The Flowering Habits of Ixora spp. and Effects of Pruning Time on the Growth and Flowering in Ixora williamsii cv. Sunkist
張育森(Yu-Sen Chang)；吳淑均(Shu-Chun Wu)
仙丹花 ； 開花 ； 修剪 ； ixora ； flowering ； pruning
|Volume or Term/Year and Month of Publication||
43卷4期（1997 / 12 / 01）
330 - 340
The flowering behavior and optimum pruning time of ixoras (Ixora spp.) were investigated. In north Taiwan, teas-a williamsii cv. Sunkist is flowering from May to November, and full boom in July. The duration from inflorescence visible to anthesis lakes about one month, and from anthesis to all flowers abscission is also about our month, The flower buds which formed in May and flowering in July have the longest flowering duration in the year, the following formed flower buds in the year had shorter flowering duration. The developmental processes of inflorescence of Ixora chinensis is similar to Ixora williamsii cv. Sunkist. Ixora chinensis has more hardness than Ixora williamsii cv, Sunkist, so it can flower all of the year in Taiwan. Not concerning in pruning dale of Ixora williamsii cv, Sunkist., the optimum growing period of new shoots emerged after pruning are daring July to September. The growth rate of new shoots emerged from the shoots pruned in March and May have faster than these pruned in July to November, and could form flower bud in the current year. The new shouts emerged from March to November pruned plants wilt gel chilling injury in winter, but none for those from January pruning. Besides, pruning from July to November do not improve the flower formation, and pruning from March to May decrease the flowering covering rule in full bloom period. So, from January to February will be the favorite time for pruning in hedges of Ixora williamsii cv. Sunkist.
生物農學 > 農業