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首页> 外文期刊>Plant Production Science >Nursery Growth of Banana(Musa spp.)Plantlets Rooted on Auxin-free and Auxin-supplemented Media
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Nursery Growth of Banana(Musa spp.)Plantlets Rooted on Auxin-free and Auxin-supplemented Media

机译：在不含生长素和补充生长素的培养基上生根的香蕉苗的苗期生长

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This paper describes the effects of auxin added to the culture medium on main and branch root formation of banana(Musa spp.)shoots and growth characters of the plantlet rooted on the medium with and without auxin. Banana shoots cultured in vitro on Murashige and Skoog medium supplemented with 2μM 1-naphthylacetic acid(NAA), rooted earlier and also had more adventitious roots than those cultured on the medium without NAA. However, the adventitious roots formed on the medium without NAA showed more lateral branching. Plant height and number of leaves per plantlet in in vitro culture were not influenced by the addition of NAA but under nursery conditions, plantlets rooted without NAA showed better growth in terms of days to the appearance of new leaf, plant height and number of leaves per plant. This might be due to the presence of abundant lateral roots. Even though auxings are generally known to promote rooting, NAA inhibited the formation of lateral roots in Banana plants.
机译：本文介绍了添加培养基中的生长素对香蕉（Musa spp。）枝条主根和分支根形成的影响，以及在有和没有生长素的条件下在培养基上生根的小植株的生长特性。在补充有2μM1-萘乙酸（NAA）的Murashige和Skoog培养基上体外培养的香蕉芽比不使用NAA的培养基上培养的香蕉根更早，并且具有更多的不定根。然而，在没有NAA的培养基上形成的不定根显示出更多的侧向分支。添加NAA不会影响体外培养中每株小苗的株高和叶片数，但是在苗圃条件下，没有NAA的根系小植株在新叶出现的天数，株高和每株叶数方面表现出更好的生长。厂。这可能是由于侧根丰富。尽管众所周知，辅助生长会促进生根，但NAA抑制了香蕉植物中侧根的形成。

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