Effects of Transplanting and Harvesting Dates on Characteristics of Yield and Quality of Storage Roots of Sweetpotato (Ipomoea batatas (L.) Lam)

2016 ◽  
Vol 28 (2) ◽  
pp. 205-214
Author(s):  
Hyeong-Un Lee ◽  
◽  
Joon-Seol Lee ◽  
Joon-Wook Yang ◽  
Seon-Kyeong Han ◽  
...  
Keyword(s):  
Ipomoea Batatas ◽  
Storage Roots ◽  
Yield And Quality

scholarly journals Transcriptomic and Metabolic Profiling of High-Temperature Treated Storage Roots Reveals the Mechanism of Saccharification in Sweetpotato (Ipomoea batatas (L.) Lam.)

2021 ◽  
Vol 22 (13) ◽  
pp. 6641
Author(s):  
Chen Li ◽  
Meng Kou ◽  
Mohamed Hamed Arisha ◽  
Wei Tang ◽  
Meng Ma ◽  
...  
Keyword(s):  
High Temperature ◽  
Metabolic Pathways ◽  
Transcriptome Sequencing ◽  
Ipomoea Batatas ◽  
Sequencing Analysis ◽  
Storage Roots ◽  
Metabolic Analysis ◽  
Cooking Process

The saccharification of sweetpotato storage roots is a common phenomenon in the cooking process, which determines the edible quality of table use sweetpotato. In the present study, two high saccharified sweetpotato cultivars (Y25, Z13) and one low saccharified cultivar (X27) in two growth periods (S1, S2) were selected as materials to reveal the molecular mechanism of sweetpotato saccharification treated at high temperature by transcriptome sequencing and non-targeted metabolome determination. The results showed that the comprehensive taste score, sweetness, maltose content and starch change of X27 after steaming were significantly lower than those of Y25 and Z13. Through transcriptome sequencing analysis, 1918 and 1520 differentially expressed genes were obtained in the two periods of S1 and S2, respectively. Some saccharification-related transcription factors including MYB families, WRKY families, bHLH families and inhibitors were screened. Metabolic analysis showed that 162 differentially abundant metabolites related to carbohydrate metabolism were significantly enriched in starch and sucrose capitalization pathways. The correlation analysis between transcriptome and metabolome confirmed that the starch and sucrose metabolic pathways were significantly co-annotated, indicating that it is a vitally important metabolic pathway in the process of sweetpotato saccharification. The data obtained in this study can provide valuable resources for follow-up research on sweetpotato saccharification and will provide new insights and theoretical basis for table use sweetpotato breeding in the future.

scholarly journals Effects of Common Viruses on Yield and Quality of Beauregard Sweetpotato in Louisiana

Plant Disease ◽  
2006 ◽  
Vol 90 (1) ◽  
pp. 83-88 ◽  
Author(s):  
C. A. Clark ◽  
M. W. Hoy
Keyword(s):  
Sweet Potato ◽  
The United States ◽  
Yield Reduction ◽  
Storage Roots ◽  
Potato Leaf ◽  
Yield And Quality ◽  
Sweet Potato Virus ◽  
Unknown Mixture ◽  
Field Plots

During cycles of vegetative propagation, sweetpotato accumulates viruses that are thought to contribute to decline in yield and quality of cultivars, but the effects of specific viruses, many of which have been described only recently, are unknown. Field plots planted with graft-inoculated plants of a virus-tested (VT) mericlone of cv. Beauregard were used to assess the effects of three common potyviruses, Sweet potato feathery mottle virus (SPFMV), Sweet potato virus G (SPVG), and Ipomoea vein mosaic virus (IVMV); and a begomovirus, Sweet potato leaf curlvirus (SPLCV), compared with natural inoculum introduced by grafting plants from farmers' stock. Single infections with SPFMV, SPVG, or IVMV did not significantly affect yield, whereas mixed infections with SPFMV + SPVG or SPFMV + SPVG + IVMV resulted in mean yields 14% less than the VT controls. Infection with SPLCV resulted in mean yields 26% less than the VT controls, despite not causing symptoms on the foliage. However, grafting with farmers' plants infected with an unknown mixture of pathogens resulted in mean yields 31 to 44% less than the VT controls. Infection with potyviruses resulted in storage roots with tan periderm and infection with SPLCV induced darker periderm than the rosy VT controls. Infection with the viruses known to occur commonly in the United States did not reproduce the magnitude of yield reduction that has been observed with naturally infected plants.

