Screening of Fe-Deficiency Tolerance in Okra (<i>Abelmoschus esculentus</i> L.) Through Hydroponic Culture

Screening for Fe deficiency tolerance in okra (Abelmoschus esculentus) Bangladeshi genotypes (‘BARI-1’, ‘Local variety’, ‘Orca Onamica’, and ‘Prince’) were studied based on different morphological and physiological parameters. Number of leaves, shoot height and weight were significantly reduced in ‘Orca Onamica’ and ‘Prince’, whereas ‘BARI-1’ and ‘Local variety’ did not show prominent decrease in the aforesaid growth parameters under Fe deficiency. Again, ‘Orca Onamica’ and ‘Prince’ showed significantly decreased root length and root biomass under Fe deficiency. In contrast, these parameters were unchangeable in ‘BARI’-1 and ‘Local variety’ in Fe shortage compared to controls. Furthermore, Fe deficiency caused severe decrease in chlorophyll (a and b) and Fe concentrations in leaves of ‘Orca Onamica’ and ‘Prince’ grown on hydroponic culture. In contrast, chlorophyll (a and b) and Fe concentrations were not significantly decreased in ‘BARI-1’ and ‘Local variety’ due to Fe deficiency. Based on these findings, tolerance to Fe deficiency in these okra cultivars can be categorized as: tolerant (‘BARI-1’ and ‘Local’), and sensitive (‘Orca Onamica’ and ‘Prince’). The ranking can be applied in plant breeding program and may have great advantage over conventional methods. This study also demonstrates the effectiveness of hydroponic culture as an efficient method to screen Fe-efficient crop plants.

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Mechanisms associated with differential tolerance to Fe deficiency in okra (Abelmoschus esculentus Moench)

Environmental and Experimental Botany ◽

10.1016/j.envexpbot.2014.11.011 ◽

2015 ◽

Vol 112 ◽

pp. 16-26 ◽

Cited By ~ 35

Author(s):

Ahmad H. Kabir ◽

Mohammad M. Rahman ◽

Syed A. Haider ◽

Nishit K. Paul

Keyword(s):

Abelmoschus Esculentus ◽

Fe Deficiency

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Effects of hydroponic culture system and NaCl on interactions between common bean lines and native rhizobia from Tunisian soils

Agronomie ◽

10.1051/agro:2001150 ◽

2001 ◽

Vol 21 (6-7) ◽

pp. 601-605 ◽

Cited By ~ 17

Author(s):

Moez Jebara ◽

Jean-Jacques Drevon ◽

Mohamed Elarbi Aouani

Keyword(s):

Common Bean ◽

Culture System ◽

Hydroponic Culture

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Growth and yield of okra (Abelmoschus esculentus (L.) Moench) grown in the marginal upland area of Sta. Rita, Samar as influenced by different planting densities and mulching materials

Annals of Tropical Research ◽

10.32945/atr39sa4.2017 ◽

2017 ◽

pp. 44-54

Author(s):

Zenaida Gonzaga ◽

Warren Obeda ◽

Ana Linda Gorme ◽

Jessie Rom ◽

Oscar Abrantes ◽

...

Keyword(s):

Bare Soil ◽

Abelmoschus Esculentus ◽

Growth And Yield ◽

Planting Density ◽

Rice Hull ◽

Plastic Mulch ◽

Lady’S Finger ◽

Materials Used ◽

Set Up ◽

A Minor

Okra or Lady’s finger, botanically known as Abelmoschus esculentus (L.) Moench, is a tropical and sub-tropical indigenous vegetable crop commonly grown for its fibrous, slimy, and nutritious fruits and consumed by all classes of population. It has also several medicinal and economic values. Despite its many uses and potential value, its importance is under estimated, under-utilized, and considered a minor crop and little attention was paid to its improvement. The study was conducted to evaluate the effects of different planting densities and mulching materials on the growth and yield of okra grown in slightly sloping area in the marginal uplands in Sta. Rita, Samar, Philippines. A split-plot experiment was set up with planting density as main plot and the different mulching materials as the sub-plot which were: unmulched or bare soil, rice straw, rice hull, hagonoy and plastic mulch. Planting density did not significantly affect the growth and yield of okra. Regardless ofthe mulching materials used, mulched plants were taller and yielded higher compared to unmulched plants. Moreover, the use of plastic mulch resulted to the highest total fruit yield. The results indicate the potential of mulching in increasing yield and thus profitability of okra production under marginal upland conditions.

