scholarly journals Developmental and reproductive response of Brachmia macroscopa (Lepidoptera: Gelechiidae) to three host plants

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Li Ma ◽  
Ni Li ◽  
Xing Wang ◽  
Yan Liu ◽  
Ming-Zhu Su ◽  
...  
Keyword(s):  
Life Table ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Host Plants ◽  
Morning Glory ◽  
Reproduction Rate ◽  
Water Spinach ◽  
Potato Leaf ◽  
Reproductive Response ◽  
Net Reproduction

AbstractThe sweet potato leaf folder, Brachmia macroscopa Meyrick (Lepidoptera: Gelechiidae), which is a significant pest of plants in the family Convolvulaceae, is rapidly expanding its range in South China and other subtropical regions. Studies were designed to examine the effects of three different host plants (sweet potato, Ipomoea batatas (L.) Lam.; water spinach, I. aquatica Forsskål; and morning glory, Pharbitis purpurea (L.)) on the development and life table parameters of B. macroscopa under laboratory conditions. We found that the intrinsic rates of increase of B. macroscopa were 0.17 ± 0.004, 0.21 ± 0.005 and 0.16 ± 0.004 on I. batatas, I. aquatica and P. purpurea, respectively. The highest net reproduction rate was 158.06 ± 18.22 per female reared on I. aquatica. The larvae had five instars when reared on I. batatas and I. aquatica, but required six instars on P. purpurea. The mean generation lengths of B. macroscopa ranged from 24.32 ± 0.18 days when reared on I. aquatica to 29.40 ± 0.24 days on P. purpurea. The survival of all stage and fecundity curves was intuitively manipulated using the age-stage-structured and two-sex population life table method, to enable comprehensive descriptions of the stage and population trends of B. macroscopa on the three Convolvulaceae plants. Our results indicated that I. batatas and I. aquatica were more suitable host plants than P. purpurea.

scholarly journals Potential Risk of Consuming Vegetables Planted in Soil with Lead and Cadmium and the Influence on Vegetable Antioxidant Activity

2021 ◽  
Vol 11 (9) ◽  
pp. 3761
Author(s):  
Wen-Lii Huang ◽  
Wei-Hsiang Chang ◽  
Shu-Fen Cheng ◽  
Huai-Yuan Li ◽  
Hsiu-Ling Chen
Keyword(s):  
Sweet Potato ◽  
Contaminated Soils ◽  
Vegetable Consumption ◽  
Accumulation Rate ◽  
Leafy Vegetables ◽  
Water Spinach ◽  
Potato Leaf ◽  
Cd Accumulation ◽  
Lead And Cadmium ◽  
Cd Exposure

Once in soil and water, metals can enter the food chain, and the consumption of contaminated crops can pose a serious risk to human health. This study used pot experiments to evaluate the accumulation of metal elements and their influence on levels of antioxidants in vegetables. The current study clearly demonstrates that metals accumulated in the five vegetables that were planted in the contaminated soils, especially so for water spinach. Cd accumulation of all of the vegetables planted in the contaminated soils was greater Cu. The low accumulation rate that was seen in sweet potato leaf, potato, and tomato indicated their suitability for planting in suspected contaminated soil, such as at farms nearby metal industries, in replacement of high accumulators, such as leafy vegetables. The non-carcinogenic HI of Cd exposure from water spinach and sweet potato were >1, whereas those for Cu were <1. This study suggests that residents may experience health risks due to vegetable consumption, and that children are vulnerable to the adverse effects of heavy metal ingestion.

scholarly journals Effects of Process Parameters on the Color Quality of Anthocyanin-Based Colorants from Conventional and Microwave-Assisted Aqueous Extraction of Sweet Potato (Ipomoea batatas L.) Leaf Varieties

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 103
Author(s):  
Jin Mark D. G. Pagulayan ◽  
Aprille Suzette V. Mendoza ◽  
Fredelyn S. Gascon ◽  
Jan Carlo C. Aningat ◽  
Abigail S. Rustia ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Process Parameters ◽  
Ipomoea Batatas ◽  
Extraction Methods ◽  
Aqueous Extraction ◽  
Potato Leaf ◽  
Microwave Assisted ◽  
Color Quality ◽  
The Impact

