夏天强光对花卉不同的影响

       光是绿色植物进行光合作用不可缺少的条件。光照强度常依地理位置、地势高低以及云量、雨量的不同而变化：随纬度的增加而减弱，随海拔的升高而增强；一年中以夏季光照最强，冬季光照最弱；一天中以中午光照最强，早晚光照最弱。光照强度不同，不仅直接影响光合作用的强度，而且影响到植物体一系列形态和解剖上的变化，如叶片的大小和厚薄；茎的粗细、节间的长短；叶片结构与花色浓淡等。

 

butongdehuahuizhongleiduiguangzhaoqiangdudefanyingbutong，duoshuludicaohua，zaiguangzhaochongzudetiaojianxia，zhizhushengzhangjianzhuang，zhehuaduoerda；eryouxiehuahui，zaiguangzhaochongzudetiaojianxia，fanershengzhangbuliang，xubanyintiaojiancainengjiankangshengzhang。yiduiguangzhaoqiangdudeyaoqiubutong，kejianghuahuifenweiyixiajilei：

 

阳性花卉：yangxinghuahuibixuzaijiaoqiangdeguangzhaoxiashengzhang，bunengrenshoubiyin，yibanxuquanrizhao70%yishangdeguangqiang，fouzeshengzhangbuliang。yuanchanredaijiwendaipingyuanshang，gaoyuannanpoyijigaoshanyangmianyanshishangdehuahui，junweiyangxinghuahui，ruduoshuludiyi、ernianshenghuahui，sugenhuahuijixianrenzhangke、jingtiankehefanxingkedengduojiangzhiwu。

 

阴性花卉：yinxinghuahuiyaoqiushidubiyinfangnengshengzhanglianghao，bunengrenshouqiangliedezhisheguangxian，shengzhangqijianyibanyaoqiu50～80%biyindudehuanjingtiaojian，zaizhiwuziranqunluozhong，changchuyuzhongxiaceng，huoshengzhangzaichaoshibeiyinchu。rulankezhiwu、jueleizhiwuyijikujutaike、fenglike、jiangke、tiannanxingke、qiuhaitangkedengzhiwu，douweiyinxinghuahui。xuduoguanyezhiwuyeshucilei。

 

耐荫花卉：naiyinhuahuiduiguangzhaoqiangdudeyaoqiujieyuyangxinghuahuiyuyinxinghuahuizhijian，duiguangzhaodeshiyingfanweijiaoda，yibanxiyangguangchongzu，danyenengrenshoushidangdebiyin，ruxuancao 、loudoucai、jiegengdeng。

 

yibanhuahuixuguangliangdayueweiquanrizhaode50～70%，duoshuhuahuizai50%yixiaguangzhaoshishengzhangbuliang。jiuyibanzhiwueryan，20000～40000luxyikedadaoshengzhang、kaihuadeyaoqiu。zaixiajipingjunzhaodukeda50000lux，yibandezhaodujiweizhiwusuoxudezuishizhaodu，guoqiangdeguangzhaoqiangduhuishizhiwutonghuazuoyongjianhuan。

 

guangzhaoqiangruoduihualeikaifangshijianyeyouhendayingxiang。banzhilian、zuojiangcaobixuzaiqiangguangxiakaihua；yuejiancao、zimoli、wanxiangyuyubangwanshengkai；tanhuayuyejiankaihua；qianniuhuazhishengkaiyumeiridechenxizhong。juedaduoshuhuahuichenkaiyebi。