草莓新品种‘连童’

‘连童’草莓是以‘童子1号’为亲本,以引发连作障碍主要因子尖孢镰刀菌毒素和自毒物质对羟基苯甲酸混合液为选择压力,利用组织培养技术诱变选育的新品种。果实长圆锥形,果面光滑,有蜡质光泽。果味微酸,香味浓,果肉橙红至红色。含可滴定酸0.17%,可溶性固形物11.3%,总糖7.9%,维生素C 0.793 mg·g~(-1)。果实硬度2.325 kg·cm~(-2),耐贮运。抗枯萎病、灰霉病和白粉病。产量在34 500kg·hm~(-2)以上,适合在河北、山东等省露地、拱棚和温室栽培。与‘童子1号’相比,连作障碍发生程度明显减轻。

A New Strawberry Cultivar ‘Liantong’

‘Liantong’,a new strawberry cultivar,was mutagenesised and selected with tissue culture technique from ‘Tongzi 1’,under the pressure of the mixture consisted of toxin ofFusarium oxysporum f.sp.fragariae and 4-hydroxybenzoic acid,an autotoxin.The long and conical fruits are orange-red or red color,smooth in surface,waxy in luster,with a slight acid and strong fragrant in aroma,which contains 0.17％ titratable acid,11.3％ soluble solids,7.9％ total sugar and 0.793 mg · g-1 vitamin C,with 2.325 kg · cm-2 fruit firmness and good shipping quality.The cultivar is resistant to wilt disease,gray mildew and powdery mildew,and suitable planted in open cultivation,semi-forcing or forcing cultivation in Hebei and Shandong provinces,with the yield more than 34 500 kg · hm-2.The occurrence of continuous cropping obstacle of ‘Liantong’ is lighter obviously than ‘Tongzi 1’