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首页> 外文期刊>African Journal of Biotechnology >The impact of aeration on potato (Solanum tuberosum L.) minituber production under soilless conditions
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The impact of aeration on potato (Solanum tuberosum L.) minituber production under soilless conditions

机译：无土条件下曝气对马铃薯（Solanum tuberosum L.）微型块茎生产的影响

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Aeroponic systems are more effective than hydroponics for minituber production, as provided by the optimal system for root oxygenation. The study was conducted to improve conventional hydroponic systems by applying aeration so as to enhance potato minituber production yield via providing adequate oxygen in the root zone. The responses of Agria and Sante cultivars to different levels of aeration [0 as control, 12.5, 25 and 75% (VAir/Vmedia/min)] were compared, particularly on tuberization and growth characteristics. In both cultivars examined, increasing the level of aeration led to higher number of stolons and tubers. Agria was more responsive and consisted of more large tubers rather than Sante, which influenced the number, yield and dry matter of tubers. Aerated plants had (a) more dry matter in their haulms because of more leaves and shoots, (b) larger leaf areas, and (c) delay in physiological maturity. Higher levels of tuber growth, longer roots and more stolons led to improvements in root: shoot ratio. Leaf area index duration increased remarkably by increased aeration. These features resulted in a remarkable rise in the total minituber number up to 3600/m2 which were 70% higher compared to the non-aerated group. Moreover, the minituber yield was achieved by applying the moderate level of aeration to 23.9 kg/m2 in Agria and high level of aeration to 17 kg/m2 in Sante rather than 8.73 and 6.51 kg/m2 in the control group, respectively.
机译：如用于根茎充氧的最佳系统所提供的，对于小块茎生产而言，航空系统比水培系统更有效。进行该研究的目的是通过通气来改善常规水培系统，从而通过在根部区域提供足够的氧气来提高马铃薯微型块茎的产量。比较了Agria和Sante品种对不同通气水平的响应[0作为对照，分别为12.5、25和75％（VAir / Vmedia / min）]，特别是在块茎和生长特性方面。在所研究的两个品种中，通气水平的提高导致茎和块茎的数量增加。 Agria反应灵敏，由更大的块茎组成，而不是Sante，这影响了块茎的数量，产量和干物质。加气植物（a）由于有更多的叶子和枝条，所以茎中的干物质更多，（b）叶面积更大，以及（c）生理成熟期延迟。更高的块茎生长水平，更长的根茎和更多的sto茎导致根冠比的提高。叶面积指数的持续时间因通气量的增加而显着增加。这些特征导致迷你块茎的总数显着增加，达到3600 / m2，与未充气组相比，增加了70％。此外，通过在Agria中适度通气至23.9 kg / m2，在Sante中适度通气至17 kg / m2，而不是对照组分别达到8.73和6.51 kg / m2，可以达到微型薯产量。

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