花種 向日葵

向日葵四(si)季(ji)皆可(ke)，主(zhu)要(yao)以(yi)(yi)夏、冬(dong)兩季(ji)為主(zhu)。花(hua)(hua)(hua)期可(ke)達(da)兩周以(yi)(yi)上。向日葵除了外型(xing)酷(ku)似太(tai)陽(yang)以(yi)(yi)外，她的(de)花(hua)(hua)(hua)朵(duo)明(ming)亮大(da)方(fang)，適合觀(guan)賞(shang)擺飾(shi)，她的(de)種(zhong)(zhong)(zhong)(zhong)子更具經濟價值，不但可(ke)作成(cheng)受人喜愛的(de)葵瓜子，更可(ke)榨出低(di)膽固醇的(de)高級食(shi)用葵花(hua)(hua)(hua)油。向日葵的(de)品(pin)(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)可(ke)分(fen)為“一般(ban)觀(guan)賞(shang)用”品(pin)(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)或“食(shi)用”品(pin)(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)，一般(ban)觀(guan)賞(shang)用品(pin)(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)特征為植(zhi)株(zhu)較(jiao)矮小(xiao)，通(tong)常不超(chao)過半公尺，因此(ci)適合栽種(zhong)(zhong)(zhong)(zhong)于(yu)盆(pen)(pen)栽中(zhong)；食(shi)用品(pin)(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)則植(zhi)株(zhu)較(jiao)為高大(da)，種(zhong)(zhong)(zhong)(zhong)于(yu)一般(ban)露天(tian)苗圃土壤中(zhong)，可(ke)長至2公尺以(yi)(yi)上。向日葵生長相(xiang)(xiang)當迅速，通(tong)常種(zhong)(zhong)(zhong)(zhong)植(zhi)約兩個月即(ji)可(ke)開花(hua)(hua)(hua)，其花(hua)(hua)(hua)型(xing)有單(dan)(dan)瓣、重瓣或單(dan)(dan)花(hua)(hua)(hua)、多(duo)花(hua)(hua)(hua)之(zhi)分(fen)，花(hua)(hua)(hua)期相(xiang)(xiang)當長久可(ke)達(da)兩周以(yi)(yi)上。 1.品(pin)(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)選擇選擇矮生向日葵中(zhong)的(de)大(da)微笑品(pin)(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)，該品(pin)(pin)(pin)(pin)種(zhong)(zhong)(zhong)(zhong)株(zhu)高30至40厘(li)米(mi)，花(hua)(hua)(hua)徑10至17厘(li)米(mi)，單(dan)(dan)花(hua)(hua)(hua)瓣明(ming)亮金黃，花(hua)(hua)(hua)心(xin)黑色，一般(ban)插種(zhong)(zhong)(zhong)(zhong)后(hou)50至55天(tian)可(ke)開花(hua)(hua)(hua)，適于(yu)盆(pen)(pen)栽和花(hua)(hua)(hua)壇種(zhong)(zhong)(zhong)(zhong)植(zhi)。