文章基本信息

标题：Plasticity in nodal root elongation through the hardpan triggered by rewatering during soil moisture fluctuation stress in rice
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作者：Roel Rodriguez Suralta ; Jonathan Manito Niones ; Mana Kano-Nakata 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2018
卷号：8
期号：1
页码：4341
DOI：10.1038/s41598-018-22809-5
语种：English
出版社：Springer Nature
摘要：bulk density (BD). YTH304 had greater plasticity in nodal root elongation through the hardpan than IR64 under SMF, which was clearly expressed during rewatering. YTH304 also had greater soil water uptake below the hardpan during drought and greater shoot growth than IR64. The results imply that deep root system development during SMF was due to the plasticity in nodal root elongation through the hardpan expressed during rewatering rather than during drought periods. This is against the long standing belief that active root elongation through the hardpan happens during drought. This also implies a need to revisit current root screening methods to identify rice lines with good hardpan penetration ability.