Read Sweet-Corn Inbreds and Crosses: Released by the Illinois Station (Classic Reprint) - W a 1892- Huelsen | PDF
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Of eggs had reached full size and left the ears of one inbred in 16 days whereas on an selections from these sweet x flour corn crosses have been found.
These are based on the sweet corn gene sugary1 (9 varieties) and the supersweet tropical flint inbred hi27 was converted (minimally 6 backcrosses) to ~120.
Hence, with a view to strengthen sweet corn breeding program and to accelerate the pace of progress of sweet corn improvement program, our study has been designed to assess genetic diversity and population structure of sweet corn inbreds using several morphological and biochemical traits in combination with microsatellite markers.
Simply, inbred lines a and b made one cross, lines c and in origins of agriculture: maize, or corn.
The crosses between parents were done at in 2016, two sweet corn inbred it was found that both sweet corn x dent corn hybrids had greater values than those.
The parental lines, crosses and one check hybrid cultivar were evaluated under el-minia (middle egypt) growing conditions.
Sixty new supersweet (bt) inbreds were selected with superior tenderness for evaluation in single-cross hybrids with parents of commercial hawaiian hybrids. Genetic studies: isogenic inbreds for the four major types of sweet corn (bt, sh2, bt2 and su) were developed and intercrossed to determine quality differences.
Assessment of genetic diversity is a pre-requisite to broaden the genetic background of cultivated base of sweet corn, an endosperm mutant of field corn that alters starch biosynthesis pathway in endosperm. In the current investigation, genetic divergence among 39 inbred lines was assessed on the basis of 14 agro-morphological traits, two quality parameters and 63 microsatellite markers.
Sweet-corn inbreds and crosses released by the illinois station by walter august huelsen.
This cross may also be used to decrease the days-to-maturity of my popcorn. The andean race of corn contains low genetic diversity, but it moved.
Challenges, including ear type and unusual products that include sweet corn milk, sweet sweet inbreds like p39 and p51 (marvelous parents of golden cross.
The 1981 analysis revealed significant gca and sca effects for the sweet corn diallel. Those analyses in years with very low aflatoxin contamination yielded nonsignificant gca effects. Two or three inbreds within each set performed well enough as single crosses to be used as sources of resistance in breeding populations.
The inbred lines 101su and 101bt were developed from the cross between sumlee esarn population and a white kernel super sweet population (fig.
Crosses between susceptible and resistant inbreds gave resistant hybrids; and that crosses between resistant inbreds gave resistant hybrids. They also reported that hybrid vigor is responsible for some resistance. Wellhausen (^p, 20) made genetic studies on resistance in 56 inbred lines of field, flint, and sweet corn, and 14 crosses made.
To test this hypothesis, a number of test crosses were made with candidate sweet corn hybrids, sweet corn inbreds, and field corn inbreds, and evaluated for their response to nicosulfuron and mesotrione. Based on our results, a common genetic basis for sensitivity to nicosulfuron and mesotrione is prevalent in commercially-adapted sweet corn.
They rolled up their sleeves and looked at tens of thousands of inbreds sometimes to find one or two good working inbred lines.
Eighty one super sweet corn hybrids were produced using partial dialled crosses of two groups of nine s4 inbred.
Important types of corn cultivars are inbreds, single-cross hybrids, double-cross hybrids, and various kinds of populations.
The field by sweet corn hybrids, the populations, the inbreds and the target hybrids were evaluated under cold conditions. Estimates of the mean frequencies of four classes of loci in the populations, and six estimators of favorable alleles (lp l μ', ptc, ubnd, ni, png g and png ceg ) and gca were computed.
Crossed onto super sweet corn inbreds; agsh2-201, agsh2-306; and a single cross, agsh2-201/agsh2-318 to transfer genes for pericarp tenderness and eating quality into super sweet lines. The resultant crosses were subsequently backcrossed onto the corresponding super-sweet lines and so three bc1f1 were obtained.
However, being a highly cross-pollinated crop, some amount of heterozygosity remain inherent in many inbred lines during the course of maintaining.
Of the thousands of crosses they make in the field each year, only a few ever result in a commercial variety.
The f2 generation of the cross of sweet corn inbreds with cr1 also were produced by self-pollinating f1 plants. Responses to nicosulfuron and mesotrione were assessed in field trials in 2006 for inbreds, hybrids and progeny from the various crosses.
This is the type of maize in which still no definitive heterotic patterns have been determined, and so getting to know genetic divergence of the sweet corn inbred lines is of great importance for its breeding. In this paper we analyzed genetic distance of six sweet corn inbreds based on rapd markers.
A seed corn grower does not plant a variety but rather 2 inbreds that cross to produce the seed of a variety.
May 24, 2019 about 9,000 years ago, maize, or corn, was domesticated from teosinte in the a pistil-expressed pectin methylesterase confers cross-incompatibility 18, 2018 — when two maize inbred lines are crossed with each othe.
A single cross hybrid corn variety is the cross of two inbred plants, each of which ear-fresh husk color: the color of the husks 1 to 2 weeks after pollination.
In egypt, field corn is growing well and fully adapted with the egyptian environment however, it lacks sweetness which could be found in sweet corn. The main objective of this study is to evaluate the genetic parameters in two different sweet-field.
The se1se1 crosses were earlier, had a higher emergence, illinois sweet corn inbreds with the use genotype.
Ten early sweet corn inbred lines were studied for estimating components of genetic upon the particular interaction of inbred lines involved in the crosses.
Each seed produced from crossing two inbreds has an array (collection) of alleles from each parent.
Agris determination of some agronomic performance in crosses between dent corn inbreds and sweet corn inbreds [2017].
Sweet-corn inbreds under contract to seedsmen who make a specialty of sweet corn, employ trained breeders, and have the necessary drying equipment. These seedsmen are then supervised by station representa tives over a three-year period. Since most of the sweet-corn seed is now produced in idaho under.
Data are presented on the percentage germination of seed of inbreds and hybrids stored from three to seven years. In general the longevity of the seeds of hybrids was better than that of the parents. Crosses between inbreds with good longevity of seed had good longevity of seed, and hybrids between inbreds with much shorter longevity of seed.
The field corn inbreds belong to diverse heterotic groups, and the three su1su1se1se1sh2sh2 sweet corn inbreds, il27a, i453 and p39, have been released from three populations that represent the variability of modern sweet corn in temperate areas (revilla and tracy 1995). The 30 sweet field corn crosses were obtained in 1999 and the resulting.
Sweet corn results from a mutation at the sugary locus (su), which causes the endosperm of the seed to accumulate twice as much sugar as field corn. New mutants (sh2 and se) have been developed to improve sweet corn’s sweetness and other qualities.
Sweet corn inbreds production of crossed sweet corn seed bossed eet corn has been increasing rapidly in popularity since its introduction by this station in 1926. A survey just completed shows that there, were more than 2,761,000 pounds of hybrid seed pro- ducted last year.
Eleven european and american field corn inbreds adapted to northwestern spain, were crossed to seven sweet corn inbreds that were parents of seven sweet corn hybrids. The inbreds and the crosses field x sweet corn were evaluated separately in field trials at two locations in northwestern spain in 1993 and 1994.
The bulletin summarizes the whole of the sweet corn breeding work which has now been in progress for 18 years at the illinois agricultural experiment station. The true value of single crosses was shown in two severe drought years when well-adapted crosses showed smaller variations in annual yields than open-pollinated strains.
In order to better understand sweet corn germplasm, 43 historically important sweet corn inbreds and three dent corn inbreds were examined by pedigree information, restriction fragment length.
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