Results 71 to 80 of about 6,813 (139)
Shuitu Baochi Xuebao, 2007 研究4种草本植物（黑麦草、狗牙根、早熟禾、翦股颖）对重金属铅的吸收积累规律,为生态环境建设提供科学依据。采用盆栽试验,分别测定地上部与根部铅含量,计算地上部铅含量/根系铅含量（S/R）,根系耐性指数,富集系数4个指标。4种植物地上部和根系中的铅含量与土壤中铅含量呈显著的正相关,相关系数都大于0.90;综合4个指标,对铅的抗性相对顺序为翦股颖〉黑麦草〉早熟禾〉狗牙根。在较高铅离子浓度处理下,4种植物外观没有表现出明显的胁迫现象,特别是黑麦草和翦股颖在重金属Pb含量高达3000 mg/kg的污染土壤上 ...
石汝杰, 陆引罡
doaj
New Phytologist, Volume 249, Issue 5, Page 2300-2310, March 2026.Summary Establishment growth represents a critical phase in the plant life cycle. In clonal herbs, which depend on developing extensive belowground organs, this stage may be particularly vulnerable due to substantial belowground resource allocation. We hypothesized that such investment constrains tolerance to early disturbance in clonal herbs compared ...
Jana Martínková +2 more
wiley +1 more source
Cold hardiness mechanisms and modeling: existing approaches and future avenues
New Phytologist, Volume 249, Issue 6, Page 2668-2682, March 2026.Summary Cold hardiness models are useful tools to predict cold damage in plants, such as those produced by unseasonal temperature cycles or by increased cold exposure. Although development of these models started about five decades ago, their applications remain limited.
Guillaume Charrier +3 more
wiley +1 more source
生物质炭和果胶对再生水灌溉下玉米生长及养分、重金属迁移的影响
Shuitu Baochi Xuebao, 2017 利用根箱试验方法比较了生物质炭和果胶对再生水灌溉下土壤—植物系统养分和重金属迁移特征的影响及差异性。结果表明，再生水灌溉不利于植物的生长，果胶和生物质炭两个处理相比，虽然植株生长无显著差异，但果胶处理植株的生长状况优于生物质炭处理；再生水灌溉时，果胶处理地上部生物量比对照增加了59.32%。与蒸馏水灌溉相比，再生水灌溉增加了根际土壤pH；灌溉水源相同时，果胶处理根际土壤pH略低于生物质炭处理。生物质炭和果胶都增加了土壤养分的含量，果胶对土壤碱解氮、有效磷和有机质的增加效果优于生物质炭 ...
刘 +5 more
doaj
New Phytologist, Volume 249, Issue 6, Page 3137-3148, March 2026.Summary The Grant‐Stebbins model predicts that a plant species encountering different pollinators across its range may undergo local adaptation and, subsequently, ecological speciation. We tested whether this could explain the origin of Aeschynanthus acuminatus (Gesneriaceae), a species phylogenetically derived from sunbird specialist ancestors.
Jing‐Yi Lu +3 more
wiley +1 more source
Shuitu Baochi Xuebao, 2017 旨在通过改变生物质炭在植烟土壤中的施入量，明确优质烤烟在生产环节的根系发育、叶片光合特性及地上和地下部分协调生长的生理指标，以改善东北植烟区烤烟品质较差的现状，于2015—2016年采用大田试验方式，设置6个处理（CK、T1、T2、T3、T4、T5），与当地常规施肥相比，各处理氮肥施入量均减少40%，分析不同生物质炭用量对烤烟旺长期根系生理指标与叶片光合生理指标的影响。结果表明，烤烟烟株在旺长期根系发育状况与光合生理指标、叶绿素含量、叶面积系数的状况是协调一致的；施用生物质炭2 400 kg ...
王欢欢 +7 more
doaj
New Phytologist, Volume 249, Issue 6, Page 2909-2918, March 2026.Summary Understanding when and where drought stress originates in the soil–plant continuum is essential for predicting plant responses to climate change. While stomatal closure is a well‐known reaction to declining soil moisture, the precise hydraulic trigger remains unresolved.
Sara Di Bert +8 more
wiley +1 more source
New Phytologist, Volume 249, Issue 6, Page 2894-2908, March 2026.Summary The mechanisms controlling lateral root emergence in monocots, particularly the role of the exodermis, are poorly understood. We investigated how natural variation in the Brachypodium distachyon stress response shapes root system architecture by modulating cell wall dynamics.
Kevin Bellande +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2005 采用土培根袋试验研究了锌胁迫对重金属富积累植物黑麦草4个品种生长，N、P、K养分及Zn吸收积累的影响。结果表明，Zn在一定范围内（0～520mg／kg）促进了黑麦草生长，RTI（根系耐性指数）≥1.0（0～520mg／kg Zn^2＋）。在Zn^2＋≤260mg／kg（根系）或Zn^2＋≤520mg／kg（地上部）时，黑麦草吸收N、P、K并未受到抑制。植株地上部和根系最大N、P、K含量大多出现在生物量最大或次高的260，520mg／kg Zn^2＋处理中。黑麦草植株Zn含量随Zn胁迫的增加而增加 ...
徐卫红 熊治庭 王宏信 李仰锐 刘吉振 李文一
doaj
New Phytologist, Volume 249, Issue 6, Page 3039-3059, March 2026.Summary Globodera pallida poses a major threat to potato production, with management strategies primarily relying on genetic resistance. However, increasing virulence in field populations across Western Europe raises major concerns for G. pallida control.
Arno S. Schaveling +8 more
wiley +1 more source