The study aimed to evaluate the effects of process parameters (time and raw material weight (RMW)) of conventional (boiling for 10–45 min) and microwave-assisted (2–8 min) aqueous extraction on the color quality (i.e., lightness (L*), chroma (C*), and hue (H°) of anthocyanin –based colorants of red and Inubi sweet potato (Ipomoea batatas L.) leaves. Using response surface methodology, it was found that RMW and boiling time (BT) and microwave time (MT) generally had a significant (p < 0.05) effect on the color quality of the extract from both extraction methods. The effects were found to vary depending on the extraction method and variety of the leaves used. Both extraction methods produced a brown to brick-red extract from the Inubi variety that turned red-violet to pink when acidified. The red sweet potato leaves produced a deep violet colored extract that also turned red-violet when acidified. It is recommended that the anthocyanin content of the extracts be measured to validate the impact of the methods on the active agent. Nevertheless, the outcomes in this study may serve as baseline data for further studies on the potential of sweet potato leaf colorants (SPLC) as a colorant with functional properties.

scholarly journals The antihyperlipidaemic and hepatoprotective effect of Ipomoea batatas L. leaves extract in high-fat diet rats

2021 ◽  
Vol 10 (3) ◽  
pp. 558
Author(s):  
Nurkhasanah Mahfudh ◽  
Nanik Sulistyani ◽  
Muhammad Syakbani ◽  
Athifah Candra Dewi
Keyword(s):  
Sweet Potato ◽  
High Fat Diet ◽  
Ipomoea Batatas ◽  
Lipid Level ◽  
Hepatoprotective Effect ◽  
High Fat ◽  
Potato Leaf ◽  
Serum Glutamic Oxaloacetic Transaminase ◽  
Liver Histopathology ◽  
Purple Sweet Potato

The administration of high-fat diets can increase the body's lipid level and damage the organs. Purple sweet potato leaf (Ipomoea batatas L.) was reported as an antioxidant against free radicals. This study aimed to observe the sweet potato leaf extract's activity on decreasing lipid profile and hepatoprotective effect in high-fat diet fed rats. The treatment animals were divided into five groups, namely normal control, high-fat diet (HFD) control, the treatment group of purple sweet potato leaf extract (SPLE) doses 100 mg/kg BW, 200 mg/kg BW and 400 mg/kg BW which fed with high-fat diet for 14 days and SPLE for 28 days. After treatment was completed, the blood was collected for the detection of cholesterol, triglyceride, serum glutamic oxaloacetic transaminase (SGOT), and serum glutamic pyruvate transaminase (SGPT). After that, the animals were sacrificed, and a liver histopathology observation was conducted using Haematoxylien and Eosin staining. The result showed a significant decrease in cholesterol and triglyceride levels (p≤0.05) compared to the negative group in all treated groups. The SGOT and SGPT enzymes in all of treatment groups were also found to decrease compared with HFD control. The result was confirmed by the histopathological observations. The finding suggested the potency of SPLE for antihyperlipidaemic and hepatoprotective agent.

scholarly journals Detection of Viruses in Sweetpotato from Honduras and Guatemala Augmented by Deep-Sequencing of Small-RNAs

Plant Disease ◽  
2012 ◽  
Vol 96 (10) ◽  
pp. 1430-1437 ◽  
Author(s):  
M. Kashif ◽  
S. Pietilä ◽  
K. Artola ◽  
R. A. C. Jones ◽  
A. K. Tugume ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Virus Strain ◽  
Deep Sequencing ◽  
Ipomoea Batatas ◽  
Plant Viruses ◽  
Virus Infections ◽  
Potato Leaf ◽  
Wide Range ◽  
Virus C ◽  
Small Rna Deep Sequencing

