<span style="font-size:12.0pt;font-family:"Times New Roman";color:black;mso-bidi-font-weight: bold" lang="EN-US">Effect of Artificial Long-day Treatment on Extending the Blooming Period of Garden Chrysanthemunl <i>(Chrysanthemum morifolium </i>Ramat.) </span>

Abstract

The effect of artificial long-day treatment on extending the blooming period of

<i><span style="font-size:12.0pt;font-family:" times="" new="" roman";color:black;mso-bidi-font-weight:="" bold"="" lang="EN-US">Chrysanthemum morifolium</span></i> Ramat is reported. Twenty five cultivars were tested for their response to photoperiod by subjected them to artificially created long-day (lighting from 10 p.m. to 2 a.m.) conditions. The plant exposed to extended day length for 30 days showed maximum delay up to 26 days in cv. 'Basant Bahar'. It has been concluded that flowering in Chrysanthemum can be easily stretched from Decemher 10 January by interrupting the length of continuous dark period every day by using artificial light (from 10 p.m. to 2 a.m.) for 30 days under Lucknow conditions.