Kaewtaphan, Phissanu

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Kaewtaphan, Phissanu
Alternative Name
Kaewtaphan, P.
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Email
phissanu.ka@kmitl.ac.th

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    Influence of seed moisture content on seed quality of Bambara groundnut (Vigna subterranean L. Verdc)
    (2024-03-01)
    Wongwichaiwat, S.
    ;
    Chotechung, S.
    ;
    Kinnaret, P.
    ;
    Kaewtaphan, P.
    ;
    Anothai, J.
    Two varieties of bambara groundnut (Vigna subterranean L. Verdc) were evaluated for seed quality under different seed moisture contents between 8, 10 and 12%, and the seeds were stored under ambient condition for six months. Songkhla 1 maintained high germination percentage (91.11%) and high germination index (24.43) after storage for six months, whereas TVsu 1221 showed low germination percentage (54.67%) and germination index (14.83) in two months after storage. Differences among seed moisture contents were low and seed moisture content of 12% was better than seed moisture content of 8% for germination percentage and germination index. Variations between bambara groundnut varieties and seed moisture contents were low for shoot length and seedling dry weight. These parameters seemed to be not suitable for evaluation of seed quality of bambara groundnut.
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    Item type:Publication,
    Effect of organic fertilizer rates on grain yield and seed qualities of rice
    (2024-05-01)
    Kaewtaphan, P.
    ;
    Maniin, P.
    ;
    Nilkong, P.
    ;
    Aninbon, C.
    ;
    Teamkao, P.
    The effect of organic fertilizer quantity on the yield and seed qualities of Pathumthani 1 rice revealed that the highest grain yield, 3,893 kg/ha, was attained with the application of 2.24 kg N/ha of organic fertilizer, whereas rice without fertilizer exhibited the lowest yield. However, the application of 1.6 kg N/ha of organic fertilizer resulted in the highest seed germination rate, germination index, and pure seed percentage, with values of 98.00%, 32.43, and 99.71%, respectively. Conversely, applying 2.24 kg N/ha of organic fertilizer yielded the lowest seed germination rate, germination index, and pure seed percentage at 87.50%, 28.74, and 98.11%, respectively. Moreover, the 1.6 kg N/ha rate demonstrated the least inert matter and the lowest number of dead seeds. Consequently, the findings suggested that organic fertilizer should be applied at a rate of 2.24 kg N/ha to achieve high grain yields, while it is still maintained seed germination percentage of over 80%.