Sweetpotato (Ipomoea batatas) plants become infected with over 30 RNA or DNA viruses in different parts of the world but little is known about viruses infecting sweetpotato crops in Central America, the center of sweetpotato domestication. Small-RNA deep-sequencing (SRDS) analysis was used to detect viruses in sweetpotato in Honduras and Guatemala, which detected Sweet potato feathery mottle virus strain RC and Sweet potato virus C (Potyvirus spp.), Sweet potato chlorotic stunt virus strain WA (SPCSV-WA; Crinivirus sp.), Sweet potato leaf curl Georgia virus (Begomovirus sp.), and Sweet potato pakakuy virus strain B (synonym: Sweet potato badnavirus B). Results were confirmed by polymerase chain reaction and sequencing of the amplicons. Four viruses were detected in a sweetpotato sample from the Galapagos Islands. Serological assays available to two of the five viruses gave results consistent with those obtained by SRDS, and were negative for six additional sweetpotato viruses tested. Plants coinfected with SPCSV-WA and one to two other viruses displayed severe foliar symptoms of epinasty and leaf malformation, purpling, vein banding, or chlorosis. The results suggest that SRDS is suitable for use as a universal, robust, and reliable method for detection of plant viruses, and especially useful for determining virus infections in crops infected with a wide range of unrelated viruses.

scholarly journals PENGARUH JENIS PELARUT TERHADAP AKTIVITAS ANTIOKSIDAN EKSTRAK DAUN UBI JALAR PUTIH (Ipomoea batatas L) MENGGUNAKAN METODE MASERASI

2020 ◽  
Vol 9 (4) ◽  
pp. 438
Author(s):  
Ade Maria Kristin Gultom ◽  
Ni Made Yusa ◽  
Anak Agung Istri Sri Wiadnyani
Keyword(s):  
Antioxidant Activity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Leaf Extract ◽  
Potato Leaf ◽  
Measured Variable ◽  
Obvious Effect ◽  
Randomized Design ◽  
High Antioxidant Activity ◽  
Sweet Potato Leaves

This study aims to determine the effect of solvent types on antioxidant activity of white sweet potato leaf extract (Ipomoea batatas L) and to obtain the most appropriate type of solvent to produce white sweet potato leaf extract with high antioxidant activity. The experimental design uses in this research was Completely Randomized Design (CRD) with the treatment of solvent types methanol 80%, acetone 80%, ethanol 80% and aquades. The treatment was repeated four times so obtain 16 units of the experimental. Data were analysis of variance and followed by Duncan test if the treatment has a significant effect on measured variable. The results showed that, type of solvent had an obvious effect on antioxidant activity of white sweet potato leaves. Methanol was the best solvent in extract white sweet potato leaves with followed by yield was 32.11%, total flavonoids was 226.45 mg QE / g, total tannin was 16.58 mg TAE / g, vitamin C was 119.42 mg AAE / g and antioxidant activity was 82.42%.

scholarly journals Effect of Sweet Potato Leaf Supplementation on Growth and Nutrient Digestibility in Sheep

2020 ◽  
Vol 51 (2) ◽  
pp. 51-57
Author(s):  
A. Melesse ◽  
N. Chalew ◽  
A. Nurfeta
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Nutrient Digestibility ◽  
Potato Leaf ◽  
N Retention ◽  
Natural Grass ◽  
N Utilization ◽  
Grass Hay

AbstractThe effects of feeding dried sweet potato (Ipomoea batatas) leaf (SPL) on growth performance, digestibility, and nitrogen (N) utilization were studied in sheep. Twenty-four rams with initial body weight of 18.5 ± 1.49 kg were randomly allocated to four treatments containing ad libitum natural grass hay alone (T1), hay + 150 g SPL (T2), hay + 300 g SPL (T3) and hay + 450 g SPL (T4) on as fed basis. Results indicated that dry matter (DM), organic matter (OM) and crude protein (CP) in-takes increased (P < 0.001) with increasing levels of SPL. Sheep fed with T2, T3 and T4 diets gained 55.1, 52.6 and 66.5 g per head per day, respectively, while the gain of non-supplemented sheep (9.19 g per head per day) differed (P < 0.05). Digestibility of DM, OM, and CP was higher (P < 0.01) for all supplemented sheep compared with the control. The CP digestibility and N retention were negative in non-supplemented sheep. Urinary N excretion decreased (P < 0.001) with the increasing levels of SPL supplementation. The N retention improved with the increasing levels of SPL and was the highest (P < 0.001) in sheep fed with T4 diet and the lowest in non-supplemented sheep. In conclusion, supplementing a basal diet of natural grass hay with SPL considerably improved the average daily gain, OM and CP digestibility and N retention.

