Improvement of seed germination and seedling growth of papaya (Carica papaya L.) through different pre-sowing seed treatments.
Improvement of seed germination and seedling growth of papaya (Carica papaya L.) through different pre-sowing seed treatments.
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DOI：
10.17660/actahortic.2010.851.48
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
P. Deb;A. Das;S. Ghosh;C. P. Suresh
中科院分区：
文献类型：
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作者：
P. Deb;A. Das;S. Ghosh;C. P. Suresh
适宜的种子萌发和幼苗生长是番木瓜育苗技术成功的关键。针对番木瓜种子播前添加生长调节剂和微量营养素处理对种子发芽率和幼苗生长的影响，进行了种子萌发和幼苗生长的适宜处理。用赤霉素3(100、150和200ppm)、硫代硫酸钠(20ppm、25ppm和30ppm)和微量营养素混合物(4种不同的硼砂和硫酸锌组合)浸泡种子。在11个处理中，以150ppm的GA3处理的种子萌发效果最好(72.2%)，其次是20ppm的硫代硫酸钠(68.1%)。当GA3浓度为200ppm时，幼苗生长达到最大值(苗高52.32 cm，苗围5.18 cm)。0.50%的硼砂和0.25%的锌对苗木生长也有明显的促进作用。
Proper seed germination and seedling growth are most important considerations in successful seedling production under nursery technique of papaya cultivation. As the germination rate and seedling growth are affected by pre-sowing seed treatment of papaya with growth regulators and micronutrients, an experiment was carried out to identify a suitable treatment for getting better seed germination and seedling growth. Seeds were soaked with GA 3 (at 100, 150 and 200 ppm), sodium thiosulphate (at 20, 25 and 30 ppm) and micronutrient mixtures (4 different combinations of borax and zinc sulphate). Among the 11 treatments, GA 3 at 150 ppm was found best in respect to seed germination (72.2%) followed by sodium thiosulphate at 20 ppm (68.1%). But maximum seedling growth (52.32 cm seedling height and 5.18 cm seedling girth) was observed under GA 3 at 200 ppm. Borax at 0.50% along with ZnSO 4 at 0.25% also markedly improved the seedling growth.