Studies on the Dry Matter Production of Sweet Potato : IX. The effect of potassium on the dry matter production of sweet potato.

Tsuno, Yukindo; Fujise, Kazuma

doi:10.1626/jcs.33.236

Cited by 7 publications

(2 citation statements)

References 3 publications

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“…Production on the sweet potato highly depends on the varieties and environmental conditions such as soil conditions, precipitation and solar radiation (Tsuno and Fujise, 1965). One of the matters that led to the low production of formation sweet potato tuber is due to high growth on plant vegetative hence soil conditions and heavy rainfall (Mwololo et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Yield response of ten varieties of sweet potato (Ipomoea batatas L.) cultivated on dryland in rainy season

Saitama

Nugroho

Widaryanto

2017

J.Degrade.Min.Land Manage.

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Sweet potato is a tuber commodity and one of alternative crops in Indonesia. The demand of sweet potato in Indonesia continues to increase. However, the supply of sweet potatoes for consumption estimated is 2020 in Indonesia will be deficit. Low production of sweet potato is basically due to the decrease of land area as cultivation production and also sweet potatoes have a low yield when planted in rainy season. Based on the high utilization of sweet potato make demand for this commodities continues to increase.Therefore, several strategies to increase crop yields of sweet potato needs to be done. This study aimed to elucidate various sweet potato varieties that can cultivated on dry land in the rainy season.

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Section: Introductionmentioning

confidence: 99%

Yield response of ten varieties of sweet potato (Ipomoea batatas L.) cultivated on dryland in rainy season

Saitama

Nugroho

Widaryanto

2017

J.Degrade.Min.Land Manage.

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“…(Walter, 1966), but the predicted yield potential in the sweet potato species is approximately twice that of the highest experimental yield recorded (de Vries et al, 1967). Despite earlier reports emphasizing the importance of aspects related to dry matter accumulation such as crop growth rate, net assimilation rate and leaf area index (Tsuno and Fujise, 1965;Tsuno, 1971), as well as of the distribution of assimilates (Fujise and Tsuno, 1967;Austin and Aung, 1973) in the improvement of sweet potatoes, the terminal components of yield in tuberous crops are the numbers and mean weights of tubers per plant. A major characteristic of a high-yielding sweet potato cultivar is, therefore, consistent production of both high tuber numbers and mean tuber weights.…”

Section: Marketable Yield and Yield Componentsmentioning

confidence: 97%

Yield and Yield Components of Six Sweet Potato (Ipomoea batatas) Cultivars I. Contribution of Yield Components to Tuber Yield

Lowe

Wilson

1975

Ex. Agric.

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Total yield and yield components (tuber numbers and mean tuber weights) of six local sweet potato cultivars were compared in wet and dry season crops. There were significant negative correlations between tuber number and mean tuber weight in five of the six cultivars, and positive correlations between these yield components and total yield, suggesting that cultivars may be grouped into 'tuber number-tuber weight' and 'tuber weight' types, as well as a 'random type' in which yield is related to neither component. Marketable yield tended to be directly related to both components, and cultivars with lower tuber numbers usually produced a higher percentage of marketable yields. The significance of these findings for sweet potato yield improvement is discussed.Numbers and size of yield organs per plant are the terminal components of yield, and in cereals these components are related to flower and fruit development (Engledow and Wadham, 1923;Thorne, 1966), but the contribution of either component to yield also varies with variety, e.g. rice varieties have been classified into 'panicle-weight' and 'panicle-number' types, according to the relative importance of these two components in determining yield (I.R. R.I., 1966;Owen, 1969). The main components of yield in tuberous crops are the number and mean weight of tubers, which are directly related to the process of tuberization, i.e. tuber initiation and tuber growth (Artschwager, 1924;Togari, 1950;Wilson, 1970; Wilson and Lowe, 1973). Varietal differences in yield components are of great significance in tuberous crops, e.g. Solanum potato, since only tubers which attain a certain minimum size and weight by harvest are saleable (Toosey, 1963). This paper compares the total yield and yield components at final harvest in six local sweet potato cultivars with contrasting canopy structure and yield potential (Wholey and Haynes, 1969), as well as tuber initiation and tuber development characteristics (Wilson and Lowe, 1973;Lowe and Wilson, 1974) for two crops (wet and dry season), to enable cultivars to be grouped according to the relative contribution of yield components to yield. The relation between total and marketable yield in the cultivars studied is examined, and the significance of yield component compensation (Adams, 1967) for improvement of the yield potential in sweet potato is discussed. MATERIALS AND METHODSDry and wet season crops of six sweet potato cultivars (A28/7, Cg/g, I62, AI6/15, 03/62 and the commercial cultivar 049) were cultivated, using cultural practices

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Breeding Sweet Potatoes

Martin

Jones

1986

Plant Breeding Reviews

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Studies on the Dry Matter Production of Sweet Potato : IX. The effect of potassium on the dry matter production of sweet potato.

Cited by 7 publications

References 3 publications

Yield response of ten varieties of sweet potato (Ipomoea batatas L.) cultivated on dryland in rainy season

Yield response of ten varieties of sweet potato (Ipomoea batatas L.) cultivated on dryland in rainy season

Yield and Yield Components of Six Sweet Potato (Ipomoea batatas) Cultivars I. Contribution of Yield Components to Tuber Yield

Breeding Sweet Potatoes

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