Detection of potato spindle tuber viroid in true potato seed by bioassay on Rutgers tomato

1987 ◽  
Vol 64 (5) ◽  
pp. 235-244 ◽  
Author(s):  
M. E. Grasmick ◽  
S. A. Slack
Keyword(s):  
Potato Spindle Tuber Viroid ◽  
Potato Seed ◽  
True Potato Seed

Effect of potato spindle tuber viroid on sexual reproduction and viroid transmission in true potato seed

1986 ◽  
Vol 64 (2) ◽  
pp. 336-340 ◽  
Author(s):  
M. E. Grasmick ◽  
S. A. Slack
Keyword(s):  
Fruit Development ◽  
Seed Weight ◽  
Seed Set ◽  
Transmission Rate ◽  
Pollen Viability ◽  
Polyacrylamide Gel Electrophoresis ◽  
Potato Spindle Tuber Viroid ◽  
Potato Seed ◽  
True Potato Seed ◽  
Viroid Infection

The effect of potato spindle tuber viroid infection on pollen viability, fruit-set, botanical seed set, seed weight, and seed germination in potatoes was determined. Pollen collected from the infected cultivar 'Monona' was less viable than pollen collected from healthy plants. Pollen collected from infected plants reduced seed set significantly but did not reduce fruit development or seed set in all cultivars tested. For some cultivars, infected maternal plants increased the frequency of fruit development and seed weight compared with healthy controls. True potato seed from viroid-infected 'Katahdin' × 'Superior' crosses germinated at a higher rate than did seed from comparable uninfected parents. Progeny from viroid-infected parents that exhibited potato spindle tuber viroidlike symptoms did not always test positive for potato spindle tuber viroid by bioassay or polyacrylamide gel electrophoresis tests. Efficiency of potato spindle tuber viroid detection by bioassay was highest for seedlings 2 weeks after imbibition. Potato spindle tuber viroid was detected in 100% of the progeny tested after true potato seed was stored at 4 °C for 12 years. Tests on selfed true potato seed from the viroid-infected cultivar 'Monona' demonstrated a transmission rate of 100% after subinoculation of initial bioassay plants.

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

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.

Field evaluation of true potato seed progenies in the Philippines

1989 ◽  
Vol 66 (2) ◽  
pp. 109-117 ◽  
Author(s):  
P. Vander Zaag ◽  
B. Susana ◽  
Z. Ganga ◽  
S. Gayao
Keyword(s):  
Field Evaluation ◽  
The Philippines ◽  
Potato Seed ◽  
True Potato Seed

Effect of Gibberellic Acid on the Growth Rate and Physiological Age of Tubers Cultivated from True Potato Seed

2016 ◽  
Vol 36 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Alexios A. Alexopoulos ◽  
Ioannis C. Karapanos ◽  
Konstantinos A. Akoumianakis ◽  
Harold C. Passam
Keyword(s):  
Growth Rate ◽  
Gibberellic Acid ◽  
Physiological Age ◽  
Potato Seed ◽  
True Potato Seed
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