scholarly journals Effect of Mulching and Methods of Irrigation on Okra (Hibiscus esculentus L. Moench)

2020 ◽  
Vol 9 (2) ◽  
pp. 759-765 ◽  
Author(s):  
Vinita Parte ◽  
Pratibha Dagore ◽  
Anjana Kujur ◽  
Urvashi Markam
Keyword(s):  
Hibiscus Esculentus

scholarly journals Thrips (Thysanoptera) of vegetable crops (okro, spinach, garden egg and pumpkin) grown in Southeastern Nigeria

2011 ◽  
Vol 39 (No. 4) ◽  
pp. 132-138 ◽  
Author(s):  
E.T. Oparaocha ◽  
R.N. Okigbo
Keyword(s):  
Lower Number ◽  
Frequency Of Occurrence ◽  
Vegetable Crops ◽  
Southeastern Nigeria ◽  
Amaranthus Hybridus ◽  
Solanum Incanum ◽  
Telfairia Occidentalis ◽  
Port Harcourt ◽  
Microscopic Studies ◽  
Hibiscus Esculentus

Eight vegetable crops were sampled at five localities in Southeastern Nigeria and were found to harbour one or more species of thrips. The crops were Amaranthus hybridus, A. spinosus, Basella rubra, Solanum incanum, S. melongena, Hibiscus esculentus, Telfairia occidentalis and a species of Solanum. The sampled localities, with the frequency of occurrence of thrips, were Umuahia (29.6%), Owerri (28.5%), Port Harcourt (25.7%), Calabar (18.7%) and Enugu (6.0%). The studies revealed that crops with very heavy infloresences, e.g. Amaranthus hybridus, had a higher number of thrips (40%) per flower/leaf, while simple flowered crops like Telfairia occidentalis could only harbour a far lower number of thrips per flower/leaf. This showed a preference of these thrips for plants with heavy inflorescences which provided them with more protection, especially their larvae. Taxonomic/microscopic studies identified three species of thrips: Haplothrips gowdeyi that attacked 63% of all the sampled crops, Frankliniella schultzei was hosted by 50% of the crops, and Megalurothrips ventralis also preyed on 50% of the plant samples.  

scholarly journals Phytotoxicity of Chromium on Germination, Growth and Biochemical Attributes of <i>Hibiscus esculentus</i> L.

2013 ◽  
Vol 04 (12) ◽  
pp. 2431-2439 ◽  
Author(s):  
Hira Amin ◽  
Basir Ahmed Arain ◽  
Farah Amin ◽  
Muhammad Ali Surhio
Keyword(s):  
Hibiscus Esculentus

scholarly journals Concentration of Trace Metals (Lead, Iron, Copper and Zinc) In Crops Harvested in Some Oil Prospecting Locations in River State, Nigeria

2005 ◽  
Vol 5 (9) ◽  
pp. 01-21
Author(s):  
Alexander Hart ◽  
◽  
Oboh CA ◽  
Barimalaa IS ◽  
TG Sokari
Keyword(s):  
Trace Metals ◽  
State University ◽  
Industrial Base ◽  
Iron Copper ◽  
Copper And Zinc ◽  
Port Harcourt ◽  
Zinc Concentrations ◽  
Hibiscus Esculentus ◽  
High Level ◽  
Rivers State

