Growth and Yield Components of Sweet Potato (Ipomoea batatas L.) and their Relationships with Root Yield

Yahaya, S. U.; Saad, Abbas; Mohammed, Salisu; Afuafe, S. O.

doi:10.9734/ajea/2015/20078

Cited by 7 publications

(10 citation statements)

References 8 publications

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“…This finding is different from that of Kathabwalika et al [34], in Malawi where the leaf area was found to be significantly different (P = 00) between the varieties studied. In a similar study in Nigeria, however, Yahaya et al [16] found that the numbers of leaves and roots as well as the average mass of roots in sweet potato plants differed from each other significantly. They also observed a positive relationship between the number of leaves and the yield of root tubers.…”

Section: Mean Leaf Areamentioning

confidence: 88%

“…The aggregation of these benefits and potentials, has transitioned sweet potato from being a crop farmed solely for domestic food augmentation to a commercial one with the livelihood of many farmers and traders in the less developed countries hinged on it [16][17]. The resulting effect is the increased production of the crop in almost all tropical and subtropical countries in Africa, Asia and parts of the Americas.…”

Section: Introductionmentioning

confidence: 99%

“…Does a sweet potato plant with massive leaf growth for instance, result in high yield of tubers? This will inform the appropriate strategies to employ in order to maximize yield [6,16,23]. Data from works done elsewhere on these vegetative parameters and their relationship with tuber yield exist in literature.…”

Section: Introductionmentioning

confidence: 99%

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Growth and Yield Characteristics of Five Different Sweet Potato Varieties Grown in the Guinea Savanna Ecological Zone of Ghana

Ayimbire¹,

Asumboya²,

Atinga

et al. 2021

JEAI

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Aim: To determine the growth characteristics of five sweet potato varieties on different soil types as well as how they each relates to tuber yield. This investigation will help guide farmers from resource-limited areas to select varieties that grow well in austere soils to produce good yield of tubers, thereby boosting global food security. Study Design: Randomized complete block design (RCBD) with five treatments and three replications. Place and Duration of Study: Experimental field of Bolgatanga Technical University for five months. Methodology: Planting was done by inserting 10 cm length of each 30 cm long soft wood vine cutting into the soil, followed by watering. Five vine cuttings planted per ridge at a spacing of 60cm. Vine cuttings were transplanted in the same order on each ridge. There were 15 plants per treatment, so seventy-five (75) for the five treatments. Results: Analysis of the soil showed sandy loamy soil with suitable pH of 6.05. The Orange flesh and Agric white varieties had the largest and smallest leaf areas of 177.76 cm2 and 110.74 cm2 respectively. Leaf area was positively correlated with root tuber mass in only the Red local variety (r = 0.026). Petiole length of the Orange flesh variety (19.08 cm) was significantly longer than that of the Agric white (13.55 cm, p = 0.02), Agric orange flesh (13.85 cm, p = 0.04), Red skin (11.84 cm, p = 0.00) and Red local (12.18 cm, p = 0.00) varieties. Petiole length was positively correlated with tuber yield in only the Orange flesh variety (r = 204). The Red skin (174.28 cm) and Red local (172.46 cm) varieties had the longest vines than all the rest, though not statistically significant (p = 0.241). Root tuber yield of the five varieties were Agric white (1.22 Kg), Agric orange flesh (1.40 Kg), Red skin (4.27 Kg), Red local (2.96 Kg) and Orange flesh (5.72 Kg), which were significantly different from each other (p=0.05). Conclusion: The Orange flesh variety had the largest leaf area, longest petioles and the highest root tuber mass. On the other hand, the Agric white variety recorded the least Leaf area, Vine length and Tuber mass while the Red skin variety had the shortest Petioles.

