Tropical Agricultural Research

Equilibrium relations in the coconut sector: an analysis of fresh nut, oil and desiccated coconut market in Sri Lanka for the period 1956-2017

M. G. D. Abeysekara, D. V. P. Prasada, P. M. E. K. Pathiraja

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01 Jan 2020

31(1):1-12

Impact of agricultural land use on soil organic carbon sequestration at sub-catchment scale

D. D. A. E. Hemamali, U. W. A. Vitharana, B. L. W. K. Balasooriya, C. P. Attanayake, W. S. Dandeniya, S. I. Nimanthi

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01 Jan 2020

31(1):13-20

Sustenance of Seed Germination Potential of Two Okra (Abelmoschus esculentus L. Moench) Varieties under Different Environmental Conditions in Sri Lanka

R. A. I. S. Ariyarathna, S. L. Weerasena, C. K. Beneragama

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01 Jan 2020

31(1):21-30

Mass Rearing of Mealybug Predator, Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) on two Mealybug Species, Planococcus minor and Pseudococcus viburni

D. U. M. Gunawardana, K. S. Hemachandra

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01 Jan 2020

31(1):31-41

Role and capacity of tea societies in the smallholding sector in Sri Lanka: an assessment based on the perceptions of extension officers

K. G. J. P. Mahindapala, M. W. A. P. Jayathilaka, L. N. A. C. Jayawardane, K. P. P. Kopiyawattage, M. P. M. De Mel

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01 Jan 2020

31(1):43-55

Morphometric and molecular characterization of isolates of the root lesion nematode, Pratylenchus loosi infecting Tea in Sri Lanka

P. G. D. S. Amarasena, K. M. Mohotti, D. M. De Costa, J. Fosu-Nyarko

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01 Jan 2020

31(1):57-71

Effect of the epicuticular wax level of leaf lamina on the behaviour of leaf hopper Deltocephalus menoni (Hemiptera: Cicadellidae); A vector of sugarcane white leaf disease

K. M. G. Chanchala, V. K. A. S. M. Wanasinghe, K. S. Hemachandra, L. Nugaliyadde, W. R. G. Witharama

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01 Jan 2020

31(1):73-85

Response of tree community composition, plant diversity and aboveground tree biomass in tropical rainforests of Sri Lanka to variation in altitude

H. K. N. Sanjeewani, D. P. Samarasinghe, H. D. Jayasinghe, P. H. Gardiyawasam, W. M. P. S. B. Wahala, W. M. G. A. S. T. B. Wijetunga, K. D. B. Ukuwela, P. Gomes, W. A. J. M. De Costa

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01 Jan 2020

31(1):87-101

Relationship between management practices and calf welfare in mid- country dairy farms in Sri Lanka

W. P. C. G. Weerasinghe, E. Rajapaksha, W. W. D. A. Gunawardena, T. S. Samarakone

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01 Jan 2020

31(1):103-113