Apr
6
Cooking quality of the potato as measured by specific gravity
April 6, 2008 | Comments Off
Conclusions The highly significant interaction between seasons and mealiness indicates that a single season/rss test is not a sufficiently
adequate basis for rating the mealiness of a variety.
adequate basis for rating the mealiness of a variety.
The two methods of measuring specific gravity employed in these tests gave approximately the same results. Since the salt
solution method is more rapid, it is preferable to the more laborious method of weighing in air and water.
solution method is more rapid, it is preferable to the more laborious method of weighing in air and water.
The use of salt solutions of known densities was found to be a practical method for making a preliminary selection for mealiness.
The study of large populations can be greatly facilitated by employing this method, since much less time is required than
by the usual cooking method. Furthermore, the material tested may be used later for planting.
The study of large populations can be greatly facilitated by employing this method, since much less time is required than
by the usual cooking method. Furthermore, the material tested may be used later for planting.
- Content Type Journal Article
- DOI 10.1007/BF02879240
- Authors
- C. F. Clark, U. S. Department of Agriculture Washington, D. C.
- P. M. Lombard, U. S. Department of Agriculture Washington, D. C.
- Elizabeth Fuller Whiteman, U. S. Department of Agriculture Washington, D. C.
- Journal American Journal of Potato Research
- Online ISSN 1874-9380
- Print ISSN 1099-209X
- Journal Volume Volume 17
- Journal Issue Volume 17, Number 2 / February, 1940
Mar
6
Potato germplasm collecting expedition to Mexico in 1997: Taxonomy and new germplasm resources
March 6, 2008 | Comments Off
Abstract Wild potato (Solanum sect.Petota) germplasm has been collected in Mexico on nine major expeditions, as determined by 20 collections or more from each expedition
currently at the United States potato genebank, the National Research Support Program-6 (NRSP-6). These have resulted in 609
accessions with good collection data. In addition, NRSP-6 has germplasm of approximately 90 other Mexican collections that
are unspecific regarding date or place of collection. This expedition was funded to collect those remaining collections with
no or little germplasm:Solanum clarum,S. xedinense, S. hintonii, S. hjertingii var.physaloides, S. leptosepalum, S. lesteri, S. macropilosum, S. xmichoacanum, S. xsambucinum, andS. stenophyllidium. In addition, some species and species groups (species groups indicated in parentheses) have unresolved taxonomic problems
that needed clarification by additional field collections. These are (S. agrimonifolium and S.oxycarpum), (S. brachycarpum, S. guerreroense, S. hougasii, andS. iopetalum – theS. brachycarpum complex), (S. fendleri, S. papita, S. stoloniferum – theS. stoloniferum complex),S. leptosepalum, andS. macropilosum. We conducted a wild potato germplasm collecting expedition in Mexico from August 22 to October 31, 1997. Our 103 collections,
71 as germplasm collections, provide the first germplasm samples forS. hjertingii var.physaloides,S. leptosepalum, andS. macropilosum. They provide additional germplasm of the rare speciesS. clarum, S. xedinense, S. lesteri, S. xmichoacanum, S. xsambucinum, andS. stenophyllidium. We additionally gathered germplasm and field data to help resolve taxonomic difficulties inS. agrimonifolium andS. oxycarpum, theS. brachycarpum complex, and theS. stoloniferum complex.
currently at the United States potato genebank, the National Research Support Program-6 (NRSP-6). These have resulted in 609
accessions with good collection data. In addition, NRSP-6 has germplasm of approximately 90 other Mexican collections that
are unspecific regarding date or place of collection. This expedition was funded to collect those remaining collections with
no or little germplasm:Solanum clarum,S. xedinense, S. hintonii, S. hjertingii var.physaloides, S. leptosepalum, S. lesteri, S. macropilosum, S. xmichoacanum, S. xsambucinum, andS. stenophyllidium. In addition, some species and species groups (species groups indicated in parentheses) have unresolved taxonomic problems
that needed clarification by additional field collections. These are (S. agrimonifolium and S.oxycarpum), (S. brachycarpum, S. guerreroense, S. hougasii, andS. iopetalum – theS. brachycarpum complex), (S. fendleri, S. papita, S. stoloniferum – theS. stoloniferum complex),S. leptosepalum, andS. macropilosum. We conducted a wild potato germplasm collecting expedition in Mexico from August 22 to October 31, 1997. Our 103 collections,
71 as germplasm collections, provide the first germplasm samples forS. hjertingii var.physaloides,S. leptosepalum, andS. macropilosum. They provide additional germplasm of the rare speciesS. clarum, S. xedinense, S. lesteri, S. xmichoacanum, S. xsambucinum, andS. stenophyllidium. We additionally gathered germplasm and field data to help resolve taxonomic difficulties inS. agrimonifolium andS. oxycarpum, theS. brachycarpum complex, and theS. stoloniferum complex.
- Content Type Journal Article
- DOI 10.1007/BF02855794
- Authors
- David M. Spooner, University of Wisconsin USDA, Agricultural Research Service, Department of Horticulture 1575 Linden Drive 53706-1590 Madison WI USA
- Antonio Rivera-Peña, Institute Nacional Investigaciones Forestales Agricolas y Pecuarias (INIFAP) Programa Nacional de Papa Suc.“A”, C.P. 52 140 Apdo. Postal 31 Metepec Estado de Mexico Mexico
- Ronald G. van den Berg, Wageningen Agricultural University Department of Plant Taxonomy Generaal Foulkesweg 37 P.O. Box 8010 6700 ED Wageningen The Netherlands
- Konrad Schüler, Institut für Pflanzengenetik und Kulturpflanzenforschung Gatersleben (IPK), Genbank, Auβenstelle Groβ Lüsewitz D-18190 Groβ Lüsewitz Germany
- Journal American Journal of Potato Research
- Online ISSN 1874-9380
- Print ISSN 1099-209X
- Journal Volume Volume 77
- Journal Issue Volume 77, Number 4 / July, 2000