| 中文摘要 |
本研究分春秋雨季使用Ethrel（100, 120, 200, 240, ppm）和Alar（2000, 3000 ppm）兩種植物生長調節物質，處理在自然日照和長日照下栽培之「臺中節瓜」品種胡瓜。在本葉1.5片時，單獨或混合兩種藥品處理一次，獲得植株形態及性型表現之反應。Ethrel和Alar有抑制胡瓜生長之作用，然Ethrel之抑制作用較弱而Alar作用較強。如Ethrel與Alar混合處理，其株高較單獨使用Alar時為矮。Ethrel促進胡瓜雌花連續著生之作用甚強，而單用Alar在本試驗並無促進雌花著生之效果，且有增加雄花數目之趨勢，如Ethrel與Alar混合處理，可增加雌花數目。 |
| 英文摘要 |
The influence of two plant growth regulators, Ethrel and Alar on the growth and se expression of cucumber were investigated in the green house The cucumber cultivar ”Taichung Chekwa” was growing under long day and natural day length. Concentrations were 100~240 ppm for Ethrel and were 2000, 3000 ppm for Alar They were sprayed once on foliage at 1(2/1) true leaf stage. The results were summarized as follows: Comparative effects of these regulators on plant growth were: Control showed the highest, combination of Ethrel and Alar showed the lowest. But on the stem diameter, combination of Ethrel and Alar were the largest than other treatments. Ethrel caused a strong tendency toward pistillate flower production and suppressed staminate flower initiation on treated-pants, and the pistillate flowers developed continuously on leaf axils at lower nodes Alar alone did not promote pistillate flower on treated-plants Alar combined with Ethrel increased pistillate flower and in some cases the were more than that of Ethrel treatment. |
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