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一、前言 玫瑰海棠是秋海棠科中的一群杂交种,由索科特拉纳秋海棠(Begonia socatrana)同球根秋海棠(Begonia tuberhybrida)杂交而来。第一次杂交开始于1883年。在栽培史上,西德的Otto. Rieger起着关键性的作用,他对品种进行了突破性的改良,使它具备更强的抗病力和吸引力,所以玫瑰海棠现在统称为Rieger Begonia。玫瑰海棠的根为须根系;茎枝肉质、多汁;单叶互生、心形,多数品种叶端锐尖、叶缘有锯齿,叶色多为绿色,也有棕红色的;花型多样,多为重瓣,花色有红、橙、黄、白等。玫瑰海棠不形成种子,可以通过扦插或组培繁殖。玫瑰海棠花期长、花色丰富、花朵冬开,是现今盆栽花卉市场上的佼佼者。
I. INTRODUCTION Rose Begonia is a group of hybrids of Begonia, a hybrid of Begonia socatrana and Begonia tuberhybrida. The first crossing began in 1883. In the history of cultivation, West Germany’s Otto. Rieger plays a key role, he made a breakthrough breed breakthrough, making it more resistant and attractive, so the Rose Begonia now collectively referred to as Rieger Begonia. The root of rose begonia is fibrous roots. The stems are succulent and succulent. The leaves are alternate and heart-shaped. Most of the leaves are sharp-pointed, with serrated edges. The leaves are mostly green and reddish-brown. Flap, color red, orange, yellow, white and so on. Rose Begonia do not form seeds that can be propagated by cutting or tissue culture. Rose Begonia long flowering period, rich colors, flowers winter open, is now the leader in potted flowers market.