Influence of cassava planting patterns and pruning methods on crop yield in a cassava-based cropping system

Ayoola, O. T.; Agboola, A. A.

doi:10.4314/acsj.v12i2.27669

Cited by 13 publications

(11 citation statements)

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“…The number of roots per plant with no pruning cassava plant were obtained about 21.9 and 25.7% over the cassava plant debranching and cutback, respectively. In line with this study of [10] who reported that the highest average number of roots per plant were obtained from the unpruned plants, while no definite trend was observed under the two pruning methods. Moreover, increased number of storage roots per plant with wider root appeared to be responsible for good storage root yield per plant in cassava.…”

Section: Number Of Roots and Root Weightsupporting

confidence: 85%

Effect of Spacing and Pruning Methods on Root Yield and Yield Parameters of Cassava (Mahinot esculenta Crantz) in Fedis District, East Harerghe Zone, Ethiopia

Benti

Tadesse

Degefa

et al. 2022

AJAHR

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Due to the long duration of cassava roots maturity, drought and disease problems, intercropping grain and legumes in cassava should be developed. To intercrop component crops, it is important to reduce cassavas’ canopy through the evaluation of the pruning effect on root yields. The study was aimed to determine the effects of different plant spacing and pruning methods on root yield and root yield parameters of cassava grown in Eastern part of Ethiopia. Cassava variety ‘Kello’ was used for the experiment as a test crop. Five cassava plant intra-row spacing (0.60, 0.80, 1.00, 1.20 and 1.40 m) were assigned to main plots while pruning methods (cutback, debranching and no pruning) were assigned to sub plots. The experiment was laid out in randomized complete block design (RCBD) in a factorial arrangement with three replications. The result revealed that there were highly significant differences for number of roots per plant, root length, average root weight and unmarketable due to the effect of pruning, while significant differences was observed for total root yields due to intra-row spacing. There were also highly significant interaction effects for marketable and total root yields due to the effects of intra-row spacing and pruning. Cassava with no pruning recorded about, 21.9 and 25.7%, 10 and 26.4%, 17.2 and 19.9%, 43.5 and 58.7% over cassava with debranching and cutback for number of roots per plant, root diameter, root length and root weights, respectively. Cassava pruning and intra-row spacing also interacted and the highest root yield was recorded at 80 cm with cassava no pruning. Averagely, cassava with no pruning provided the highest marketable and total root yield by about 39.3 and 44.7%, 35.8 and 41.6% over cassava with debranching and cutback, respectively. Therefore, considering the land scarcity of the area intra-row plant spacing of 80 cm and cassava with no pruning was recommended for the study area and similar agro-ecology for land economy in eastern Harerghe zone.

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Section: Number Of Roots and Root Weightsupporting

confidence: 85%

Effect of Spacing and Pruning Methods on Root Yield and Yield Parameters of Cassava (Mahinot esculenta Crantz) in Fedis District, East Harerghe Zone, Ethiopia

Benti

Tadesse

Degefa

et al. 2022

AJAHR

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“…It is tolerant to low soil fertility conditions and is drought resistant (Tshiunza, 1996;Nguyen et al, 2008;Elbersen & Oyen, 2009). Intercropping with other crops is common (Ayoola & Agboola, 2004). The labour requirements are presented in Table 5.…”

Section: Cassavamentioning

confidence: 99%

The economic performance of jatropha, cassava and Eucalyptus production systems for energy in an East African smallholder setting

2012

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This study evaluates the potential economic feasibility of three smallholder energy crop production systems (jatropha, cassava and eucalyptus) under typical semi-arid conditions in Eastern Africa. This feasibility is determined by assessing net present values (NPV), internal rates of return (IRR), benefit-cost ratios (BCR) and payback periods (PBP). In addition, the production costs are compared to the costs of reference energy systems, petrol, diesel and pellets. Low and intermediate input systems are considered and specific attention is paid to the opportunity cost of labour, by considering both family labour (no labour costs) and hired labour. The results show that all family labour settings have positive NPVs and high IRR and BCR values. Moreover, cassava has the highest family labour NPV (2900-5800US$ ha À1 ) and the shortest PBP, but the required investment costs are high in comparision with the other crops. If hired labour is used, the NPV of eucalyptus is highest (380-1400$/ ha À1 ), and it is also the least sensitive to changes in wages and yields. Jatropha performs best only for the indicator IRR and only with family labour or low labour opportunity costs. The analysis and comparison of bioenergy production costs shows that eucalyptus pellets (2.6-3.1$ GJ À1 ) are competitive compared with reference pellets at current market prices (5$ GJ À1 ). Jatropha SVO (19$ GJ ) is not competitive. The economic performance is sensitive to variations in crop yields and yield data are highly uncertain. However, this study demonstrates that there is considerable potential for increasing the economic performance by further improvements in yield, harvesting efficiency and conversion efficiency as well as reductions in transport and packaging costs.

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“…This is because defoliation reduces root weight due to reduced carbohydrates synthesized per plant and hence reduced quantity of photoassimilates available for storage in cassava. Ayoola and Agboola (2004) observed reduction in yield and mean storage root weight when cassava plants were pruned irrespective of the pruning method. The reduction in storage root sizes in the pruned plants could be explained by the fact that as the plants were pruned, photosynthates that should have been used for storage root bulking were used for regrowth of new shoots.…”

Section: Carrotmentioning

confidence: 88%

A Review on Advances in Pruning to Vegetable Crops

Thakur¹,

Kumar²,

Singh³

2018

Int.J.Curr.Microbiol.App.Sci

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These are typically shoots or branches, but sometimes buds, flowers, fruit or roots are removed as well. Objective of pruningTo remove the non-productive parts in order to divert the energy into those parts that is capable of bearing fruits. Maintain the proper proportion of root: shoot ratio.Better quality of fruits by better light penetration.Dry matter distribution is primarily regulated by the sink-strength of the various organs. When the available assimilates equal or exceed the total sink strength of the plant, the growth rates of the vegetative parts and the individual fruit or clusters occur at the potential rates. However, when the amount of available assimilates is less than the total sink strength, the assimilates are distributed between leaves, stem, roots and fruit according to their individual sink strengths relative to the total sink strength.The sink strength of an organ can be quantified by the potential growth rate of a sink, that is, the growth rate under conditions of non-limiting assimilate supply. Fruit

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Influence of cassava planting patterns and pruning methods on crop yield in a cassava-based cropping system

Cited by 13 publications

References 0 publications

Effect of Spacing and Pruning Methods on Root Yield and Yield Parameters of Cassava (Mahinot esculenta Crantz) in Fedis District, East Harerghe Zone, Ethiopia

Effect of Spacing and Pruning Methods on Root Yield and Yield Parameters of Cassava (Mahinot esculenta Crantz) in Fedis District, East Harerghe Zone, Ethiopia

The economic performance of jatropha, cassava and Eucalyptus production systems for energy in an East African smallholder setting

A Review on Advances in Pruning to Vegetable Crops

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