交功課啦~
斑葉有4種: 杜美萊,皇冠,馬賽克和"十字斑"
杜美萊斑葉 (Tommie Lou variegation, 簡稱TL variegation)於1967由杜美萊太太 ( Mrs. Tommie Lou Oden )發現.
有一天,她發現她插的葉生出異變的小苗.她將小苗繼續繁殖...結果,這異變異常穩定...這就是現在的杜美萊斑葉.
值得一提的是這種異變是由雌性的基因遺傳的,所以原種是曾曾曾曾曾曾曾曾.........祖母~
斑紋多於葉邊,或平均分佈,白,黃或紅色的斑
原文( FROM http://www.avsc.ca/hybridization.htm) What a surprise Mrs. Tommie Lou Oden had one day when she found a variegated baby plant growing in a clump of new plants from a mother leaf of an old variety called "White Pride". Knowing that variegated violets had a bad reputation, Mrs. Oden propagated her plant through many generations. To her surprise the variegation was stable. The plant was ultimately registered with the African Violet Society of America and named, appropriately, "Tommie Lou". "Tommie Lou" is the (many times over) grandmother or great-grandmother of every plant you see exhibiting the leaf-edge type of variegation. Note that she is the "grandmother", never the "grandfather" as variegation is a characteristic passed on through the female line only.
example:http://www.avsa.org/Photographs/BuckeyeDogwoodSpringLrg.jpg
好像是杜美萊的原種:http://www.robsviolet.com/tommilou.htm
皇冠斑葉(crown variegation or champion)於1960發現
斑紋集中於中心點,隨葉子長大而退斑,看上去就像戴著皇冠
example:http://www.dollyyeh.idv.tw/sparkleberry.htm
馬賽克斑葉(mosaic variegation or "Lillian Jarrett" variegation)於19601發現
斑紋平均分佈,白,黃或紅色的斑
example:http://www.dollyyeh.idv.tw/midget_silver_fox.htm
斑葉的常見問題係退斑
原因有二:
1)温度過高: 增加吸收氮的速率,製造葉綠素的速率相對提高,因而退斑
2)氮肥過多:原因同上(製造葉綠素的速率相對提高)
另外,夏天斑葉退斑其實係好事,因為葉綠素多,製造出來的食物自然較多,生存機率自然提高~
(以上不是我的心得,只是在網上找來的資料)
自己的經驗只有:
斑葉插葉多數出的小苗都是沒葉綠素....
所以要等小苗大d,多d葉綠素才分苗~
另外,插葉要用一d多葉綠素的母葉
找來的一些網頁
http://davesgarden.com/guides/articles/view/402/
http://tw.myblog.yahoo.com/flych ... =1252&next=1243
http://www.tbg.org.tw/~tbgweb/cg ... ;start=0&show=0
http://flowers.hunternet.com.tw/showthread.php?t=53224
P.S. 志在分享~小禮品留給有緣人吧~
[ 本帖最後由 Oskar 於 2008-3-26 23:56 編輯 ] |