Factors Influencing Early Seedling Vigor of Shrunken‐2 Maize
            <sup>1</sup>

Andrew, R. H.

doi:10.2135/cropsci1982.0011183x002200020015x

Cited by 21 publications

(14 citation statements)

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“…Sweet corn genotypes with either sh2 or sul sel have also been shown to be preferred by consumers in taste panels (Evensen & Boyer, 1986) . Despite the desirable attributes of sh2 and sul sel corn, the utilization of these two endosperm mutations has been hindered by reduced field emergence, seedling vigor and stand uniformity (Styer et al ., 1980 ;Andrew, 1982 ;Douglass et al ., 1993) .…”

Section: Introductionmentioning

confidence: 99%

Variation in sweet corn kernel characteristics associated with stand establishment and eating quality

1996

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A better understanding of the relationships between kernel characteristics associated with eating quality and stand establishment could be helpful in selection of superior genotypes by the sweet corn industry . A set of sweet corn (Zea mays L.) inbred lines with different endosperm mutations (sul, sul sel and sh2) were evaluated for field emergence and seedling growth rate at two locations over two years . Kernel characteristics associated with eating quality (kernel moisture concentration, kernel tenderness, sugars, phytoglycogen and dimethyl sulfide (DMS) concentrations were determined for the same inbreds by laboratory analysis from ears harvested at 18 and 22 days after pollination (DAP) . Amounts of sugars, phytoglycogen and starch were also measured in mature dry kernel samples of the same inbreds . Extensive genetic variability was found among endosperm mutations and among genetic backgrounds within the different endosperm groups for most of the characteristics under study . Most of the kernel attributes associated with eating quality were uncorrelated indicating that selection to improve specific eating quality characteristics can be conducted simultaneously . A negative correlation between field emergence and sugar concentrations in immature kernels suggests that in breeding programs designed to develop germplasm with improved germination and stand establishment, concurrent attention must be given to the fresh quality of the harvested product. This information is of value to breeders and commercial growers for selection of sh2 and sul sel lines with superior field emergence and eating quality.Abbreviations : days after pollination -(DAP), dimethyl sulfide -(DMS)

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Section: Introductionmentioning

confidence: 99%

Variation in sweet corn kernel characteristics associated with stand establishment and eating quality

1996

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“…The sweet taste of their kernels is retained longer after harvest. Despite the desirable attributes of shrunken and sugar enhanced varieties, their production has been hindered by reduced field emergence, seedling vigour and standard uniformity (Styer et al, 1980;Andrew, 1982;Douglass et al, 1993).…”

Section: Sugar Content (%)mentioning

confidence: 99%

Kernel Quality of Some Sweet Corn Varieties in Relation to Processing

Alan¹,

KINACI²,

KINACI³

et al. 2014

Not Bot Hort Agrobot Cluj

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“…Field emergence of these maize types are in the order su>bt-1>sh-2 (Zan & Brewbaker 1999). The poor germination of sh-2 hybrids has been identified as the main factor that has limited its wide acceptance (Andrew 1982;Rowe & Garwood 1978). The reduced emergence is attributed to lower levels of storage carbohydrates and pathogenic fungal infections that thrive on electrolytes leaching out through fractures in the pericarp (Styer & Cantliffe 1984;Tracy & Juvick 1989).…”

Section: Introductionmentioning

confidence: 99%

Factors associated with emergence of Shrunken-2 maize in Korea

2006

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Seventeen supersweet Shrunken-2 (sh-2) maize lines and progenies of their crosses to two sh-2 hybrid testers were investigated for factors responsible for differences in field emergence in Korea in studies carried out in the field, greenhouse and laboratory. The lines and their testcrosses showed significant genetic variation for emergence. Two lines showed significant positive general combining ability (GCA) for emergence while two other lines had significant negative GCA effects. Because none of the specific combining ability effects was significant, emergence was primarily influenced by additive gene action, and could, therefore, be improved by recurrent selection. Seed weight was significantly (P<0·05) correlated with emergence for inbreds (r=0·63) and testcross progeny involving the tester with the lower mean seed weight (r=0·54). Two lines also showed significant positive GCA effects for seed weight. The lines with positive GCA effects for emergence were different from those with positive GCA for seed weight, indicating that factors other than seed weight influence field emergence. The severity of Fusarium infection of seeds of the lines was significantly correlated to germination (r=−0·61, P<0·05) and emergence (r=−0·67, P<0·01), suggesting that practices that prevent pathogenic field infection, such as timely harvest and treatment with fungicides, are crucial for high seed quality. The field emergence of sh-2 inbred parents did not give an indication of emergence in hybrid combinations.

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Factors Influencing Early Seedling Vigor of Shrunken‐2 Maize ¹

Cited by 21 publications

References 0 publications

Variation in sweet corn kernel characteristics associated with stand establishment and eating quality

Variation in sweet corn kernel characteristics associated with stand establishment and eating quality

Kernel Quality of Some Sweet Corn Varieties in Relation to Processing

Factors associated with emergence of Shrunken-2 maize in Korea

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Factors Influencing Early Seedling Vigor of Shrunken‐2 Maize 1

Cited by 21 publications

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Variation in sweet corn kernel characteristics associated with stand establishment and eating quality

Variation in sweet corn kernel characteristics associated with stand establishment and eating quality

Kernel Quality of Some Sweet Corn Varieties in Relation to Processing

Factors associated with emergence of Shrunken-2 maize in Korea

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Factors Influencing Early Seedling Vigor of Shrunken‐2 Maize ¹