Growth and development of Xanthosoma and Colocasia under different light and water supply conditions

Caesar, K.

doi:10.1016/0378-4290(80)90032-5

Cited by 22 publications

(16 citation statements)

References 1 publication

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“…Eggplant productivity decreased by up to 91% when grown close to trees, while chilli pepper yields in zones A and B were, respectively, 88 and 150% higher than in control plots in 2006. Similar to chilli pepper, taro yields obtained under the tree canopies were one to three times greater than in the control plots, consistent with results obtained by Ceasar (1980), Valenzuela et al (1991) and Sanou et al (2011), who reported that tuber dry weight in taro increased with decreasing light intensity.…”

Section: Discussionsupporting

confidence: 88%

Testing the shade tolerance of selected crops under Parkia biglobosa (Jacq.) Benth. in an agroforestry parkland in Burkina Faso, West Africa

2011

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In Western Africa, interactions between trees and agricultural crops are a key element in determining parkland management in an agricultural environment that is rapidly changing. Eggplant (Solanum melongena), chilli pepper (Capsicum annuum), taro (Colocasia esculenta) and pearl millet (Pennisetum glaucum) were tested for their shade tolerance under Parkia biglobosa trees in southcentral Burkina Faso using a split-plot design. Soil characteristics, chlorophyll fluorescence and crop growth and yield were measured to quantify the effect of P. biglobosa on the crops and their environment. The experiment ran during 2 years. P. biglobosa suppressed the vegetative growth and yield of pearl millet in both years. Eggplant and chilli pepper were severely injured by the rains and produced fruits only during the first year. Eggplant yields were suppressed by trees to between one third and one tenth of the yield in the control plots. However, chilli pepper yields increased by up to 150% when grown under the tree canopy compared to the control. In both years, the vegetative growth and yield of taro was higher when grown in the shade than outside the tree canopy.

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Section: Discussionsupporting

confidence: 88%

Testing the shade tolerance of selected crops under Parkia biglobosa (Jacq.) Benth. in an agroforestry parkland in Burkina Faso, West Africa

2011

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“…Therefore, the performance of taro, being a shade tolerant plant, was enhanced due to the favourable microclimate created by heavy shade of néré. The performance of taro in the present study was similar to the results obtained by Miyasaka et al (2003) while a contrasting finding was reported by Caesar (1980). These contradictory results could be due to the difference in study site conditions.…”

Section: Discussionsupporting

confidence: 85%

“…These contradictory results could be due to the difference in study site conditions. In the study site of Caesar (1980), temperature and light at noon were 29.2°C and 160000 lux (&2500 lmol m -2 s -1 ) in the open while in the present study the maximum values of these parameters were 38.2°C and 1619.39 lmol m -2 s -1 .…”

Section: Discussioncontrasting

confidence: 45%

Effect of shading by baobab (Adansonia digitata) and néré (Parkia biglobosa) on yields of millet (Pennisetum glaucum) and taro (Colocasia esculenta) in parkland systems in Burkina Faso, West Africa

Sanou

Bayala²,

Teklehaimanot

et al. 2011

Agroforest Syst

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Effect of shading by baobab (Adansonia digitata) and néré (Parkia biglobosa) on yields of millet (Pennisetum glaucum) and taro (Colocasia esculenta) in parkland systems in Burkina Faso, West Africa Abstract An experiment was conducted in Nobéré, Burkina Faso to assess the effect of shade of two indigenous fruit trees, Adansonia digitata (Baobab) and Parkia biglobosa (Néré), on a shade-tolerant crop called taro (Colocasia esculenta) in comparison with millet (Pennisetum glaucum) a shade-intolerant crop. Photosynthetically active radiation (PAR) and performance of crops under trees and in the open field were assessed during three cropping seasons. Millet performed better under baobab (806.1 ± 121.48 kg ha -1 ) compared to the control plot (595.8 ± 83.43 kg ha -1 ) and néré (320.2 ± 59.91 kg ha -1 ). In contrast, the yield of taro was higher under néré (4124.0 ± 469.05 kg ha -1 ) compared to the control plot (2336.9 ± 617.04 kg ha -1 ) and baobab (2738.3 ± 595.61 kg ha -1 ). There was a strong relationship between the amount of PAR intercepted by trees and crop yields under trees. As PAR decreased the yield of millet decreased whereas the yield of taro increased. Hence, it was concluded that parkland productivity could be enhanced by cropping taro under néré where light reduction was 83, 56 and 18% in zones A, B and C, respectively. An efficient association of baobab with crops could be the production of taro in zone A and millet in zones B and C where PAR reduction was 62, 38 and 15%, respectively.

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“…For example, members of the genus Alocasia are reported to be a m o n g the most shade tolerant of the food crops [1]. It has been reported that aroids tolerate shade by either producing larger leaves [3,9] or exhibiting increased photosynthetic rates [10]. Plants in the aroid genus Amorphophallus grown under 50% shade had greater photosynthetic rates under saturating light conditions than sun-grown plants, which was correlated with greater corm p r o d u c t i o n [9].…”

Section: Introductionmentioning

confidence: 99%

“…Each of these species may have a different mechanism of shade adaptation since their centers of origin differ. C o c o y a m typically adapts to shaded conditions by producing larger leaf laminas with longer petioles [3]. There is no available information about the effect of shading on CO2 assimilation rates of taro and cocoyam; and there is only one previous report on the effect of leaf age and temperature on the photosynthetic efficiency of taro [15].…”

Section: Introductionmentioning

confidence: 99%

Net CO2 assimilation of taro and cocoyam as affected by shading and leaf age

Schaffer

O'Hair

1987

Photosynth Res

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Taro and cocoyam were grown outdoors in either full sun or under 40% shade. Leaves were tagged as they emerged and the effect of leaf age on net CO2 assimilation rate (A) was determined. The effects of shading on A, transpiration (E), stomatal conductance for CO2 (gc) and H2O (gs), and water use efficiency (WUE) were also determined for leaves of a single age for each species. The effect of leaf age on A was similar for both species. Net CO2 assimilation rates increased as leaf age increased up to 28 days with the exception of a sharp decline in A for 21 day-old leaves which corresponded to unusually low temperatures during the period of leaf expansion. A generally decreased as leaves aged beyond 28 days. Cocoyam had higher A rates than taro. Leaves of shade-grown plants had higher rates of A and E for both species at photosynthetic photon flux densities (PPFD) up to 1600 μmol s(-1) m(-2). Shade-grown leaves of cocoyam had greater leaf dry weights per area (LW/A) and a trend toward higher gc and gs than sun-grown leaves. Shade leaves of taro had greater gc and g3 rates than sun-grown leaves. The data suggest that taro and cocoyam are highly adapted to moderate shade conditions.

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Growth and development of Xanthosoma and Colocasia under different light and water supply conditions

Cited by 22 publications

References 1 publication

Testing the shade tolerance of selected crops under Parkia biglobosa (Jacq.) Benth. in an agroforestry parkland in Burkina Faso, West Africa

Testing the shade tolerance of selected crops under Parkia biglobosa (Jacq.) Benth. in an agroforestry parkland in Burkina Faso, West Africa

Effect of shading by baobab (Adansonia digitata) and néré (Parkia biglobosa) on yields of millet (Pennisetum glaucum) and taro (Colocasia esculenta) in parkland systems in Burkina Faso, West Africa

Net CO2 assimilation of taro and cocoyam as affected by shading and leaf age

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