论文部分内容阅读
本文对 Amaranthus tricolor(苋)的六个品种—杭州早熟青苋菜、杭州晚熟花苋菜、紫苋菜、花苋菜、杭州花苋菜和上海青苋菜在苗期对光周期的反应进行了初步的研究。实验结果表明:杭州花苋菜和上海青苋菜达到15天苗龄即可以对光周期诱导起反应而开花。杭州早熟青苋菜、杭州晚熟花苋菜和花苋菜则需达22天苗龄。紫苋菜在本实验条件下未开花。上海青苋菜在各种光周期条件下均可开花,但短日照可促进其开花。紫苋菜在实验期间、在各种光周期条件下均不开花。其余四个品种—杭州早熟青苋莱、杭州晚熟花苋菜、杭州花苋菜、花苋菜,表现出定量短日植物的特性,临界光周期分别为12 1/2、13.00、12 1/2、13.00小时;最小诱导周期数分别为4、2、3、3天。
In this paper, six varieties of Amaranthus tricolor (early amaranth), such as Hangzhou early mature amaranth, late flowering amaranth, amaranth, amaranth, Hangzhou amaranth and Amaranthus retroflexus were studied at the seedling stage. The experimental results show that: Hangzhou amaranth and Amaranthaceae amaranthus reached 15 days seedling age can respond to the photoperiod-induced flowering. Hangzhou early maturity amaranth, Hangzhou late flowering amaranth and amaranth are required up to 22 days seedling age. Purple amaranth is not flowering under the experimental conditions. Shanghai amaranth can flowering under various photoperiod conditions, but short sunshine can promote its flowering. Purple amaranth during the experiment, in a variety of photoperiod conditions are not flowering. The remaining four cultivars-Hangzhou early amaranth, late-maturing amaranth, Hangzhou amaranth, amaranth, showed the quantitative short-term plants with the critical photoperiod of 12 1/2, 13.00, 12 1/2, 13.00 Hour; the minimum number of induction cycles were 4,2,3,3 days.