Concentrations of the trace metals lead, iron, copper and zinc were estimated in crops harvested in some oil prospecting locations in Rivers State, Nigeria. The locations were; Agbada-Aluu (AA), Ebocha (EB), Idu Ekpeye (IE), Obagi (OB) and Trans Amadi Layout (TA), with the Teaching and Research Farm of Rivers State University of Science and Technology, Port Harcourt as control. Crops investigated were cassava (Manihot esculenta), cocoyam (Colocasia esculenta), okra (Hibiscus esculentus), pumpkin leaves (Telfairia occidentalis) and waterleaf (Talinum traingulare). Results of the mean lead concentrations were from 1.1µg/g in cocoyam to 9.1 µg/g in okro, showing higher trends in the industrialized areas. While cocoyam had the lowest lead concentration, the concentration rest of the crops did not differ significantly from one another. Crops from locations TA, OB, IE and EB had significantly higher concentrations of lead, although IE, AA and TF were not significantly different from one another. Mean concentrations of iron were between 40 µg/g in cassava from TF, and 651 µg/g in pumpkin leaves from TA - the industrial base of Rivers State - reflecting a high level of pollution from the various industries in that location. Differences in concentration of iron in crops showed pumpkin leaves to have the highest level of iron, followed by the other green vegetables – waterleaf and okra - although no significant differences occurred between okra, cocoyam and cassava. Copper concentrations were between 4.4 µg/g in cocoyam from locations TF and 23 µg/g in pumpkin leaves from TA. Pumpkin leaves had the highest concentrations of copper, followed by okra, then waterleaf, with cocoyam and cassava having the least significant levels. Zinc concentrations in crops were between 29 µg/g in cocoyam from TF to 240 µg/g in pumpkin leaves from EB. Pumpkin leaves and okra contained the highest levels of the metal, followed by waterleaf, then cassava and finally cocoyam. In terms of location, TA, OB and EB had the highest concentrations in crops, the least occurring in TF and AA. These results reflect higher concentrations of metals in crops from the industrialized locations, with the green vegetables, particularly pumpkin leaves, having the highest uptake, while cocoyam invariably had the least. These findings give cause for concern, particularly as heavy metals are bio-accumulative in the system and portend a serious health risk to man and animals.

Anti-amylolytic activity of fresh and cooked okra (Hibiscus esculentus L.) pod extract

2014 ◽  
Vol 3 (4) ◽  
pp. 373-377 ◽  
Author(s):  
M.R. Karim ◽  
M.S. Islam ◽  
Shaheen M. Sarkar ◽  
A.C. Murugan ◽  
Essam A. Makky ◽  
...  
Keyword(s):  
Amylolytic Activity ◽  
Hibiscus Esculentus

Fatty acid changes in Hibiscus esculentus tissues during growth

1982 ◽  
Vol 21 (3) ◽  
pp. 565-568 ◽  
Author(s):  
N. Gopalakrishnan ◽  
T.N.B. Kaimal ◽  
G. Lakshminarayana
Keyword(s):  
Fatty Acid ◽  
Hibiscus Esculentus

On the Effects produced by the Attacks of the Pink Bollworm on the Yield of Cotton Seed and Lint in Egypt

1919 ◽  
Vol 9 (4) ◽  
pp. 279-324 ◽  
Author(s):  
L. H. Gough
Keyword(s):  
Pink Bollworm ◽  
Hibiscus Cannabinus ◽  
Food Plants ◽  
Thespesia Populnea ◽  
History Of ◽  
Major Pest ◽  
Hibiscus Esculentus ◽  
Important Position ◽  
Gipsy Moth ◽  
A Minor

The history of but few insects can be compared with that ofPectinophora(Geleckia)gossypiella, which, having started as a minor pest in its native country and having been transported by human agency to a new country, has there suddenly leapt to the most important position as a major pest of the crop it attacks. In this respect it may be placed with thePhylloxeraand the gipsy moth.Although the chief object of this paper is to consider certain aspects of the damage done by the pink bollworm to the cotton crop, the following short summary of the established facts concerning the life-history of the insect may be useful to readers not familiar with its habits.Food-Plants. The pink bollworm feeds on cotton (Gossypium, various species), okra (Hibiscus esculentus; Arabic :bamia; Hindustani :bhindi), Deccan hemp (Hibiscus cannabinus; Arabic :til), hollyhock (Althaea rosea), mallow (Malvasp., probablysilvestris),Thespesia populnea(fideFullaway ; this record is considered doubtful by Busck), andAbutilonsp. (Arabic :hanbuk;fideKing).It will be noticed that all these plants belong to the Malvaceae. The record for pomegranates given by Dudgeon and Gough is without doubt due to error.Of all these food-plants cotton is preferred. The larvae attack the stems (feeding in the cambium and boring a tunnel which encircles the stem), flowers, flower-buds, bolls and seeds.

