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首页> 外文期刊>African Journal of Biotechnology >Long term water integration in interconnected ramets of stoloniferous grass, buffalograss
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Long term water integration in interconnected ramets of stoloniferous grass, buffalograss

机译：在斯基罗拉斯的互连振动中长期水分整合

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Buffalograss (Buchlo? dactyloides) is known for its drought resistant character. Natural resources are patchily distributed and resource sharing between interconnected ramets can enhance the performance of the whole genet. In order to examine whether there exists long term water integration between interconnected ramets of buffalograss, a greenhouse experiment was conducted. Interconnected ramet pairs of stoloniferous buffalograss were planted in two partitioned similar-sized containers and subjected to homogeneous (20 ml pot-1?d-1?or 100 - 150 ml pot-1?d-1?) or heterogeneous (20 ml pot-1?d-1?vs. 100-150 ml pot-1?d-1) water supply; the whole experiment lasted for 91 days. In heterogeneous treatment, water translocation was equally effective in acropetal and basipetal directions. Elder ramet was more efficient in water use, but rooted ramet of elder ramet in moist condition experienced significant cost when it was connected to younger ramet in dry condition; whereas, no cost was found in any fragment of younger donor ramet. Ramet in dry condition produced more biomass than its connected ramet in moist condition and developed larger leaves. This “oversharing” phenomenon indicated that no net cost was involved in water integration, and water might not be the only resources transported within stolon xylem. Overall, long term water integration is an important strategy for buffalograss to cope with adverse natural drought conditions.
机译：水牛草（Buchlo？dactyloides）以其干旱的抗性特征是已知的。自然资源是俗好的分布式，互联角振铃之间的资源共享可以增强整个遗传的性能。为了检查水牛草的相互连接之间是否存在长期水分，进行温室实验。在两个分区的类似尺寸的容器中种植互连的氨纶对的被植入的水牛，并经受均相（20ml锅1→1→或100-150ml壶-1→D-1？）或异质（20ml锅-1？D-1？vs。100-150毫升锅1？D-1）供水;整个实验持续了91天。在异质处理中，水易位在侵入性和胸胸部方向上同样有效。老年人在水中较高效率较高，但在干燥条件下与较年轻的拉姆克斯在干燥条件下的休闲时，ranted ramet的rooded ramet经历了大量成本;虽然，在年轻的捐助者射门的任何片段中都没有发现任何费用。干燥条件下的拉姆斯在潮湿条件下产生的生物量更多，并且延长了较大的叶子。这种“过度”现象表明，没有净成本涉及水一体化，水可能不是唯一在斯托隆XYLEM内运输的资源。总体而言，长期水整合是水牛草应对不利天然干旱条件的重要策略。

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