Genetic Structure and Geographical Relationship of Selected Colocasia esculenta [L. Schott] Germplasm Using SSRs

Palapala, Valerie A.; Akwee, Peter Edome

doi:10.9734/jabb/2016/28479

Cited by 2 publications

(4 citation statements)

References 17 publications

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“…It is further notable that the yields observed from the diferent watering regimes and planting densities in this study were greater than the East African, African, and world averages of ≤1 t/ha, 5.6 t/ha, and 6.6 t/ha, respectively [4,5]. Te total yield in taro is a function of the number of corms produced per unit area rather than the size of the individual corm/corm mass.…”

Section: Taro Corm Yield Componentsmentioning

confidence: 69%

“…It is one of the most underutilized crops in sub-Saharan Africa and an important staple food in the human diet. However, it ranks lower than other tubers such as sweet potato (Ipomoea batatas), potato (Solanum tuberosum), and cassava (Manihot esculenta) [4]. Taro yields on average in Africa remain low, with annual yield rarely exceeding one ton per hectare in East Africa [5] compared to Africa (5.9 tons/ha) and the world (6.6 tons/ha) [4].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Watering Regimes and Planting Density on Taro (Colocasia esculenta) Growth, Yield, and Yield Components in Embu, Kenya

Njuguna

Karuma

Gicheru

et al. 2023

International Journal of Agronomy

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Taro (Colocasia esculenta (L.) Schott) is one of the most underutilized crops in sub-Saharan Africa and an important staple food in the tropics. Understanding its growth response under selected watering regimes and planting densities underpins this research. A study was conducted at the Kenya Agricultural and Livestock Research Organization (KALRO), Embu Research Centre, during the long rains (LR) in 2021 and the short rains (SR) in 2021–2022. A factorial experiment with a split-plot layout arranged in a completely randomized block design was used. The main factor was the irrigation levels, while the subfactor was the planting density, with three replications. The three irrigation levels were at 100%, 60%, and 30% based on the field capacity (FC). The planting densities used were 0.5 m × 0.5 m (40,000 plants ha−1), 1 m × 0.5 m (20,000 plants ha−1), and 1 m × 1 m (10,000 plants ha−1), representative of high, medium, and low planting densities, respectively. Time and season ( P < 0.05 ) significantly influenced taro growth components (plant height, leaf area, leaf area index, and vegetative growth index) and yield components (corm length, corm diameter, corm mass, yield, and total biomass). Planting density influenced the leaf area and the leaf area index ( P < 0.05 ). The watering regime did not affect taro growth or yield components. Corm mass (0.59 kg), total biomass (49.8 t/ha), and yield (13.38 t/ha) were all the highest in the 30% FC. The 1 m × 0.5 m spacing produced the highest corm mass (0.62 kg). The high planting density (0.5 m × 0.5 m) resulted in the highest total biomass (70.2 t/ha), yield (20.84 t/ha), and harvest index (30.44%). As a result, the 0.5 m × 0.5 m planting density and 30% FC watering regime are recommended to farmers in the area for increased yields and food security.

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Section: Taro Corm Yield Componentsmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Effects of Watering Regimes and Planting Density on Taro (Colocasia esculenta) Growth, Yield, and Yield Components in Embu, Kenya

Njuguna

Karuma

Gicheru

et al. 2023

International Journal of Agronomy

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“…They aid in digestion, are gluten-free, fat-free, and low in calories. Thiamin,riboflavin,iron,phosphorus,zinc,vitamin B6,vitamin C,niacin,potassium,copper,and manganese are just a few of the vitamins and minerals that the leaves are rich in (Enwelu et al, 2014;Palapala and Akwee, 2016). On a dry-weight basis, the young leaves have a high protein content of roughly 23 % (Tumuhimbise et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Since the leaves and corms contain high calcium oxalate content, they cannot be consumed directly, therefore, properly cooking them eliminates calcium oxalate, the acriditycausing component (Verma et al, 2023). In East Africa, the corms have traditionally been steamed and eaten as a snack alongside tea or a beverage (Akwee et al, 2015;Chivenge et al, 2015;Palapala and Akwee, 2016). Most root crops are regarded as excellent energy providers due to their high starch content, but they are marginal to poor protein suppliers (Huang et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

PROXIMATE ANALYSIS AND MINERAL PROFILE OF TARO (Colocasia esculenta) IN EMBU, KENYA

Karuma,

Njuguna,

Gicheru

et al. 2024

Trop Subtrop Agroecosyst

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Background. Taro (Colocasia esculenta) is one of the underutilized crops in Kenya, grown under a wide range of environmental and edaphic conditions. This crop has exceptional dietary value and numerous culinary applications due to its edible leaves and corms. However, the mineral nutrient composition of taro in Kenya is still not well known due to a lack of scientific information concerning production. Objective. To determine the proximate composition and mineral profile of taro under different watering regimes and planting densities in Embu, Kenya. Methodology. A study was conducted at the Kenya Agricultural and Livestock Research Organization (KALRO) – Embu Research Centre, during the long rains (LR) 2021, and short rains (SR) 2021/2022. A factorial experiment with a split-plot layout arranged in a completely randomized block design was adopted. The watering regimes (100 %, 60 %, and 30 % based on the field capacity (FC)) were the main factor while the sub-factor was the planting density, with three replications. The planting densities used were 0.5 m × 0.5 m (40,000 plants ha-1), 1 m × 0.5 m (20,000 plants ha-1), and 1 m × 1 m (10,000 plants ha-1), representative of high, medium, and low planting densities respectively. Proximate analysis and mineral content were determined. Results. Significant differences (P < 0.05) in seasons were noted for protein, fibre, potassium, calcium, sodium, and zinc in the taro corms. The high carbohydrate content observed in this study (35 – 39 %) indicates that taro tubers are a good source of nutritional energy. Potassium (> 5000 mg kg -1) and magnesium (> 1000 mg kg -1) were the most prevalent mineral elements in taro corms and leaves, with copper (< 25 mg kg -1) being the least prevalent. Implications. Consumption of nutrient-rich foods such as taro helps the body to utilize the necessary nutrients to combat malnutrition and promote food security in rural communities. Conclusion. Taro leaves can be recommended as leafy vegetables as they are good sources of potassium, magnesium, calcium, manganese, iron, copper, and zinc; and the corms have low fat and protein content, high calorific energy, and high carbohydrate content. Taro represents one of the main sources of energy in many parts of the tropics and its production can be recommended in sub-humid areas in Kenya.

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Genetic Structure and Geographical Relationship of Selected Colocasia esculenta [L. Schott] Germplasm Using SSRs

Abstract: Aims: SSR markers were used to infer population genetic structure variability in taro cultivars with the objective of characterizing the allelic diversity of each geographical population.

Cited by 2 publications

References 17 publications

Effects of Watering Regimes and Planting Density on Taro (Colocasia esculenta) Growth, Yield, and Yield Components in Embu, Kenya

Effects of Watering Regimes and Planting Density on Taro (Colocasia esculenta) Growth, Yield, and Yield Components in Embu, Kenya

PROXIMATE ANALYSIS AND MINERAL PROFILE OF TARO (Colocasia esculenta) IN EMBU, KENYA

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