Potato production from true potato seed in Italy

2012 ◽  
pp. 266-268 ◽  
Author(s):  
L. Martinetti
Keyword(s):  
Potato Production ◽  
Potato Seed ◽  
True Potato Seed

On-farm Development of Potato Production from True Seed in Indonesia

1992 ◽  
Vol 28 (1) ◽  
pp. 31-39 ◽  
Author(s):  
N. Gunadi ◽  
M. J. Potts ◽  
R. Sinung-Basuki ◽  
Greta A. Watson
Keyword(s):  
Production Systems ◽  
Potato Production ◽  
Production Costs ◽  
Potato Seed ◽  
True Potato Seed ◽  
Yield Difference ◽  
Tuber Crop ◽  
On Farm ◽  
Comparable Quality ◽  
Better Than

SummaryThree seasons of on-farm experimentation to develop potato production from botanical or true potato seed (TPS) under cool fertile conditions in West Java, Indonesia, are described. Twenty-three farmers experimented with two production systems: use of transplants, and use of seedling tubers produced in nursery beds. There was little yield difference between the systems, but an apparent progeny × system × season interaction was observed. All progenies were more resistant to late blight than the present cultivars grown from tubers. Appropriate matching of progeny and system gave seed of comparable quality with, but total yields slightly less than, certified imported seed of cv. Granola. Ware quality was slightly better than that of cv. Granola. Production costs were markedly less than for a tuber crop, making TPS ideal for small, resource-poor farmers.

scholarly journals Transmission Efficiency of Potato virus Y strains PVYO and PVYN-Wi by Five Aphid Species

Plant Disease ◽  
2011 ◽  
Vol 95 (10) ◽  
pp. 1279-1283 ◽  
Author(s):  
A. F. S. Mello ◽  
R. A. Olarte ◽  
S. M. Gray ◽  
K. L. Perry
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Rhopalosiphum Padi ◽  
Potato Production ◽  
Aphid Transmission ◽  
Transmission Efficiency ◽  
Aphid Species ◽  
Age And Growth ◽  
Potato Seed ◽  
True Potato Seed

Potato virus Y (PVY) is a reemerging problem in potato production in North America. Although the “ordinary” strain, PVYO, is still the dominant isolate in U.S. seed potatoes, the recombinant strain of the virus PVYN-Wi (= PVYN:O) has become widespread. An increase in the prevalence of a PVY strain could be due to differences in the efficiency of transmission by aphid vectors. The transmission efficiency by a clone of Myzus persicae was determined for five isolates each of PVYO and PVYN-Wi. An aphid transmission assay was developed based on the use of potato seedlings from true potato seed, allowing for greater control of plant age and growth stage. No apparent differences in transmission by M. persicae were observed. Single isolates of PVYO and PVYN-Wi were tested for their ability to be transmitted from potato to potato by five aphid species: Aphis glycines, A. gossypii, A. nasturtii, M. persicae, and Rhopalosiphum padi. Both PVY isolates showed a similar transmission phenotype in being transmitted efficiently by M. persicae but very poorly or not at all by A. glycines, A. gossypii, and R. padi. The aphid A. nasturtii transmitted both isolates with an intermediate level of efficiency. The data do not support a model for a differential aphid transmissibility being responsible for the increase in the prevalence of PVYN-Wi.

Farmer Experimentation as a Basis for Cropping Systems Research: A Case Study Involving True Potato Seed

1992 ◽  
Vol 28 (1) ◽  
pp. 19-29 ◽  
Author(s):  
M. J. Potts ◽  
Greta A. Watson ◽  
R. Sinung-Basuki ◽  
N. Gunadi
Keyword(s):  
Technology Development ◽  
Cropping Systems ◽  
Potato Production ◽  
Farming System ◽  
Potato Seed ◽  
True Potato Seed ◽  
Systems Research ◽  
Wide Range

SummaryThe radical concept of potato production from true potato seed (TPS) was adopted as a component of their farming system within three seasons by 23 farmers from Cibodas, West Java. The farmers showed an ability to conceptualize and experiment and desired concepts from which they could develop, through research, appropriate principles and field techniques. Information received solely as detailed practices or techniques hindered their progress, since they first needed to repeat the technique in order to understand the concepts and principles involved. Farmer experimentation resembled closely that of experimental station researchers, with the use of replication in space, often neighbouring farmers' plots, and time. Initial experiments covered a wide range of factors but within three seasons farmers had identified similar areas of concern which coincided with those of experiment station researchers worldwide. Farmer experimentation and the role of the researcher in this methodology for technology development are discussed.

POTATO PRODUCTION FROM TRUE POTATO SEED

1994 ◽  
pp. 484-489 ◽  
Author(s):  
L.C. Sikka ◽  
A.S. Bhagari ◽  
J.M. Ssebuliba ◽  
R. Kanzikwera
Keyword(s):  
Potato Production ◽  
Potato Seed ◽  
True Potato Seed

scholarly journals Distribution and incidence of viruses in Irish seed potato crops

2015 ◽  
Vol 54 (2) ◽  
pp. 98-106 ◽  
Author(s):  
F. Hutton ◽  
J.H. Spink ◽  
D. Griffin ◽  
S. Kildea ◽  
D. Bonner ◽  
...  
Keyword(s):  
Potato Virus ◽  
Significant Proportion ◽  
Potato Production ◽  
Weather Data ◽  
Management Approach ◽  
Potato Seed ◽  
Virus Diseases ◽  
Aphid Control ◽  
Daily Weather Data ◽  
Potato Crops

Abstract Virus diseases are of key importance in potato production and in particular for the production of disease-free potato seed. However, there is little known about the frequency and distribution of potato virus diseases in Ireland. Despite a large number of samples being tested each year, the data has never been collated either within or across years. Information from all known potato virus testing carried out in the years 2006–2012 by the Department of Agriculture Food and Marine was collated to give an indication of the distribution and incidence of potato virus in Ireland. It was found that there was significant variation between regions, varieties, years and seed classes. A definition of daily weather data suitable for aphid flight was developed, which accounted for a significant proportion of the variation in virus incidence between years. This use of weather data to predict virus risk could be developed to form the basis of an integrated pest management approach for aphid control in Irish potato crops.

Effect of supplemental nitrogen on true potato seed weight

1987 ◽  
Vol 64 (9) ◽  
pp. 483-491 ◽  
Author(s):  
N. Pallais ◽  
S. Villagarcia ◽  
N. Fong ◽  
J. Tapia ◽  
R. Garcia
Keyword(s):  
Seed Weight ◽  
Potato Seed ◽  
True Potato Seed
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