scholarly journals Correlation between Early and Late Growth Characters in an Improved True Potato Seed Population

HortScience ◽  
1992 ◽  
Vol 27 (4) ◽  
pp. 350-352 ◽  
Author(s):  
A. Golmirzaie ◽  
F. Serquen
Keyword(s):  
Solanum Tuberosum ◽  
Mature Plant ◽  
Potato Seed ◽  
True Potato Seed ◽  
Hypocotyl Length ◽  
Seedling Traits ◽  
Seed Population ◽  
Reproductive Characters ◽  
Late Growth ◽  
Growth Characters

A field experiment was conducted at two locations to determine the correlation between seedling and mature plant characters in a large potato (Solanum tuberosum) population developed for production from true potato seed. There was no significant correlation between seedling and reproductive characters, including earliness, at the two locations. Number of internodes and yield per plant were significantly correlated at Huancayo, and at San Ramon, root length and hypocotyl length had a significant correlation with the number of tubers per plant and yield per plant. Although significant, the latter correlations are not high enough to be used to predict the final behavior of genotypes by their seedling traits. Thus, it may be assumed that a certain independence between seedling and mature plant growth characters exists.

Synaptic mutants in potato, Solanum tuberosum L. I. Expression and identity of genes for desynapsis

Genome ◽  
1988 ◽  
Vol 30 (5) ◽  
pp. 664-670 ◽  
Author(s):  
E. Jongedijk ◽  
M. S. Ramanna
Keyword(s):  
Solanum Tuberosum ◽  
Potato Breeding ◽  
Solanum Tuberosum L ◽  
2N Gametes ◽  
Solanum Species ◽  
Potato Seed ◽  
True Potato Seed ◽  
Recessive Inheritance ◽  
Potential Value ◽  
Specific Influence

For tuber-bearing Solanum species, six monogenic recessive synaptic mutants, designated sy-1, sy-2, sy-3, sy-4, ds, and dsc have been reported in the literature. In the present investigation no indication for the existence of the mutant sy-1, affecting megasporogenesis only, was found. The mutant ds was confirmed to display typical desynaptic behaviour in microsporogenesis and shown to similarly affect megasporogenesis. It furthermore proved to be allelic to the mutants sy-3 and dsc. It is proposed that the mutants sy-3, ds, and dsc be uniformly designated ds-1, whereas the remaining mutants sy-2 and sy-4 (possibly identical) may be designated simply as synaptic mutant until their actual identity has been established. The observed F1 segregations generally support monogenic recessive inheritance of ds-1. However, in one cross progeny the expected mutant phenotype was not clearly expressed in contrast with its reciprocal, which might indicate cross-specific influence of the cytoplasm on ds-1 expression. The potential value and limitations of desynaptic (ds-1ds-1) mutants for potato breeding and true potato seed production are discussed.Key words: Solanum, (de)synaptic mutants, microsporogenesis, megasporogenesis, 2n gametes.

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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