scholarly journals KORELASI KARAKTER ANATOMI DAUN UBI JALAR (Ipomoea batatas L.) KULTIVAR TAHAN DAN TIDAK TAHAN TERHADAP INTENSITAS PENYAKIT KUDIS DAUN

2017 ◽  
Vol 4 (1) ◽  
pp. 21 ◽  
Author(s):  
Ade Winda Pradana ◽  
Siti Samiyarsih ◽  
Juni Safitri Muljowati
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Food Sources ◽  
Sweet Potatoes ◽  
Potato Leaf ◽  
Lower Productivity ◽  
Stomata Size ◽  
Alternative Food Sources ◽  
Inoculation Treatment ◽  
Sweet Potato Leaves

Sweet potato (Ipomoea batatas L.) is one of alternative food sources beside than rice. Sweet potatoes are contains minerals, nutrients, sources of energy, protein, vitamins A and C. Sweet potatoes have lower productivity than rice and cassava. The low productivity of sweet potatoes due to several factors, which one of them is a leaf scab disease caused by pathogens Sphaceloma batatas Saw. The purpose of this study is to determine the character of the anatomy of sweet potato leaf cultivars that resistant and unresistant to the intensity of leaf scab disease, as well as the correlations between the anatomy character of sweet potato leaves with leaf scab disease intensity. The method used in this study is an experimental method with factorial completely randomized design. The first factor is the character of the anatomy of four cultivars sweet potato leaves, Cangkuang and Sukuh cultivars (cultivars resistant), cultivars Cilembu and Beta (unresistant cultivars). The second factor is the inoculation treatment S. batatas Saw. The parameters were observed thickness of cuticle, epidermis, mesophyll, the size (length and width) stomata, density of stomata and trikomata as well as the intensity of the disease were analyzed using analysis of variance (ANOVA). To determine the correlation between the anatomy character leaves with disease intensity using regression correlation analysis. The results showed that Cangkuang cultivar has cuticle, epidermis and mesophyll thickest. Beta cultivars have stomata size of the longest and widest. Cilembu cultivar has the highest density of stomata. Sukuh cultivars has the highest density. The anatomy characters include of a thick cuticle, epidermis, stomata size (length and width), as well as the density of stomata and trikomata correlated with intensity of leaf scab disease.

scholarly journals Biology and life tables of Telenomus remus (Hymenoptera: Scelionidae) as parasitoid of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)

2021 ◽  
Vol 948 (1) ◽  
pp. 012041
Author(s):  
Oktaviani ◽  
N Maryana ◽  
Pudjianto
Keyword(s):  
Life Table ◽  
Spodoptera Frugiperda ◽  
Intrinsic Rate ◽  
Immature Stage ◽  
Intrinsic Rate Of Increase ◽  
Reproduction Rate ◽  
Rate Of Increase ◽  
Net Reproduction ◽  
Lepidoptera Noctuidae ◽  
Telenomus Remus

Abstract Telenomus remus (Hymenoptera: Scelionidae), is an endoparasitoid on eggs of Spodoptera frugiperda (J. E. Smith). S. frugiperda. The information of T. remus as a natural enemy of S. frugiperda is very limited. The research objective is to determine some biological aspects of T. remus, i.e. longevity, fecundity, and life table variables. The demographic statistics using the jackknife method. T. remus is collected from the field identified as T. remus. The immature stage of T. remus reached 8.13 days, the longevity of the male was 10.07 days, while a female was 10.29 days with a fecundity of 75 eggs, and a sex ratio of male and female was 1:2.16. T. remus life table, i.e. gross reproduction rate (GRR) was 74.67 individuals/generation, net reproduction rate (R0) was 45260.60 females/females/generation, with generation period (T) was 8.62 days, and intrinsic rate of increase (r) was 1.24 females/female/day. The success parasitization of T. remus reaches 91%.

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