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首页> 外文期刊>The Journal of Horticultural Science & Biotechnology >Induction and generation of flowering in cabbage plants by seed vernalisation, gibberellic acid treatment and ratooning.
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Induction and generation of flowering in cabbage plants by seed vernalisation, gibberellic acid treatment and ratooning.

机译：通过种子春化处理，赤霉素处理和再生处理，在白菜植株中诱导和开花。

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Experiments were conducted to determine whether applying seed vernalisation or gibberellic acid treatment, alone or in combination, can induce flowering in cabbage plants raised from seeds and ratoons at relatively high temperatures (20 degrees -25 degrees C), and to determine whether new flowering plants can be generated from flower-induced plants. Seeds of ten varieties of cabbage were imbibed in 302.44 g l-1 polyethylene glycol 6000 and exposed to vernalisation temperatures (2.0 degrees -4.5 degrees C) for 8 weeks in a refrigerator, while controls were kept at 25 degrees C for 11 d, after which the seeds were sown and plants raised at 20 degrees -25 degrees C. Ratoon plants were also raised from control and seed-vernalised plants from the previous experiment. Forty five d after transplanting, or 28 d after removing the heads, 250 mg l-1 gibberellic acid (GA3) was applied to the leaves of plants raised from seed or ratoons respectively, followed by six further applications at 1-week intervals. The combined effects of seed vernalisation and GA3 induced flowering in cabbage plants of variety 'HRT 009617' developed from seeds or ratoons. None of the treatments had any adverse effect on the percentage germination of subsequent seeds produced from those varieties that flowered. All showed 89%, or higher germination. Cuttings from the reproductive stalks of flowering-induced plants were able to flower at 20 degrees C, without vernalisation..
机译：进行了实验以确定单独或联合使用种子春化处理或赤霉素处理是否可以在相对较高的温度（20 -25摄氏度）下诱导从种子和再生植物生长的甘蓝植物中开花，并确定是否有新的开花植物可以从花诱导的植物中产生。将十种卷心菜的种子吸收在302.44 g l-1聚乙二醇6000中，并在冰箱中暴露于春化温度（2.0摄氏度-4.5摄氏度）8周，而对照则在25摄氏度下保持11 d。其中播种了种子，并在20度-25摄氏度下培育了植物。从先前实验的对照和种子春化的植物中也培育了再生植物。移栽后第45天，或移开头部后28天，分别对从种子或再生植物长出的植物叶片施用250 mg -1赤霉素（GA3），然后每隔1周再施六次。种子春化处理和GA3共同作用导致从种子或再生植物中分离出来的'HRT 009617'品种的甘蓝植物开花。没有一种处理对从开花的那些品种产生的后续种子的发芽百分比没有任何不利影响。全部显示出89％或更高的发芽率。开花诱导植物的生殖茎上的插条能够在20摄氏度下开花，而无需春化处理。

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