scholarly journals BORON APPLICATION TIMING AND RATE ON BLISTER-LIKE SYMPTOMS IN `HERNANDEZ'

HortScience ◽  
1996 ◽  
Vol 31 (5) ◽  
pp. 760g-761
Author(s):  
Jonathan R. Schultheis ◽  
Dennis E. Adams
Keyword(s):  
Foliar Application ◽  
Block Design ◽  
Storage Roots ◽  
Fresh Market ◽  
Application Timing ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Good Yielding ◽  
And Storage

Boron has been used to overcome the disorder blister in varieties such as `Jewel'. `Hernandez' is an attractive, good-yielding variety with uniform shape that will consistently pack out at 80% to 90%. Over time in storage, however, roots develop blister-like symptoms, rendering roots unmarketable for fresh market. Our objective was to evaluate the effect of different B rates and application times on the yield and quality of `Hernandez' roots. Rates were varied up to 2.24 kg actual B/ha 6 days after planting, while various soil and foliar application times (6, 34, and 69 days after planting) were evaluated at 1.12 kg·ha–1. In 1994, three row plots were arranged in a randomized complete block design and replicated four times. Planting was on a deep sand to maximize the effect of the B carrier Solubor. Roots were harvested, graded, and weighed 120 days after planting and storage roots evaluated for blister-like symptoms in Mar. 1995. No significant differences in yield were attributed to B rate or application method. Blister-like symptoms were more severe when no B was applied; however, application of B did not eliminate symptoms, as most roots had the blister-like appearance. Boron application did not solve the problem, but symptoms were less apparent when some B was applied.

scholarly journals Influence of organic, inorganic and organo-mineral fertilizers on yield and quality of sweet potato (Ipomoea batatas)

2020 ◽  
Vol 24 (1) ◽  
pp. 111 ◽  
Author(s):  
I Kareem ◽  
E.A. Akinrinde ◽  
Y Oladosu ◽  
E.K. Eifediyi ◽  
S.Y. Abdulmaliq ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Mineral Fertilizers ◽  
Yield And Quality

scholarly journals Effect of Integrated Nutrient Management Practices on Yield and Quality of Sweet Potato [Ipomoea batatas (L.) Lam] cv. Kanjangad

2021 ◽  
pp. 73-83
Author(s):  
P. B. Shabitha ◽  
R. Rajeswari
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Management Practices ◽  
Nutrient Management ◽  
Poultry Manure ◽  
Seaweed Extract ◽  
Integrated Nutrient Management ◽  
Yield And Quality ◽  
Half Dose

