Results 141 to 150 of about 578 (167)

PACHYTENE CHROMOSOMES OF THE POTATO (SOLANUM TUBEROSUM, GROUP ANDIGENA)

American Journal of Botany, 1965
The morphology of the pachytene chromosomes of haploids (2 n = 24) of Solanum tuberosum Group Andigena (2 n = 48) is described.
S J Peloquin
exaly   +2 more sources

Genetic variation in the response of andigena potatoes to inorganic fertilizers

Potato Research, 1992
Tuber yield, dry matter and true protein content were studied in 24 andigena potato genotypes. Their performance and response differed greatly and significantly when grown at three levels of inorganic N, P and K fertilizer application. In general, tuber yield and protein content increased with increased fertilizer level, whereas dry matter content ...
M L H Kaul
exaly   +2 more sources

Variation in antioxidant status and productivity in andigena potato clones

Indian Journal of Plant Physiology, 2014
Potato can be a valuable source of antioxidants in the human diet, and genetic variability exists for antioxidant contents. The present study was carried out to evaluate the extent of variability in coloured flesh potatoes from andigena clones. There were significant differences among clones in ascorbic acid, phenols, total carotenoids and anthocyanins.
Devendra Kumar, Priyanka Verma, B. P. Singh   +2 more
openaire   +1 more source

Biogeography and spatio-temporal diversification of Selenidera and Andigena Toucans (Aves: Ramphastidae)

Molecular Phylogenetics and Evolution, 2013
Andean uplift, Plio-Pleistocene climatic fluctuation, and river dynamics in the Amazon basin have all been implicated in the diversification of the South American avifauna. We reconstructed phylogenetic relationships in the genus Selenidera, which has served as a classic case of putative refugial speciation, and the closely related genus Andigena, to ...
Holly L, Lutz, Jason D, Weckstein, José S L, Patané, John M, Bates, Alexandre, Aleixo   +4 more
openaire   +2 more sources

Nitrogen Use Efficiency Characteristics of Andigena and Diploid Potato Selections

American Journal of Potato Research, 2008
Considerable effort has been made to develop management practices to reduce environmental losses of nitrogen (N) from potato production systems. Increasing the efficiency of N utilization by the potato crop is one approach to reducing environmental losses of N.
B. J. Zebarth, T. R. Tarn, H. de Jong, A. Murphy   +3 more
openaire   +1 more source

Heterosis and combining ability ofSolanum tuberosum Group Andigena haploids

Potato Research, 1982
Combining ability analysis was done on a diallel cross of a random sample of four different cultivated diploid potato populations (Solanum tuberosum Group Andigena haploid, Gp. Tuberosum haploid, Gp. Phureja and Gp. Stenotomum) to determine the amount of heterosis and the gene action involved in the inheritance of tuber yield, fresh vine yield, total ...
J. A. Landeo, R. E. Hanneman
openaire   +1 more source

Phoma andigena . [Distribution map].

Distribution Maps of Plant Diseases, 2005
Abstract A new distribution map is provided for Phoma andigena Turkenst. Hosts: Potato (Solanum tuberosum) and other. Information is given on the geographical distribution in Solanaceae, Bolivia, Peru.
openaire   +1 more source

Further sources of resistance toHeterodera rostochiensis woll. in the andigena potatoes

Euphytica, 1970
The Andigena potatoes (Solanum tuberosum ssp.andigena) of the Commonwealth Potato Collection (C.P.C.) were screened for resistance to ‘non-pathotype A’ populations ofHeterodera rostochiensis. Three populations were used: Duddingston (pathotype B), Nocton (pathotype C) and Changed Little Ouse (pathotype C). Resistance was found in C.P.C.
H. W. Howard, C. S. Cole, J. M. Fuller
openaire   +1 more source

Effects of Daylenth on Endogenous Gibberellins in Solanum andigena

Physiologia Plantarum, 1973
AbstractWhen tritiated gibberellin A1 was fed to intact potato plants growing under different daylength conditions it was converted to a more polar acidic metabolite. The rate of metabolism was the same under both long and short day conditions.Attempts were made to obtain information about the possible sites within the cell where gibberellin metabolism
I. D. RAILTON, P. F. WAREING
openaire   +1 more source

Effects of abscisic acid on the levels of endogenous gibberellin-like substances in Solanum andigena

Planta, 1973
Treatment of young, fully expanded leaves of Solanum andigena with synthetic abscisic acid resulted in marked increases in gibberellin-like substances. Abscisic acid treatment caused increases in the gibberellin content of leaves excised from both short day and long day grown plants.
I D, Railton, P F, Wareing
openaire   +2 more sources