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Calathea Allouia (Aubl.) Lindl] Production in Trinidad

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Calathea Allouia (Aubl.) Lindl] Production in Trinidad Agro-economic assessment Leren [Calathea allouia (Aubl.) Lindl] production in Trinidad and Tobago. Puran Bridgemohan Bio-sciences, Agriculture, and Food Technology, The University of the Trinidad and Tobago, Waterloo Research Centre, Carapichaima, Trinidad & Tobago [email protected] THE UNIVERSITY OF TRINIDAD AND TOBAGO New Carbohydrate source! THE UNIVERSITY OF TRINIDAD AND TOBAGO Leren or topi‐tambo [Calathea allouia (Aubl.) Lindl] y tuberous root crop y Puerto Rico, Trinidad and Brazil y seasonal snack food y culinary • new hors d’ oeuvres y little research • (Martin and Cabinillas, 1976) Uses y Substitute for water chest nuts y Flour –pastry, biscuits y Infant formula THE UNIVERSITY OF TRINIDAD AND TOBAGO Canned Water Chest nuts THE UNIVERSITY OF TRINIDAD AND TOBAGO Processed Tubers THE UNIVERSITY OF TRINIDAD AND TOBAGO Botany Leren or topi‐tambo [Calathea allouia (Aubl.) Lindl] y family : marantaceae, y West Indian arrow root, maranta arundinacea. y herbaceous shrub [1.5 m ] y rhizomes ‐ fibrous roots with edible tubers y tubers [5 to 12g] THE UNIVERSITY OF TRINIDAD AND TOBAGO Food Value y protein [6.6% ]. y starch [13 to 15%] y Fat [ 0.0%] THE UNIVERSITY OF TRINIDAD AND TOBAGO Agronomy y cultivated by small farmers y subsistence farming practices y pure stands or intercropped (< 0.5 ha) y minimum inputs of fertilizer or pesticides. y Shade or full sunlight y Propagation ‐ small pieces of rhizomes or the “head” y harvest and consumption coincides with the dry season THE UNIVERSITY OF TRINIDAD AND TOBAGO Agronomy y rhizomes are exhibit dormancy [ January to July] y Tuberization ‐ photo periodic y crop cycle [9 to 14 MAP]. y yield varied between 2,500 to 5,000kg.ha‐1 of fresh tubers y farm gate price ‐ $2.50 to $3.00.kg‐1 (US) [Bridgemohan, unpubl. 2009] THE UNIVERSITY OF TRINIDAD AND TOBAGO Propagating Material rhizome THE UNIVERSITY OF TRINIDAD AND TOBAGO THE UNIVERSITY OF TRINIDAD AND TOBAGO Crop challenge y Crop bio‐diversity y place in the agriculture y expand production y improve crop management y increase income y Post harvest and Processing y novel product / consuming and presenting product y absence of information y agronomy or crop management for yield improvement THE UNIVERSITY OF TRINIDAD AND TOBAGO To investigate the effects of crop : Nutrition X light X density X cropping systems on the crop development and yield of fresh tubers. THE UNIVERSITY OF TRINIDAD AND TOBAGO Methodology y Field and Greenhouse trials [2008 to 2010] 1. Effect of crop nutrition and light intensity on the yield (shoot dry matter and tubers) of calathea allouia, [Pot / shade‐house Study] , 2. Effect of crop nutrition, crop density and intercropping on the yield of calathea allouia [Field Study] THE UNIVERSITY OF TRINIDAD AND TOBAGO Nutrition [ F] Fertilizer rate [kg.ha‐1] [13:13:20 (NPK] y F1 ‐ 400 y F2 ‐ 500 y F3 ‐ 600 THE UNIVERSITY OF TRINIDAD AND TOBAGO Light (i) Shade THE UNIVERSITY OF TRINIDAD AND TOBAGO Light (ii) Sunlight THE UNIVERSITY OF TRINIDAD AND TOBAGO Crop Density Density t.p.h‐1 y 27.5 y 20.8 THE UNIVERSITY OF TRINIDAD AND TOBAGO Cropping Systems (i) Intercrop THE UNIVERSITY OF TRINIDAD AND TOBAGO Cropping Systems (ii) Pure stand THE UNIVERSITY OF TRINIDAD AND TOBAGO Fertilizer Shoot dry matter.plant-1 Rhizome dry matter.plant-1 rate [g] [g] [kg.ha-1] sunlight shade sunlight shade 400 102.3 91.65 574.7 524.5 500 101.4 108.2 600.2 569.34 600 98.1 112.9* 584.3 682.2* mean 102.19 599.11 S.E. 9.186 88.861 THE UNIVERSITY OF TRINIDAD AND TOBAGO Fertilizer rate Nos. Tubers.plant-1 Tuber yield.plant-1 [kg.ha-1] [g] sunlight shade sunlight shade 400 41.1 31.8 291.6 378.8 500 33.3 44.25* 306.1 473.3* 600 39.3 24.3 378.8 378.4 mean 35.6 333.34 S.E. [5.237] [51.321] THE UNIVERSITY OF TRINIDAD AND TOBAGO Treatment Intercrop Pure stand Tuber Tuber Rhizome Tuber Tuber nos Rhizome weight nos g.pl-1 weight pl-1 Density t.p.h- Fertilizer g.pl-1 pl-1. 1 Kg.ha-1 27.5 400 378.5 123.5 26.2 487.3 162.7 28.3 500 406 102.3 15.2 389.8 140.3 25.6 600 357.8 193.7 34.5 522.9 147.6 25 20.8 400 439.9 201.2 22.8 363.7 121.7 21.5 500 442.8 274.4* 38 626.12 167.7 26.5 600 432.1 264.2 33.8 693 229.7* 34.4 mean 410.47 142.79 24.4 456.42 158.60 26.48 S.E. 32.850 227.90 3.294 41.54 18.162 2.307 THE UNIVERSITY OF TRINIDAD AND TOBAGO Recommended Cropping System for small scale production of Leren THE UNIVERSITY OF TRINIDAD AND TOBAGO Conclusion y Production confined to small farms y Low input crop management y basal fertilizer application [0.5t.ha‐1] yields increased under shade (9,800kg. ha‐1)[green house] y intercropping (5,500kg.ha‐1). [ field] y farm gate price at $20.00 kg.‐1 y income of $110,000 to $190,000(TT). ha‐1 over nine (9) months period y additional income [0.75ha‐1] pigeon pea intercrop. THE UNIVERSITY OF TRINIDAD AND TOBAGO Cooked Leren THE UNIVERSITY OF TRINIDAD AND TOBAGO THE UNIVERSITY OF TRINIDAD AND TOBAGO .
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