Nitthaisong, Pattama

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Nitthaisong, Pattama
Alternative Name
Nitthaisong, P.
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Email
pattama.ni@kmitl.ac.th

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    Item type:Publication,
    Tiller Number and Flowering Ability on BC1F1 Progeny of Interspecific Hybridization in Ruzigrass (Urochloa ruziziensis)
    (2023-12-14)
    Sidik Prasojo, Yogi
    ;
    Nitthaisong, Pattama
    ;
    Muguerza, Melody
    ;
    Kamphayae, Sukanya
    ;
    Umami, Nafiatul
    The objective of this study focusing on production BC<inf>1</inf>F<inf>1</inf> progeny of interspecific hybridization in ruzigrass (Urochloa ruziziensis) were to evaluate potential of pentaploid BC<inf>1</inf>F<inf>1</inf> hybrid for seed propagation by associating with their tiller number, flowering, and shattering ability. In addition, we evaluate the function of various nitrogen dose on vegetative stages. Eight different genotypes were examined: B. ruziziensis 'Kennedy', B. decumbens 'Basilisk', pentaploid BC<inf>1</inf>F<inf>1</inf> line derived from B. ruziziensis and Mulato (RM), pentaploid BC<inf>1</inf>F<inf>1</inf> line derived from diploid B. ruziziensis and tetraploid B. ruziziensis (RR), and pentaploid BC<inf>1</inf>F<inf>1</inf> lines derived from B. ruziziensis and B. decumbens (RD 1-4). The experimental plants treated with three level of nitrogen fertilizer (0, 4, and 8 kg/10a). Compared with parental line, RM line had high tiller number along with increasing level of nitrogen. For the flowering and shattering ability, the first lines to flowered and shattered was the pentaploid BC<inf>1</inf>F<inf>1</inf> (RD 1-4), RR, and B. decumbens. Pentaploid BC<inf>1</inf>F<inf>1</inf> lines derived from B. ruziziensis and B. decumbens (RD 1-4) had potential for seed propagation by associating with their flowering and shattering ability, while pentaploid BC<inf>1</inf>F<inf>1</inf> line derived from B. ruziziensis and Mulato (RM) had the potential biomass production and yield ability by associating with its tiller number production.
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    Tissue Culture and Somatic Embryogenesis in Warm-Season Grasses—Current Status and Its Applications: A Review
    (2022-05-01)
    Muguerza, Melody Ballitoc
    ;
    Gondo, Takahiro
    ;
    Ishigaki, Genki
    ;
    Shimamoto, Yasuyo
    ;
    Umami, Nafiatul
    Warm-season grasses are C4 plants and have a high capacity for biomass productivity. These grasses are utilized in many agricultural production systems with their greatest value as feeds for livestock, bioethanol, and turf. However, many important warm-season perennial grasses mul-tiply either by vegetative propagation or form their seeds by an asexual mode of reproduction called apomixis. Therefore, the improvement of these grasses by conventional breeding is difficult and is dependent on the availability of natural genetic variation and its manipulation through breeding and selection. Recent studies have indicated that plant tissue culture system through somatic em-bryogenesis complements and could further develop conventional breeding programs by micro-propagation, somaclonal variation, somatic hybridization, genetic transformation, and genome ed-iting. This review summarizes the tissue culture and somatic embryogenesis in warm-season grasses and focus on current status and above applications including the author’s progress.