楊雯如2006-07-262018-06-292006-07-262018-06-291998http://ntur.lib.ntu.edu.tw//handle/246246/18190稜角絲瓜為暖季東方型蔬菜，生育適溫為20~30℃，目前並沒有耐寒 品系，所以本試驗針對搜集的稜角絲瓜品系，進行秋冬季露地耐寒性篩選 及低溫下花粉活力測定。秋冬季露地栽培期間，85022 品系植株生長勢、 OP 果數及單果中種子數皆優於其他品系，最具耐寒潛力；推測其生殖生 長在寒流來襲時，並未完全受阻。觀察各品系花粉發芽率相對於溫度的變 化，85022 品系花粉在13℃及10℃中培養4 小時後，仍有62.36%及38.27% 的發芽率，其餘各品系及三喜對照品系的花粉發芽率則低。不論是冬季露 地或溫室栽培及夏季田間栽培，85022 品系果長的變化不明顯；而三喜果 長於冬、夏季栽培時相差達50%以上，顯示深受低溫的影響。85022 品系 在冬季露地生長、結果、果實長度、及花粉活力表現出其耐寒潛力。The angled loofah ( Luffa acutangula (L.) Roxb.) is a tropical oriental vegetable, and the best growth temperature are between 20℃to 30℃. There were no chilling tolerance lines identified. The objectives of this study were to screen the angled loofah germplasma for chilling tolerance lines and investigate the pollen viability under low temperature. In the preliminary screen, line 85022 revealed its chilling tolerance potential from the vigor growth, good fruit set (open-pollinated), and seed number per fruit, which might result in less effect of lower temperature towards its reproduction growth. The pollen germination percentage of line 85022 taken after incubating 4 hours at 13℃and 10℃were 62.36% and 38.27%, respectively; while other tested lines were less than 15%. Comparing the fruit length of winter field grown, winter greenhouse grown, and the summer grown angled loofah, line 85022 showed no significant difference; however, San-C carried no winter field grown fruits and the winter greenhouse grown fruits were only 50% in length than summer grown fruits. The growth and fruiting in the winter and pollen germination percentage at lower temperature revealed line 85022 was chilling tolerance.application/pdf26037 bytesapplication/pdfzh-TW國立臺灣大學園藝學系暨研究所稜角絲瓜花粉活力耐寒性angled loofahpollen viabilitychilling tolerancereporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/18190/1/872313B002037.pdf