Details for: PI 629293, Zea mays L. subsp. mays, ESCT-1A-C2


Summary Data
Taxonomy:
Zea mays L. subsp. mays
Top Name:
ESCT-1A-C2
Origin:
Developed – Colorado, United States
Maintained:
Historic Record
Received by NPGS:
14 Mar 2002
Improvement Status:
Breeding material
Reproductive Uniformity:

Population
Form Received:
Seed
Life Form:
Annual
Life Cycle:
Annual
Availability
This is historical information about this accession. It no longer exists and can not be requested.
 
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KERNELS

Core Passport Data
Taxonomy:
Zea mays L. subsp. mays
Top Name:
ESCT-1A-C2
Origin:
Developed – Colorado, United States
Maintained:
Historic Record
Received by NPGS:
14 Mar 2002
Improvement Status:
Breeding material
Reproductive Uniformity:

Population
Form Received:
Seed
Life Form:
Annual
Life Cycle:
Annual
Source History
Developed

Colorado, United States

Developer(s):
Donated
14 March 2002.
Colorado, United States

Donor(s):
Accession Names and Identifiers
ESCT-1A-C2
Type: Developer identifier
Cuany, Robin L. Colorado State University

Narrative
Mass selection among the Syn1 plants in summer of 1979 led to three sub-populations: early maturing large-eared (1A), late maturing large-eared (1C), and an intermediate group (1B), which was later discarded. Over 70 ear-row progenies of each sub-population, seeded 4/22/80, experienced four weeks of cool (7-15 deg C) moist conditions, ideal for cold tolerance selection. Data were gathered on emergence, seedling growth, and later on silk-date. On these criteria 30 progenies were selected in 1A and 30 in 1C for sib-pollination and crossing to testers. Yield and maturity data were taken, and a second phase of selection was based on this and on germination tests of testcross seed on moist blotters at 10 deg.C. Thus 20 families were selected in each sub-population for 1981 summer recombination, as ESCT-1A-C1 and ESCT-1C-C1, to complete the first cycle. Plantings in April in Fort Collins and May in Center (San Luis Valley) in 1982 had equivalent maximum and minimum air temperatures: 17 to -1 in FC and 17 to -2 deg C in SLV. In each place 72 ear-rows from each synthetic were planted for emergence and seedling height or weight selection. Forty families from each, rated as superior, were sibbed and test crossed by the hybrid tester A638 x CQ83). Further selection down to 30 was done on the testcross seed, analyzed by electrolyte leakage at 9 deg C compared with 22 deg C. Final choice on yield and ear size in the ear-rows resulted in 20 selections each to form ESCT-1A-C2 and ESCT-1C-C2. The Syn1 of Cycle 2 in 1984 was brought to Syn2 in isolated crossing blocks in 1985. Yield tests were done in 1986 and 1987 and showed no difference from ESCT-1, except in time of maturity, with 1A about 2 days earlier and 1C about 1 day later.
Zea mays L. subspp. mays
Genus:
Zea
Family:
Poaceae (alt. Gramineae)
Subfamily:
Panicoideae
Tribe:
Andropogoneae
Subtribe:
Tripsacinae
Nomen number:

311987
Verified:
07/15/1987 by ARS Systematic Botanists.
Other conspecific taxa
Zea mays L. (1531 active accession[s])
Zea mays L. subsp. huehuetenangensis (H. H. Iltis & Doebley) Doebley (6 active accession[s])
Zea mays L. subsp. mexicana (Schrad.) H. H. Iltis (128 active accession[s])
Zea mays L. subsp. parviglumis H. H. Iltis & Doebley (250 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Autonym(s)
Zea mays L. var. mays

Heterotypic Synonym(s)
Common names
LanguageNameAlternate namenoteseqCitation
Englishcorn  1Rehm, S. 1994. Multilingual dictionary of agronomic plants
Englishdent corn  1Terrell, E. E. et al. 1986. Agricultural Handbook no. 505
Englishfield corn  1Terrell, E. E. et al. 1986. Agricultural Handbook no. 505
Englishflint corn  1Terrell, E. E. et al. 1986. Agricultural Handbook no. 505
Englishmaize  1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
Englishpod corn  1Terrell, E. E. et al. 1986. Agricultural Handbook no. 505
Englishpopcorn  1Terrell, E. E. et al. 1986. Agricultural Handbook no. 505
Englishsweet corn  1Terrell, E. E. et al. 1986. Agricultural Handbook no. 505
Arabicdura shami  2Boulos, L. 1999-. Flora of Egypt
Chineseyu shu shu玉蜀黍 2Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition).
Frenchmaïs  2Demilly, D. et al. 1996. Liste alphabétique des principales espèces de plantes cultivées et de mauvaises herbes. Noms latins et noms français, ed. 6. Note: GEVES-SNES, Beaucouzé, France
GermanMais  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Italiangranoturco  2International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
Italianmais  2International Seed Testing Association. 1982. A Multilingual Glossary of Common Plant-Names 1. Field crops, grasses and vegetables, ed. 2.
Japanese Rōmajitō-morokoshi  2Batra, L. R. 1995. Names of Japanese plants sorted by their Japanese names in Romanized Katakana and scientific nomenclature
Portuguesemilho  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanishmaíz  2Rehm, S. 1994. Multilingual dictionary of agronomic plants
Swedishmajs  2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Koreangangnaengi  2Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:134.
Transcribed Koreanogsusu  2Lee, Y. N. 1997. Flora of Korea.
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  • Inactivated Accession: Cannot be maintained further. Failure of seed germination. 13 Dec 2024.
Pathogens
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Citations
Pedigree
Description:
During 1969-1986 several cycles of recurrent selection were performed on a germplasm base (U.S., Andean, and European) and named Cold Tolerant Composite, CTC-1. Phenotypic recurrent selection for field cold-tolerance in early spring plantings and early silking for 4 cycles was followed by 3 cycles of progeny test selection using seedlings in growth chambers at 4.5 deg-15.5 deg daily range. Some tests were for general combining ability for cold-tolerance in diallele, and topcrosses to the Swiss variety Rheintaler. Some of these were added to the breeding pool, and this recombination became this selection in 1978.