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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Oxygen isotope enrichment ( Delta 18O) is a potential screening approach for higher leaf yield in tea (Camellia sinesis) accessions.
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Oxygen isotope enrichment ( Delta 18O) is a potential screening approach for higher leaf yield in tea (Camellia sinesis) accessions.

机译：富氧同位素（Delta 18O）是一种潜在的筛选方法，可提高茶树（Camellia sinesis）品种的叶片产量。

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摘要

The relevance of oxygen isotope (18O) enrichment as a measure of transpiration rate and total leaf biomass of tea accessions grown under field conditions in Valparai, Tamil Nadu, India, was evaluated. Natural variation in ( Delta 18Olb) in existing tea accessions was significantly high (18.36-25.31 per mil) and showed a strong positive relationship with the harvested leaf yield (r=0.484, P0.05, n=20). The relative values of Delta 18O for the crosses (genetic cross) were higher than those recorded for either of the individual parents. This trend was also reflected in the leaf yield. This study highlights the relevance of 18O enrichment approach for screening tea accessions for both higher transpiration rate and leaf yields..
机译：评估了氧同位素（18O）富集的相关性，以衡量田间条件下在印度泰米尔纳德邦瓦尔帕莱伊种植的茶树种的蒸腾速率和总叶片生物量。现有茶树种中（Δ18Olb）的自然变化非常高（每密耳18.36-25.31），并且与收获的叶片产量呈极强的正相关（r = 0.484，P <0.05，n = 20）。杂交（遗传杂交）的Delta 18O的相对值高于任何一个亲本的记录值。这种趋势也反映在叶片产量上。这项研究强调了18O富集方法对于筛查茶树种的较高蒸腾速率和叶片产量的相关性。

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