Registration of ‘AC Skipper’ Navy Bean

Saindon, G.; Mündel, H.‐H.; Huang, Hung Chang

doi:10.2135/cropsci1996.0011183x003600010040x

Cited by 3 publications

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“…Another trait that could be useful for restricting excessive vegetative growth in chickpea is determinate growth habit. There are reports in other legumes on successful exploitation of this trait in cultivar development, e.g., soybean (Cooper et al 2004), common bean (Saindon et al 1996), cowpea (Mligo 1989), mungbean (Sandhu et al 2003), white lupin (Gataulina et al 2005), and pea (Scott and Goulden 1993). In soybean, determinate line resisted lodging under high N fertilization, while the indeterminate check cultivar had high lodging, leading to disease infestation, and substantial yield decreases (Wallace et al 1990).…”

Section: Resultsmentioning

confidence: 99%

An induced brachytic mutant of chickpea and its possible use in ideotype breeding

2007

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Mutations were induced in chickpea (Cicer arietinum L.) cultivar 'JG 315' through treatment of seeds with ethyl methane sulphonate (EMS). One of the mutants, named JGM 1, had brachytic growth (compact growth), characterized by erect growth habit, thick and sturdy stem, short internodal and interleaflet distances and few tertiary and later order branches. It was isolated from M 2 derived from seeds treated with 0.6% EMS for 6 h. Segregation analyses in F 2 progenies of its crosses with normal chickpea genotypes (JG 315, ICC 4929, and ICC 10301) suggested that a single recessive gene controlled brachytic growth in JGM 1. This gene was not allelic to the br gene for brachytic growth in spontaneous brachytic mutant E100YM. Thus, the gene for brachytic growth in JGM 1 was designated br2 and the br gene of E100YM was redesignated br1. Efforts are being made to use JGM 1 in development of a plant type with short internodes and erect growth habit. Such plant type may resist excessive vegetative growth in high input (irrigation and fertility) conditions and accommodate more plants per unit area.

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Section: Resultsmentioning

confidence: 99%

An induced brachytic mutant of chickpea and its possible use in ideotype breeding

2007

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“…Breeder and foundation seed is maintained by HU. In describing these varieties, descriptions of new common bean varieties used by Grafton et al (1993), Kelly et al (1994) and Saindom et al (1996) were adopted.…”

Section: Introductionmentioning

confidence: 99%

Registration of <i>Chercher</i> and <i>Haramaya</i>: Common Bean Varieties for Production in Eastern Ethiopia

Fininsa

Tesso

2007

East African Journal of Sciences

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Two common bean (Phaselus vulgaris L.) varieties: Chercher (STTT-165-96) and Haramaya (G-843) developed by the Haramaya University were released for production in the highlands of Hararghe and similar agro-ecologies in 2005 and 2006, respectively. These varieties were selected and evaluated at 12 environments (locations x years) in eastern Ethiopia between 1998 and 2001. The varieties were described in their phenological and seed characters, yield performance, disease reaction, quality aspect, and adaptation, and compared with the standard and local checks. The varieties have indeterminate bush type growth habit and preferable seed size and color, stable and high yield (1.7 tons ha-1 for Chercher and 2.8 tons ha-1 for Haramaya) across environments, resistance reactions to major fungal and bacterial diseases, and superior canning (Chercher) and food qualities.

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Concerns on Mismatches between Environments of Selection and Production of Crop Varieties in Ethiopia

Keneni¹

2007

East African Journal of Sciences

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Crop production plays a significant role in the Ethiopian economy. The sub-sector's output has, however, been very low partially due to the biophysical challenges constraining productivity in smallholder farms and inadequate technological interventions. Genetic modification of crops to improve productivity is preferred to the continual manipulation of the growing environment because of cost particularly to the large majority of resource-poor farmers who cannot afford for production inputs. Consideration of varietal selection vis-à-vis actual target production environment is vital to maximizing gains from breeding efforts. The tradition across most of the breeding programs in Ethiopia is to develop varieties under optimum management despite the fact that marginal management characterizes the ultimate target production environments. Whether selection under optimum management is likely to result in better productivity gain than under the actual target production environments is a crucial issue in varietal development. This paper discusses the logical framework for breeding success and the conventional approach to varietal selection and its challenges in Ethiopia. Based on the analyses, the paper proposes that the wheel of the current variety development schemes should be redirected and made more objective and focused towards better serving the major target beneficiaries, i.e. the resource-poor farmers.

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Registration of ‘AC Skipper’ Navy Bean

Cited by 3 publications

References 0 publications

An induced brachytic mutant of chickpea and its possible use in ideotype breeding

An induced brachytic mutant of chickpea and its possible use in ideotype breeding

Registration of <i>Chercher</i> and <i>Haramaya</i>: Common Bean Varieties for Production in Eastern Ethiopia

Concerns on Mismatches between Environments of Selection and Production of Crop Varieties in Ethiopia

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