The investigation was carried out to study the “Effect of integrated nutrient management practices on yield and quality of sweet potato [Ipomoea batatas (L.) Lam] cv. Kanjangad” at Elavuvilai village, Kanyakumari District, Tamil Nadu during Kharif season of 2020. The experiment was laid out in randomized block design with nine treatments replicated thrice. Sweet potato vine cuttings of about 15 cm with 4 nodes were used for the study. The treatments comprised of two levels of recommended dose of fertilizers (RDF - 40:80:120 kg NPK ha-1) viz., 50 and 100% along with FYM, poultry manure, gibberellic acid and seaweed extract. The treatments comprised of half dose of nitrogen and full doses of phosphorous and potassium were applied as basal and remaining half dose of nitrogen was applied at 60 days after planting. Organic inputs viz., FYM (25 t, 12.5 t ha-1), poultry manure (5 t, 2.5 t ha-1) as were applied as basal application, gibberellic acid (200 ppm) and seaweed extract (2%) were applied as foliar application at 40, 55 and 70 days after planting were also used. The observations were recorded at 180 days after planting. The results indicated that the maximum values for yield parameters viz., number of tubers plant-1 (3.02 g), tuber length (19.02 cm), tuber girth (15.58 cm), tuber weight (138.36 g), tuber dry weight (66.73 g), tuber yield [plant-1 (417.84 g),  plot-1 (12.18 kg), hectare-1 (30.45 t)], whereas quality parameters such as total soluble solid (9.210 Brix) and starch content (12.24%) of tuber, post harvest soil available nutrient (245.00 N; 21.93 P and 278.00 K kg ha-1), maximum net income (Rs. 5,16,050) and B: C ratio (3.23)  were recorded in the plots which received 50% RDF + FYM 12.5 t ha-1 + Poultry manure 2.5 t ha-1 + Seaweed extract 2% (T9). This was followed by (T6) 50% RDF+ FYM 12.5 t ha-1 + Poultry manure 2.5 t ha-1 + GA3 200 ppm.

scholarly journals The assessment of yield and quality traits of sweet potato (Ipomoea batatas L.) genotypes in middle Black Sea region, Turkey

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257703
Author(s):  
Yasin Bedrettin Karan ◽  
Özlem Gültekin Şanli
Keyword(s):  
Sweet Potato ◽  
Black Sea ◽  
Ipomoea Batatas ◽  
Dry Matter ◽  
Quality Traits ◽  
Storage Root ◽  
Root Yield ◽  
Storage Roots ◽  
Yield And Quality ◽  
Second Year

Sweet potato (Ipomoea batatas L.) cultivation in Turkey is concentrated in one province situated in Mediterranean region only, which would not fulfill the domestic needs of the country soon. Therefore, cultivation of the crop in other provinces/climatic regions should be initiated to fulfill the domestic needs. The cultivation in other provinces requires thorough assessment of yield and quality traits of target crop. Therefore, yield and quality characteristics of four sweet potato genotypes (i.e., ‘Hatay Kırmızısı’, ‘Hatay Yerlisi’, ‘Havuc’ and ‘Kalem’) were assessed in the current study in Kazova and Niksar counties of Tokat province of the country having middle Black Sea climate in field experiments during 2018 and 2019. The cuttings of the genotypes were planted in Niksar during the second fortnight of April and first week of May in Kazova. The planting density was kept 90 × 45 cm. Data relating to number of storage roots, storage root weight, storage root yield per hill and storage root yield per hectare were recorded. Furthermore, quality traits, including dry matter ratio (%), protein ratio (%) and antioxidant ratio (%) of storage roots were also determined. The highest total storage root yield was recorded for ‘Havuc’ genotype during both years and locations, followed by ‘Hatay Yerlisi’ and ‘Hatay Kırmızısı’ genotypes. Overall, storage root yield (60.06 and 62.40 tons ha-1 during first and second year) recorded for the experiment at Niksar was higher than the storage root yield recorded for Kazova experiment (53.50 and 52.84 tons ha-1 during first and second year, respectively). The highest dry matter was produced by ‘Kalem’ and ‘Hatay Yerlisi’ genotypes during both years and at both locations, followed by ‘Hatay Kırmızısı’ and ‘Havuc’ genotypes. The storage roots of the tested genotypes accumulated higher dry matter at Kazova during both years. The highest protein content was obtained from the ‘Kalem’ genotype, and the protein contents of the ‘Hatay Yerlisi’ and ‘Hatay Kırmızısı’ genotypes were close to the ‘Kalem’ genotype. The results indicated that tested genotypes can successfully be cultivated in middle Black Sea climate. Therefore, production of sweet potato can be initiated in the future to meet the domestic needs for sweet potato in the country.

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