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Effect of zinc sulphate and biofertilizers on yield attributes and yield of okra [Abelmoschus esculentus (L.) Moench]

Research on Crops ◽

10.31830/2348-7542.2019.110 ◽

2019 ◽

Vol 20 (4) ◽

Keyword(s):

Zinc Sulphate ◽

Abelmoschus Esculentus ◽

Yield Attributes

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Efektivitas Serbuk Buah Okra (Abelmoschus esculentus) sebagai Larvasida Aedes aegypti

Jurnal Kedokteran Meditek ◽

10.36452/jkdoktmeditek.v24i68.1700 ◽

2019 ◽

Author(s):

Monica Puspa Sari ◽

Henricho Himawan ◽

Rina Priastini Susilowati

Keyword(s):

Aedes Aegypti ◽

Abelmoschus Esculentus

Temephos 1% atau lebih dikenal dengan abate dulu efektif untuk penanganan larva nyamuk, khususnya larva Aedes aegypti yang merupakan vektor utama dari demam berdarah. Akan tetapi penggunaan yang terus menerus dan tidak terkontrol dapat menyebabkan terjadinya resistensi temephos. Tujuan dari penelitian ini adalah untuk mencari larvasida alami yang dapat digunakan sebagai alternatif atau pengganti temephos, salah satunya adalah buah okra. Penelitian ini merupakan penelitian eksperimental, dengan lima kali pengulangan dan konsentrasi masing-masing 1%,2%,4%,8%, dan 16%, kontrol negatif, dan temephos 1% sebagai kontrol positif, dan dilakukan pengamatan selama 24 jam untuk melihat jumlah kematian larva. Hasil percobaan serbuk buah okra dengan berbagai konsentrasi terhadap larva instar III Aedes aegypti menunjukkan hasil nilai LC50 sebesar 4,143% dan LC90 sebesar 12,778%. Serbuk buah okra dapat bertindak sebagai racun dan bersifat sebagai racun kontak bagi larva Aedes aegypti. Dapat disimpulkan bahwa dosis efektif serbuk buah okra untuk mematikan larva Aedes aegypti adalah 12,778 %. Kata kunci: Aedes aegypty, temephos 1%, larvasida, serbuk buah okra

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Protected Culture Systems for Strawberry Production

HortScience ◽

10.21273/hortsci.33.3.459d ◽

1998 ◽

Vol 33 (3) ◽

pp. 459d-459

Author(s):

Fumiomi Takeda ◽

Paul R. Adler ◽

D. Michael Glenn

Keyword(s):

Light Intensity ◽

Fruit Size ◽

Fruit Production ◽

Hydroponic Culture ◽

Production Cycle ◽

Soilless Culture ◽

Labor Costs ◽

Culture Systems ◽

Nutrient Film Technique ◽

Plant Densities

Strawberry plants (cvs. Camarosa, Chandler, Sweet Charlie, Primetime, Jewel, and Tribute) were grown in soilless culture systems in a greenhouse from October to May. Fresh-dug and runner-tip Aplug® plants were transplanted into two systems: vertically stacked pots (24 plants/m2) containing perlite and horizontal nutrient film technique troughs (13 plants/m2). Plants were fertigated continuously with recirculating nutrient solution. In a 7-month production cycle, the plug plants bloomed earlier and produced more fruit during the first month of harvest (December) than the fresh-dug plants. Higher yields from plug plants were a result of more fruit numbers and not larger fruit size. Fruit production averaged 6.0 and 3.5 kg/m2 in the trough and pot systems, respectively. The vertical growing system allows greater plant densities, but light intensity reaching the plants in the lower sections of the tower can be less than 20% of levels measured at the top. Establishment costs of protected culture systems are higher, but production is earlier and labor costs are typically reduced. Greenhouse hydroponic culture systems could extend the winter strawberry production to more northern locations.

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