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1.试验表明我们所栽培的紫苏、苍耳、和盐蒿都是严格的短日性植物。黑眼菊、菠菜和车前是长日性植物;而这几种植物当中,只有黑眼菊对赤霉素的反应灵敏,在绝对的短日条件下,赤霉素能导致其开花。 2.高夜温(例如30℃)能改变黑眼菊的光周期性;而且随着株龄增加,受高夜温的影响也越趋容易。 3.综合不同季节所进行的试验结果,说明长日光周期诱导黑眼菊开花的作用很少受夜温下降的影响;可是当夜温下降,黑眼菊对赤霉素的反应便显然趋于迟钝。是一个颇为有趣而值得加以验证的现象。 4.盐蒿诱导态的完全建成要求5个以上的短日光周期;经历足够的短日周期数(我们的实验结果是34个周期)之后,盐蒿的诱导态便能完全保持。
1. The tests showed that the perilla, cocklebur, and saltwort we cultivated are all strictly short-day plants. Black-eyed chrysanthemum, spinach and the car are long-day plants; and these plants, only the black-eyed chrysanthemum response to gibberellin, in absolute short-day conditions, gibberellin can cause its flowering. 2. High night temperature (eg, 30 ℃) can change the photoperiod of black-eyed chrysanthemum; moreover, it is easier to be affected by high night-temperature as the plant age increases. 3. Based on the results of the experiments carried out in different seasons, it shows that the effect of long-day photoperiod on the flowering of Meadowfoil is less affected by the decrease of night temperature; however, when the night temperature is decreased, the reaction of Meadowfoil to gibberellin tends to be dull . It is a quite interesting and worth verifying phenomenon. 4. The complete induction of Artemisia halodendron requires more than five short-day photoperiod cycles; after a sufficient number of short-day cycles (our experimental result is 34 cycles), the induction state of Artemisia halodendron can be completely maintained.