The transfer of kūmara (Ipomoea batatas) from East to South Polynesia and its dispersal in New Zealand

2020 ◽  
Vol 129 (4) ◽  
pp. 351-382
Author(s):  
Atholl Anderson ◽  
Fiona Petchey
Keyword(s):  
New Zealand ◽  
Sweet Potato ◽  
Strong Evidence ◽  
Radiocarbon Dating ◽  
Ipomoea Batatas ◽  
Political Change ◽  
Statistical Modelling ◽  
Relative Timing ◽  
Delayed Dispersal

Whether kūmara ‘sweet potato’ (Ipomoea batatas) arrived in South Polynesia with initial colonisation or later is discussed in the light of recent evidence from East Polynesia and by examination and statistical modelling of radiocarbon ages associated with kūmara arrival and dispersal in New Zealand. Largely unresolved difficulties in radiocarbon dating of horticultural sites preclude reaching a secure conclusion about the relative timing of kūmara introduction, but strong evidence emerges of delayed dispersal southward and inland of kūmara cultivation. In the short New Zealand chronology this may have been more significant than the date of arrival for the role of kūmara cultivation in economic and political change.

scholarly journals Molecular Characterization of Sweet potato feathery mottle virus (SPFMV) Isolates from Easter Island, French Polynesia, New Zealand, and Southern Africa

Plant Disease ◽  
2009 ◽  
Vol 93 (9) ◽  
pp. 933-939 ◽  
Author(s):  
M. Rännäli ◽  
V. Czekaj ◽  
R. A. C. Jones ◽  
J. D. Fletcher ◽  
R. I. Davis ◽  
...  
Keyword(s):  
South Africa ◽  
New Zealand ◽  
Sweet Potato ◽  
Southern Africa ◽  
Ipomoea Batatas ◽  
French Polynesia ◽  
Easter Island ◽  
Mottle Virus ◽  
Sweet Potato Virus ◽  
First Time

Strains of Sweet potato feathery mottle virus (SPFMV; Potyvirus; Potyviridae) infecting sweet-potato (Ipomoea batatas) in Oceania, one of the worlds' earliest sweetpotato-growing areas, and in southern Africa were isolated and characterized phylogenetically by analysis of the coat protein (CP) encoding sequences. Sweetpotato plants from Easter Island were co-infected with SPFMV strains C and EA. The EA strain isolates from this isolated location were related phylogenetically to those from Peru and East Africa. Sweetpotato plants from French Polynesia (Tahiti, Tubuai, and Moorea) were co-infected with SPFMV strains C, O, and RC in different combinations, whereas strains C and RC were detected in New Zealand. Sweetpotato plants from Zimbabwe were infected with strains C and EA and those from Cape Town, South Africa, with strains C, O, and RC. Co-infections with SPFMV strains and Sweet potato virus G (Potyvirus) were common and, additionally, Sweet potato chlorotic fleck virus (Carlavirus) was detected in a sample from Tahiti. Taken together, occurrence of different SPFMV strains was established for the first time in Easter Island, French Polynesia, and New Zealand, and new strains were detected in Zimbabwe and the southernmost part of South Africa. These results from the Southern hemisphere reflect the anticipated global distribution of strains C, O, and RC but reveal a wider distribution of strain EA than was known previously.

scholarly journals Water-Deficit Tolerance in Sweet Potato [Ipomoea batatas (L.) Lam.] by Foliar Application of Paclobutrazol: Role of Soluble Sugar and Free Proline

2017 ◽  
Vol 8 ◽  
Author(s):  
Suravoot Yooyongwech ◽  
Thapanee Samphumphuang ◽  
Rujira Tisarum ◽  
Cattarin Theerawitaya ◽  
Suriyan Cha-um
Keyword(s):  
Water Deficit ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Foliar Application ◽  
Soluble Sugar ◽  
Free Proline

Moas and Man (PART I)

Antiquity ◽  
1949 ◽  
Vol 23 (92) ◽  
pp. 172-179 ◽  
Author(s):  
R. S. Duff
Keyword(s):  
New Zealand ◽  
Sweet Potato ◽  
19Th Century ◽  
14Th Century ◽  
Society Islands ◽  
The Past ◽  
The Family ◽  
The 19Th Century ◽  
Family Trees

