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頁籤選單縮合
題名 | 玉米花粉直感效應對籽粒重與果皮性狀表現之影響=Xenia Effect on the Kernel Weight and Pericarp Characters of Maize |
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作者 | 謝光照; | 書刊名 | 臺灣農業研究 |
卷期 | 57:2 2008.06[民97.06] |
頁次 | 頁85-94 |
分類號 | 434.11 |
關鍵詞 | 臺南白; 花粉直感; 籽粒重; 果皮厚度; 果皮含量; Maize; Xenia effects; Kernel weight; Pericarp thickness; Pericarp content; |
語文 | 中文(Chinese) |
中文摘要 | 本研究以人工雜交之台南白8個自交系及其56個全互交當代之F1組合爲材料。種子達生理成熟後採收,於38℃乾燥機中烘乾,然後進行籽粒重及果皮性狀之調查。變方分析結果顯示,種子親植株上的雜交種子其籽粒重、發芽面果皮厚度、非發芽面果皮厚度、果皮含量與平均果皮厚度等性狀,明顯因花粉親及種子親來源的不同而影響當代雜交種子籽粒重及果皮性狀之表現。種子親上的當代雜交種之種子其果皮係由母體之子房壁組織發育而成,由平均果皮厚度與果皮含量的平均值與花粉直感效應值,可看出有許多當代的雜交組合之種子果皮呈現較親本薄且果皮含量明顯較少。可能係因花粉親帶有較多的部份顯性基因,而部份顯性基因具有減少果皮厚度及含量之作用,因此在種子親上的雜交種子其果皮厚度及含量明顯的受花粉直感效應而改變其性狀之表現。 |
英文摘要 | All cross-combinations, excluding the reciprocals, were made among eight inbreding lines isolated from different originated areas of Tainan-white populations. All F1 crosses and eight inbreding lines used as materials were used to study the xenia effect based on the kernel weight and pericarp characteristics. Analysis of variance showed that genotypes, male, female, and male × female interaction were significant different on the pericarp characteristics. In addition, the xenia effects were significant on the kernel weight, as well as thickness and content of pericarp at the same genotype. The expression of xenia effects in kernel weight and might be due to the pollen parents with larger partly-dominant gene than that of the seed parents, and the dominant gene might be the increasing genes. Xenia effects in pericarp thickness and content might be due to the pollen parents with larger partlydominant gene than that of the seed parents, and the dominant gene might be the decreasing genes. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。