For a long time, genetic algorithms have been recognized as a new method to solve difficult and complex problems and the performance of genetic algorithms depends on genetic operators, especially crossover operator. Various problems like the traveling salesman problem, the transportation problem or the job shop problem, in logistics engineering can be modeled as a sequencing problem This paper proposes modified genetic crossover operators to be used at various sequencing problems and uses the traveling salesman problem to be applied to a real world problem like the delivery problem and the vehicle routing problem as a benchmark problem Because the proposed operators use parental information as well as network information, they could show better efficiency in performance and computation time than conventional operators.

“Saesangjubyeo” is a japonica rice cultivar developed from the cross between “Junghwabyeo” and “Sambaegbyeo” at the Sangju Substation of National Yeongnam Agricultural Experiment Station, R.D.A in 2001. “Saesangjubyeo” is early matured with July 28 at the

A new light pink colored standard rose (Rosa hybrida Hort.) cultivar “Temperla” was developed at the Jeollanamdo Agricultural Research and Extention Services (JARES) after seedling and line selection in 1999, and its characteristics were examined two time

A new orange-red colored standard rose (Rosa hybrida Hort.) cultivar ‘Scarla’ was developed at the Jeollanamdo Agricultural Research and Extention Services (JARES) after bud selection and line selection for three times from 1999, and its characteristics w

Inweolbyeo is a japonica rice (Oryza sativa L.) variety developed by Unbong Substation, National Honam Agricultural Experiment Station, RDA in 1998. It was selected from progenies from a cross between Fukei 127 and Unbongbyeo by pedigree breeding method.

“Jinpumbyeo” is a new japonica rice cultivar developed from a cross between lodging tolerant semi-dwarf plant type, SR14703-60-5-GH1 and high eating quality cultivar Suweon353 by the rice breeding team of National Crop Experiment Station, RDA made in 1987

“Sobibyeo” is a new japonica rice cultivar developed from a cross betw een Hwayeongbyeo and YR13604Acp22 line by the rice breeding team of National Honam Agricultural Experiment Station (NHAES), RDA, in 1999. This cultivar has a large grain and about 119

“Surabyeo” is a new japonica rice cultivar developed from a backcrossed combination between the F1 of “Suweon 345/ Kanto PL4” and “Suweon 345” of lodging tolerant, semi-dwarf, high-quality rice line by the rice breeding team of National Crop Experiment St

“Saechucheongbyeo” is a new japonica multiline for blast resistance, which was composed of equal proportions in seed weight of three near-isogenic lines of two combinations. The recurrent parent, “Chucheongbyeo”, was a high-quality rice cultivar with susc

Kwanganbyeo is a japonica rice variety developed from the cross between Namyang 7 and SR14779-HB234-31, anelite line derived from the cross between Cheonmabyeo and Aichi 37 at the National Crop Experiment Station, RDA, and washi-tecture and light-dark gre

Anseongbyeo is a japonicaseed weight of three near-isogenic lines of blast resistance. The recurrent parent, Suweon345, was a high-quality and semi-dwarf rice cultivar with susceptability to neck blast. The blast-resistance donors for each liens were SR12

Andabyeo, a new Tongil-type rice (Oriza sativa L.) cultivar, is developed by the rice breeding team of National Cropbetween SR11532-4 and SR14502F2. This cultivar has about 115 days of growth duration from seeding to heading and is semi-dwarf (culm length