When we remember that the Maoris volunteered no traditional information about the extinct moa (Dinornis) until Europeans had unearthed its bones, said nothing about the Chatham Islands until after their discovery by Europeans, only recalled dim memories of inhabitants before the Fleet of A.D. 1350 in response to persistent questioning by Europeans, and could not tell us whether Hawaiki was Tahiti or Samoa, we realize the always supine rôle of Maori tradition in aiding the researches of the culture historian.However the sheer mass and variety of these orally transmitted traditions prevented the student from realizing how irrelevant they were to his theme, and caused him to believe that the Maori purpose in transmitting traditions was like his—to satisfy an essentially academic curiosity about the past. The gradual cessation of the output of published traditions has given students the leisure to realize the limitations of those already recorded, and sobered us against the expectation that a Maori tradition current in the 19th century might include a description of a bird which lived perhaps in the 13th, or go into detail over the appearance and habits of the tribes whom his Fleet ancestors dispossessed in the 14th.Fortunately the need for the family to maintain its status within the clan, the clan within the tribe, and the tribe as against other tribes, did involve the careful transmission of family trees (Whakapapa). By comparing the number of generations in many lines back to a Fleet ancestor, the arrival of the Fleet was placed in the mid-14th century. By a brilliant application of the method beyond New Zealand, Percy Smith found a three generation name sequence immediately prior to the Fleet arrival common to Hawaii, the Society Islands, the Cook Islands and New Zealand. This established with reasonable certainty that the movement which brought the canoes of the Fleet to New Zealand originated in the Society Islands and simultaneously sent migrants to the Hawaiian and Cook groups. Traditions in New Zealand recorded with a significant unanimity the names of the canoes of the Fleet migration, their landing places, and the tribes which sprang from each. They noted the introduction by the immigrants of the sweet potato (kumara), the taro (Colocasia antiquorum), the gourd (Lagenaria), and the yam (uwhi), both by means of references to incidents of the voyage or by accounts of subsequent return trips to Hawaiki to fetch these plants.

Sweet potato mild mottle virus. [Distribution map].

2009 ◽  
Author(s):  
Keyword(s):  
New Zealand ◽  
Sweet Potato ◽  
Geographical Distribution ◽  
Bemisia Tabaci ◽  
Ipomoea Batatas ◽  
Mottle Virus ◽  
Distribution Map ◽  
Virus Distribution ◽  
New Distribution

Abstract A new distribution map is provided for Sweet potato mild mottle virus, Potyviridae: Ipomovirus. Hosts: sweet potato (Ipomoea batatas). Information is given on the geographical distribution in Africa (Burundi, Kenya, Tanzania, Uganda), Oceania (New Zealand). It is transmitted in a persistent manner by whiteflies, Bemisia tabaci (Hemiptera: Aleyrodidae).

scholarly journals Sweet Potato Purchase Behavior: An Analysis of the Household Decision-Making Process

1969 ◽  
Vol 64 (4) ◽  
pp. 418-423
Author(s):  
C. L. Huang ◽  
J. E. Epperson ◽  
J. M. Law
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Potato Industry ◽  
Purchase Behavior ◽  
Parameter Estimates ◽  
Sweet Potatoes ◽  
Household Decision ◽  
Promotional Efforts ◽  
Household Food Consumption

This report relates sweet potato (Ipomoea batatas Poir.) purchases to the characteristics of the homemaker. The analysis does not obtain parameter estimates of the consumption function for sweet potatoes. Rather, it formulates a series of hypotheses for testing that are suggested by economic theory. A multivariate analysis was applied to the data obtained from a consumer survey regarding purchase of sweet potatoes. The results of this study strongly support the gatekeeper theory in household food consumption. Namely, it was found that the consumer purchases of sweet potatoes were significantly related to the specific characteristics of the homemaker and not those of the household. This study supports the premise that for better understanding of food purchase behavior further inquiry should focus on the role of the homemaker as the primary decision-maker. Findings reveal implications for the sweet potato industry: promotional efforts should be directed towards the young homemaker, emphasizing ease and quickness of preparation.

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