. The experimental design was in randomized block design with three replications being nine genotypes grown in two environments with low and high phosphorus availability, using doses of phosphorus fertilization from 20 and 120 kg ha-1 P2O5, applied at planting. To select genotypes suitable for environments proposed was used methodology for selection of the efficient use and response to phosphorus fertilization (efficiency and response). Genotype Amanda was classified as efficient and responsive, Barbara, Julia, Marcela and Carolina Vitoria as efficient, but not responsive and Livia, Duda, Ana Clara and Beatriz were classified as non-efficient, responsive but the absorption and utilization of phosphorus.

scholarly journals Yield and soil insect resistance in sweet potato clones

2019 ◽  
Vol 35 (6) ◽  
Author(s):  
Daiane da Silva Nóbrega ◽  
José Ricardo Peixoto ◽  
Michelle Souza Vilela ◽  
Anne Kelly da Silva Nóbrega ◽  
Elaine Caetano Santos ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Starch Content ◽  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Soil Conditions ◽  
Root Yield ◽  
Pests And Diseases ◽  
Soil Insects

Sweet potato (Ipomoea batatas) is a rustic horticultural crop with high production potential. However, the crop is susceptible to many pests and diseases. The objective of this study was to evaluate 10 genotypes of sweet potato regarding their yield and resistance to soil insects, under Brazilian cerrado soil conditions. Genotypes were selected from the Sweet Potato Germplasm Bank of Embrapa Hortaliças. The experiment was conducted at Água Limpa Farm, belonging to University of Brasilia (UnB), and consisted of a randomized block design, with 10 treatments (genotypes), 10 plants per plot, and four replications. The following traits were analyzed: number of perforations per root, incidence of roots injured by insects, plant resistance degree, root shape, total and marketable root yields, root peel color, root pulp color, pulp total soluble solids, pulp titratable acidity, pulp TSS/TA ratio, pulp moisture, and pulp starch yield. Genotype CNPH 53 (26.78 t ha-1) presented total root yield greater than the commercial variety Brazlândia Rosada (17.54 t ha-1). Genotype Santa Sofia (11.77 t ha-1) and Brazlândia (13.5 t ha-1) had similar marketable root yields. CNPH 53 showed the best agronomic performance, exhibiting moderate susceptibility to soil insects and root shape meeting the market standards. It also had low pulp TA (2.53%); high pulp TSS (12.25 °Brix) and pulp TSS/AT ratio (4.24); pulp moisture content close to 70%; and the highest pulp starch content (11.98%). The traits number of perforations per root, root shape, and pulp TA presented heritability values close to 70%. Marketable root yield, pulp moisture, and pulp starch content demonstrated heritability values greater than 90% and CVG/CVE greater than 1.

EFFECT OF POTASSIUM FERTILIZATION ON COTTON PRODUCTION UNDER EGYPTIAN SOIL CONDITIONS

2008 ◽  
Vol 33 (1) ◽  
pp. 785-792
Author(s):  
E.E.E. Kafaga ◽  
Sh. Z. Saleh ◽  
Yosreia S. Abd El-Shafy ◽  
L.W. Antoun
Keyword(s):  
Soil Conditions ◽  
Cotton Production ◽  
Potassium Fertilization ◽  
Egyptian Soil

scholarly journals Cell Structure, Water Status and Starch Properties in Tuberous Root Tissue in Relation to the Texture of Steamed Sweetpotato (Ipomoea batatas (L.) Lam)

2010 ◽  
Vol 79 (3) ◽  
pp. 284-295 ◽  
Author(s):  
Yoshiyuki Nakamura ◽  
Toshikazu Kuranouchi ◽  
Akiko Ohara-Takada ◽  
Nobuaki Ishida ◽  
Ichie Koda ◽  
...  
Keyword(s):  
Ipomoea Batatas ◽  
Water Status ◽  
Cell Structure ◽  
Tuberous Root ◽  
Root Tissue ◽  
Starch Properties ◽  
Structure Water

Impact of salicylic acid and nitric oxide on improving growth and nutrients uptake of rose in alkaline soil conditions

2019 ◽  
Vol 43 (5) ◽  
pp. 667-681
Author(s):  
Mehri Moazam Babasheikhali ◽  
Zohreh Jabbarzadeh ◽  
Jafar Amiri ◽  
Mohsen Barin
Keyword(s):  
Nitric Oxide ◽  
Salicylic Acid ◽  
Soil Conditions ◽  
Alkaline Soil ◽  
Nutrients Uptake

Differential Tolerance of Sweet Potato (Ipomoea batatas) Clones to Metribuzin

1993 ◽  
Vol 7 (2) ◽  
pp. 349-354 ◽  
Author(s):  
Carl E. Motsenbocker ◽  
Thomas J. Monaco
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Total Yield ◽  
Crop Injury

Sweet potato clones were evaluated for metribuzin tolerance in field and greenhouse studies. ‘Tinian’ was the most tolerant and ‘SC-1149-19’ and ‘J-2’ were the most susceptible clones. ‘Jewel’, a clone widely grown commercially, was sensitive to metribuzin in the field and greenhouse. ‘Sumor’ and ‘White Triumph’ exhibited intermediate metribuzin tolerance. All metribuzin application-by-rate treatments reduced plant stands, caused season-long crop injury, and reduced yields. Metribuzin applied 3 wk posttransplant at 1.1 kg ha−1did not reduce total yield of Tinian. Total yield of all the clones except Tinian were reduced by metribuzin regardless of timing or rate.

scholarly journals Molecular characterization of genes encoding isoamylase-type debranching enzyme in tuberous root of sweet potato, Ipomoea batatas (L.) Lam.

2016 ◽  
Vol 33 (5) ◽  
pp. 351-359
Author(s):  
Moe Nabemoto ◽  
Riho Watanabe ◽  
Mizuho Ohsu ◽  
Kaname Sato ◽  
Motoyasu Otani ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Tuberous Root ◽  
Debranching Enzyme ◽  
Genes Encoding

Yield and Yield Components of Six Sweet Potato (Ipomoea batatas) Cultivars II. Variability and Possible Sources of Variation

1975 ◽  
Vol 11 (1) ◽  
pp. 49-58 ◽  
Author(s):  
S. B. Lowe ◽  
L. A. Wilson
Keyword(s):  
Sweet Potato ◽  
Yield Components ◽  
Ipomoea Batatas ◽  
Total Yield ◽  
Yield Variability ◽  
Tuber Development ◽  
Marketable Yield ◽  
Yield Variation ◽  
Planting Material ◽  
Sources Of Variation

SUMMARYVariabilities in total yield, marketable yield and components of yield (tuber numbers and mean tuber weights) were studied in six sweet potato cultivars over two seasons, in crops harvested at two dates. Yield variability was high, particularly in marketable tubers, and was related to either or both components of yield. High-yielding cultivars had lower variabilities and the commercial cultivar 049 the lowest. The contribution of yield components to variability in total yield was evaluated and sources of yield variation were attributed to planting material, tuber development and season.

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