Alternaria zinniae. [Descriptions of Fungi and Bacteria].

1991 ◽  
Author(s):  
J. C. David
Keyword(s):  
South Africa ◽  
North America ◽  
South Dakota ◽  
Sierra Leone ◽  
Geographical Distribution ◽  
Wind Dispersal ◽  
Damping Off ◽  
Airborne Conidia ◽  
Hibiscus Esculentus ◽  
Sphaeranthus Indicus

Abstract A description is provided for Alternaria zinniae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Ageratum, Aster, Bidens, Calendula, Callistephus, Chrysanthemum, Coreopsis, Cosmos, Dahlia, Gaillardia, Galinsoga, Gerbera, Helianthus, Notonia, Parthenium, Sphaeranthus indicus, Tagetes, Tithonia, Volutarella, Xanthium, Zinnia. Also recorded are a number of non-compositae hosts such as bean (50, 3295), rape (43, 1212b), Clarkia, Hibiscus esculentus (66. 4729), pawpaws (66. 4729) and seeds of tobacco (64, 1748) but these reports should be regarded with some doubt. Simmons (1982) also reports other hosts like Gentiana, Papaver and Reseda. DISEASE: Leaf spot of Zinnia. The fungus attacks the leaves, stems of its host and can cause damping-off of seedlings where both the root and the stems of the plant may be affected. In older plants the fungus attacks the older leaves and then spreads to the younger leaves, and when the attack is severe the spots may become confluent. GEOGRAPHICAL DISTRIBUTION: Africa: Egypt, Ethiopia, Ghana, Kenya, Libya, Malawi, Mauritius, Sierra Leone, South Africa, Sudan, Tanzania, Uganda, Zambia, Zimbabwe. Asia: Brunei, China (Liaoning). India, Indonesia (Borneo), Korea, Nepal, Pakistan. Australasia & Oceania: Australia. Europe: Cyprus. Denmark, France, Germany, Hungary, Italy, Norway, Poland, Portugal, Romania, The Netherlands. Central & North America: Bermuda, Canada, Jamaica, USA (Hawaii, Illinois, South Dakota). TRANSMISSION: On seeds by wind dispersal of airborne conidia.

Sphaerotheca fuliginea. [Descriptions of Fungi and Bacteria].

1967 ◽  
Author(s):  
J. N. Kapoor
Keyword(s):  
Glycine Max ◽  
Powdery Mildew ◽  
Geographical Distribution ◽  
World Wide ◽  
Solanum Melongena ◽  
Sphaerotheca Fuliginea ◽  
Hibiscus Esculentus

Abstract A description is provided for Sphaerotheca fuliginea. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On numerous genera of Compositae, Cucurbitaceae and Scrophulariaceae. Also on Helianthemum spp. (Cistaceae); Arabis spp., Braya spp., Capscila spp., Cardaminc spp., Draba spp., Parrya spp. (Cruciferae); Dipsacus spp. (Dipsacaceae); Astragalu, spp., Glycine max, Phascolus spp., Rhynchosia spp., Vigna spp.(Leguminosae); Plantago spp. (Plantaginaceae); Hibiscus esculentus (Malvaceae); Hyoscyarnus niger, Mandragora officinalis, Petunia spp., Physalis spp., Solanum melongena (Solanaceae). (Blumer, 1967; Hirata, 1966). DISEASE: Powdery mildew of cucurbits. GEOGRAPHICAL DISTRIBUTION: World-wide. TRANSMISSION: Not known.

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