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Section: Mean Leaf Areamentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

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Growth and Yield Characteristics of Five Different Sweet Potato Varieties Grown in the Guinea Savanna Ecological Zone of Ghana

Ayimbire¹,

Asumboya²,

Atinga

et al. 2021

JEAI

View full text Add to dashboard Cite

show abstract

“…Bassey, Effiong, & Aniezi (2019) found that number of tubers, tuber diameter and individual tuber weight correlated with fresh tuber yield, so that the improvement of these three sweet potato characters would simultaneously improved tuber yield. There were sweet potato characters that are positively, highly and significantly correlated with total tuber yield (Yahaya, Saad, Mohammed, & Afuape, 2015), and therefore, improvement of one character might directly lead to an improvement of total tuber yield.…”

Section: Discussionmentioning

confidence: 99%

“…Correlations between yield, yield components, and other economic properties, are important for selection in breeding programs. If genotypic variance and heritability are low for tuber yields then plant improvement might be done more efficiently by selecting non-tuber characters that are positively correlated with yield (Wera, Yalu, Ramakrishna, & Deros, 2015;Yahaya, Saad, Mohammed, & Afuape, 2015). The objectives of the paper was to determine characters that can be used for selection indicators of yield components and yield in sweet potato tolerance improvement in water stress.…”

Section: Introductionmentioning

confidence: 99%

Selection Indicators of Yield Components and Yield for Improvement of Local Sweet Potato under Water Stress

et al. 2021

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Genetic diversity is required for crop improvement against environmental stress. Astudy wasconducted to determine characters as selection indicators of water-stress tolerance, and of yield components and yield. The research method involved a one-factor experiment with 21 sweet potato clones, using a Completely Randomized Block design with three replicates. Water stress in this study mean that the bottom of plants was submerged in water at 2 and 3 months of age. Determination of selection indicators was conducted by estimating the coefficients of genetic and phenotypic variations, heritabilities, genetic advance and correlation test result. The characters of number of leaves, individual leaf area, leaf area per plant, leaf area index, stem length, internode length, number of tubers (storage root), individual tuber weight and yieldas selection indicators of water stress tolerance. Selection indicators of yield components consisted of less number of leaves, small leaf size, short stemsand number of branches, whereas selection indicators of yield were small leaf size, number of branches, number of tubers and individual tuber weight. Selection became effective and efficient when the selection indicators were influenced greatly by genetic factors.

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Participatory on-farm evaluation of new orange-fleshed sweetpotato varieties in Southern Ethiopia

Aragaw,

Biazin,

Gurmu

et al. 2024

Open Agriculture

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Sweetpotato is the second most important root crop in Ethiopia, making an important contribution to food security in the densely populated areas of southern Ethiopia. While the white-fleshed sweetpotato (WFSP) varieties have been widely grown, the recently bred pro-vitamin A orange-fleshed sweetpotato (OFSP) varieties are also gaining popularity nationwide. This study evaluated on-farm performances of five new OFSP varieties along with two previously released “check” varieties, one of which is a WFSP, across 13 locations in southern Ethiopia for 2 consecutive seasons (2017 and 2018) with the objective of selecting farmer preferred varieties. The experimental design used was randomized complete block design. Results revealed highly significant differences (p < 0.05) among the tested varieties for all parameters considered. Overall, the new varieties were superior to the check varieties for most of the parameters considered. Kulfo, the OFSP check and the only OFSP variety under production, was inferior in above-ground biomass yield, taste, vegetative, and physical root quality performance. There was a strong negative correlation between altitude and root yields, with the highest root yields being in areas 1,500–1,650 m above sea level. The new varieties were accepted by the farmers due to their better yields, adaptability to the local agro-ecological conditions, and high dry matter content. The results of this study implied that the conventional variety evaluations should be complemented by farmers' participatory processes to ensure the release of acceptable varieties targeting both food security and marketability.

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Growth and Yield Components of Sweet Potato (Ipomoea batatas L.) and their Relationships with Root Yield

Cited by 7 publications

References 8 publications

Growth and Yield Characteristics of Five Different Sweet Potato Varieties Grown in the Guinea Savanna Ecological Zone of Ghana

Growth and Yield Characteristics of Five Different Sweet Potato Varieties Grown in the Guinea Savanna Ecological Zone of Ghana

Selection Indicators of Yield Components and Yield for Improvement of Local Sweet Potato under Water Stress

Participatory on-farm evaluation of new orange-fleshed sweetpotato varieties in Southern Ethiopia

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