Postharvest Longevity of Cut-flower Gerbera. II. Heritability of Vase Life

Wernett, Heidi C.; Wilfret, Gary J.; Sheehan, Thomas; Lyrene, P. M.; Martin, F. G.; White, Timothy L.; Powell, Gregory L.; Wilcox, C.J.

doi:10.21273/jashs.121.2.222

Cited by 11 publications

(14 citation statements)

References 7 publications

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“…Thus, one should be able to make gains from selection; however, gains will likely be small and progress slow. Existence of significant additive gene effects on A. majus cut flower PHL is in agreement with findings on Gerbera (De Jong and Garretsen, 1985;Wernett et al, 1996b); Petunia x hybrida (Krahl andRandle, 1999), andTulipa (van Eijk andEikelboom, 1980). Although scaling tests (Table 2) indicate an additivedominance model is adequate to explain the observed variation in PHL of A. majus, there is strong evidence of digenic or higher order epistatic interactions.…”

Section: Discussionsupporting

confidence: 87%

“…Midparent , 1998) and higher than the 28% to 46% heritability estimates on Gerbera cut flowers postharvest (Harding et al, 1981;Wernett et al, 1996b). Narrow sense heritability estimate of 30% on A. majus is within the range of the 15% to 38% narrow sense heritability estimates reported on Gerbera cut flowers (Harding et al, 1981(Harding et al, , 1987Serini and De Leo, 1978;Tesi, 1978;Wernett et al, 1996b). Thus, one should be able to make gains from selection; however, gains will likely be small and progress slow.…”

Section: Discussionmentioning

confidence: 90%

“…Recent research has redirected selection and breeding to improve cut flower PHL. Studies on Gerbera (De Jong and Garretsen, 1985;Harding et al, 1981;Wernett et al, 1996aWernett et al, , 1996b, Lilium L. Asiatic hybrids (van der Meulen-Muisers et al, 1998), Petunia ×hybrida Vilm. (Krahl and Randle, 1999), and Tulipa ×hybrida (van Eijk and Eikelboom, 1980) have implied cut flower PHL is a heritable trait with moderately low narrow sense heritability and significant additive gene effects.…”

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confidence: 99%

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Genetic Analysis of Cut-flower Longevity in Antirrhinum majus

Schroeder¹,

Stimart²

2001

jashs

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Genetics of Antirrhinum majus L. (snapdragon) cut flower postharvest longevity (PHL) was investigated by generation means analysis using a white short-lived inbred (WS) and white long-lived inbred (WL) to determine mode of inheritance and heritability. Broad and narrow sense PHL heritability was estimated at 78% and 30%, respectively. Scaling tests for adequacy of an additive-dominance model in explaining PHL inheritance suggested absence of epistasis. However, joint scaling indicated digenic or higher order epistatic interactions. Fitting of a digenic epistatic model revealed significant additive effects and nonsignificant dominance and epistatic interactions. Additionally, based on sequential model fittings all six parameters [mean, additive (a), dominance (d), a×a, d×d, and a×d] proved necessary to explain observed PHL variation. Continuous variation for PHL observed in the F2 and backcross generations suggests PHL is quantitative. Assessment of associated traits revealed a positive relationship between number of flowers opening postharvest on a cut flower and PHL. In addition, floret wilting led to short PHL while floret browning was associated with long PHL.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 90%

mentioning

confidence: 99%

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Genetic Analysis of Cut-flower Longevity in Antirrhinum majus

Schroeder¹,

Stimart²

2001

jashs

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“…Genetic variance components, of greater immediate utility for improving PHL, have been reported in: A. majus (Schroeder and Stimart, 2001), Dendrobium cultivars (Bobisud and Kamemoto, 1982), Gerbera sp. (Muceniece et al, 1978;Wernett et al, 1996a), Lilium sp. (van der Meulen-Muisers et al, 1998, Rosa cultivars (De et al, 1999), and Tulipa sp.…”

mentioning

confidence: 99%

Early Generation Evaluation in Antirrhinum majus for Prediction of Cutflower Postharvest Longevity

Martin¹,

Stimart²

2003

jashs

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On-plant floret longevity and cutflower postharvest longevity (PHL) of Antirrhinum majus L., snapdragon, were evaluated using inbreds P1 (16 day PHL) and P2 (6 day PHL), F1 (P1 × P2), F2 (F1 self-pollinated), F2 × F2 (among and within PHL categories: long, 17 to 25 days; middle, 9 days; and short, 2 to 3 days), and F3 families (F2 self-pollinated). F2 on-plant floret longevity and PHL correlated to later generation PHL. Prediction of progeny PHL from F2 × F2 matings appears feasible if genotypic value for PHL of F2 is known. Selection for PHL is best based on evaluation of multiple cutflowers per genotype. Significant additive and dominant genetic variance components contribute to PHL.

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“…Although an attractive floral display is a primary goal of breeding in many ornamental crops, research on floral longevity has focused primarily on postharvest longevity in cut flowers. Narrow-sense heritability estimates were found at 0.66 to 0.88 (Weber et al, 2005) and 0.79 to 0.81 (Martin, 2002) in Antirrhinum majus, 0.51 to 0.59 in Dianthus caryophyllus (Burchi et al, 1999), 0.80 in Rosa ·hybrida (De et al, 1999), 0.74 in Lilium (Van der Meulen-Muisers et al, 1999), 0.28 in Gerbera ·hybrida (Wernett et al, 1996), and 0.00 to 0.38 in Gerbera jamesonii (Harding et al, 1981). Significant levels of general (P < 0.001) and specific combining ability (P < 0.046) were also reported for Lilium (Van der Meulen-Muisers et al, 1999).…”

mentioning

confidence: 99%

Diallel Analysis of Floral Longevity in Impatiens walleriana

Howard¹,

Stimart²,

León³

et al. 2012

J. Amer. Soc. Hort. Sci.

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Impatiens (Impatiens walleriana) are currently among the most valuable and widely cultivated floriculture crops in the world. Attractive floral display is a primary goal for breeders of impatiens. Although breeders have selected for this trait, little consideration has been given to floral longevity as a means to increase the floral display of bedding crops. In this study, 259 commercial inbred lines of impatiens were grown in a greenhouse and evaluated for floral longevity as defined by the time between when a flower was completely open to when all of the petals abscised from the pedicle. Mean floral longevity of inbreds ranged from 3.3 ± 0.4 to 15.8 ± 2.5 days. Twelve inbreds (six with long floral longevity and six with short floral longevity) were chosen and crossed in a half diallel to create 66 hybrids that were analyzed for floral longevity in three greenhouse environments. Mean floral longevity of hybrids across greenhouse environments ranged from 2.8 ± 0.4 to 14.1 ± 2.8 days. Significant general (GCA) and specific (SCA) combining abilities for floral longevity were detected. GCA mean squares were 37 times larger than SCA mean squares, revealing that additive genetic effects play a more important role in the inheritance of floral longevity in impatiens. This information, coupled with the significant amount of variation for floral longevity among inbreds, indicates that there is good potential for breeding for floral longevity in impatiens to improve the floral display of hybrids.

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Postharvest Longevity of Cut-flower Gerbera. II. Heritability of Vase Life

Cited by 11 publications

References 7 publications

Genetic Analysis of Cut-flower Longevity in Antirrhinum majus

Genetic Analysis of Cut-flower Longevity in Antirrhinum majus

Early Generation Evaluation in Antirrhinum majus for Prediction of Cutflower Postharvest Longevity

Diallel Analysis of Floral Longevity in Impatiens walleriana

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