Breaking Strength of Pedicel and Grain Shattering Habit in Two Species of Buckwheat (<i>Fagopyrum</i>spp.)

Oba, Shinya; Suzuki, Yuusuke; Fujimoto, Fumihiro

doi:10.1626/pps.1.62

Cited by 14 publications

(10 citation statements)

References 2 publications

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“…Buckwheat never accomplished the status of vital crop for cultivation and was never widely adopted, in spite of all its interesting potentials. Obstacles behind the limited conventional breeding are its strong self/cross incompatibility (Neskovic et al 1995), flower abortion (Morris 1951), low seed set, seed shattering (Oba 1998), uncertain sort of growth and blooming, lodging and its susceptibility to spring and fall frost. Vegetative propagation through cuttings or other conventional methods has not been successful in buckwheat.…”

Section: Introductionmentioning

confidence: 99%

Plant Regeneration in Buckwheat (Fagopyrum esculentum Moench.) via Somatic Embryogenesis and Induction of Meristemoids in Abnormal Embryos

Saraswat

Kumar

2019

Plant Tissue Cult. & Biotech.

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An efficient in vitro regeneration protocol is reported for common buckwheat. A combination of 0.5 mg/l 2,4-D and 0.2 mg/l BAP with sucrose showed highest induction of somatic embryogenesis from cotyledon and hypocotyl explants. More than 35% of normal somatic embryos matured on MS. MS with 2% sucrose were found best for germination and conversion of somatic embryos to plantlets. In tissue culture, abnormal somatic embryos usually occur. In this report, abnormal embryos are also used to induce shoot organogenesis, adding to the number of final regenerants and ensuring full utilization of regenerative propagules. A treatment of 0.2 mg/l BAP induced meristemoids in 60% of underdeveloped embryos and a combination of 0.5 mg/l BAP and 0.5 mg/l AgNO3 led browning and senescence-free progression of shoot buds to well developed shoots, which were subsequently rooted in half strength MS containing 2% sucrose and 0.25 mg/l IBA. The regenerated plants survived acclimatization, flowered and set seeds. Plant Tissue Cult. & Biotech. 29(1): 33-47, 2019 (June)

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Section: Introductionmentioning

confidence: 99%

Plant Regeneration in Buckwheat (Fagopyrum esculentum Moench.) via Somatic Embryogenesis and Induction of Meristemoids in Abnormal Embryos

Saraswat

Kumar

2019

Plant Tissue Cult. & Biotech.

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“…When a grain ripened and became black, the grain was collected from the base of the pedicel. The breaking tensile strength of the grains was measured by the method of Oba et al (1998) immediately, after collected from the plants. The pedicel of the grain was held on a tension gauge, and the grain was pulled in a direction parallel to the axis of the pedicel, until the grain was detached from the pedicel.…”

Section: Methodsmentioning

confidence: 99%

“…The measurement of breaking strength of pedicel is a useful technique for evaluating the grain shedding habit of buckwheat species. The breaking strength in tartary buckwheat tends to be weaker than that in common buckwheat (Oba et al, 1998), and autotetraploid buckwheat showed less grain shedding than diploid strains (Oba et al, 1999;Fujimura et al, 2001). In this study, we investigated the genetic variation of the grain shedding habit, morphological characters and polyploidy level in 60 tartary buckwheat strains, and discuss the relationship among these traits.…”

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confidence: 99%

Association of Grain Shedding Habit with Polyploidy in Tartary Buckwheat (Fagopyrum tataricum) Strains

Oba¹,

Fujimura²,

Horiuchi³

2004

Plant Production Science

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“…As buckwheat easily shatters and is resulting in yield loss Suzuki 2017, Suzuki et al 2012a), shattering resistant cultivars are required. The two cultivated species of buckwheat (F. esculentum and F. tartaricum) do not have an abscission layer across the pedicels (Oba et al 1998). Therefore, pedicel breaking is the most important cause of shattering.…”

Section: Shattering Resistancementioning

confidence: 99%

Important agronomic characteristics of yielding ability in common buckwheat; ecotype and ecological differentiation, preharvest sprouting resistance, shattering resistance, and lodging resistance

Morishita

Hara

2020

Breed. Sci.

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Common buckwheat is recognized as a healthy food because its seed contains large amounts of protein, minerals, and rutin. However, the yielding ability of common buckwheat is lower than that of other major crops. The short growing period, moisture injury, occurrence of sterile seeds due to lack of flower-visiting insects, and yield loss due to lodging and shattering cause low and unstable grain yield. Therefore, many common buckwheat breeders have tried to increase yielding ability by improving various characteristics. Recently, new breeding objectives for improving yielding ability by increasing preharvest sprouting resistance; reducing shattering loss; introducing self-compatibility; the ecotype, and semidwarf have been reported. In this review, we introduce the research on the important agronomic characteristics, preharvest sprouting resistance, ecotype and ecological differentiation, shattering resistance, and lodging resistance in common buckwheat.

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Breaking Strength of Pedicel and Grain Shattering Habit in Two Species of Buckwheat (Fagopyrumspp.)

Cited by 14 publications

References 2 publications

Plant Regeneration in Buckwheat (Fagopyrum esculentum Moench.) via Somatic Embryogenesis and Induction of Meristemoids in Abnormal Embryos

Plant Regeneration in Buckwheat (Fagopyrum esculentum Moench.) via Somatic Embryogenesis and Induction of Meristemoids in Abnormal Embryos

Association of Grain Shedding Habit with Polyploidy in Tartary Buckwheat (Fagopyrum tataricum) Strains

Important agronomic characteristics of yielding ability in common buckwheat; ecotype and ecological differentiation, preharvest sprouting resistance, shattering resistance, and lodging resistance

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