نتایج جستجو برای: rooting bed

تعداد نتایج: 52924  

2017
Uyen Mai Erfan Sayyari Siavash Mirarab

Phylogenetic trees inferred using commonly-used models of sequence evolution are unrooted, but the root position matters both for interpretation and downstream applications. This issue has been long recognized; however, whether the potential for discordance between the species tree and gene trees impacts methods of rooting a phylogenetic tree has not been extensively studied. In this paper, we ...

2012
Frida Keuper Peter M. van Bodegom Ellen Dorrepaal James T. Weedon Jurgen van Hal Richard S. P. van Logtestijn Rien Aerts

Many of the world's northern peatlands are underlain by rapidly thawing permafrost. Because plant production in these peatlands is often nitrogen (N)-limited, a release of N stored in permafrost may stimulate net primary production or change species composition if it is plant-available. In this study, we aimed to quantify plant-available N in thawing permafrost soils of subarctic peatlands. We ...

Journal: :Plant physiology 2008
Wei Xuan Fu-Yuan Zhu Sheng Xu Ben-Kai Huang Teng-Fang Ling Ji-Yan Qi Mao-Bing Ye Wen-Biao Shen

Indole acetic acid (IAA) is an important regulator of adventitious rooting via the activation of complex signaling cascades. In animals, carbon monoxide (CO), mainly generated by heme oxygenases (HOs), is a significant modulator of inflammatory reactions, affecting cell proliferation and the production of growth factors. In this report, we show that treatment with the auxin transport inhibitor ...

2015
Amanda Rasmussen Seyed Abdollah Hosseini Mohammed-Reza Hajirezaei Uwe Druege Danny Geelen

Adventitious rooting, whereby roots form from non-root tissues, is critical to the forestry and horticultural industries that depend on propagating plants from cuttings. A major problem is that age of the tissue affects the ability of the cutting to form adventitious roots. Here, a model system has been developed using Pisum sativum to differentiate between different interpretations of ageing. ...

Journal: :CNS Spectrums 2005

2014
Keith Smettem Nik Callow

Variants of the Budkyo hydrological model describe the effects of land use change on annual water yield. A recent modification using a simple process-based ecohydrological model provides insight into the partitioning of rainfall between runoff and evapotranspiration. In particular, the ‘effective vegetation rooting depth’ becomes the single free parameter in the model and can be related to land...

Journal: :Acta paediatrica 1995
E Nissen G Lilja A S Matthiesen A B Ransjö-Arvidsson K Uvnäs-Moberg A M Widström

The aim of this quasi-experimental study was to examine the effects of maternal pethidine during labour on the developing breast feeding behaviour in infants in the first 2 h after birth compared with infants not exposed to pethidine. Forty-four healthy infants were observed immediately after birth. They were placed skin-to-skin on their mothers' chests. The development of mouth and sucking mov...

2011
Joaquín Guerrero-Campo Sara Palacio Carmen Pérez-Rontomé

● Background and aims. The objective of this study was to test whether the mean values of several root morphological variables were related to the ability to develop root-borne shoots and/or shoot-borne roots in a wide range of vascular plants. ● Methods. A comparative study was carried out on the 123 most common plant species from eroded lands in NE Spain. After careful excavations in the fiel...

2017
Qiaojun Lou Liang Chen Hanwei Mei Kai Xu Haibin Wei Fangjun Feng Tiemei Li Xiaomeng Pang Caiping Shi Lijun Luo Yang Zhong

Drought is the most serious abiotic stress limiting rice production, and deep root is the key contributor to drought avoidance. However, the genetic mechanism regulating the development of deep roots is largely unknown. In this study, the transcriptomes of 74 root samples from 37 rice varieties, representing the extreme genotypes of shallow or deep rooting, were surveyed by RNA-seq. The 13,242 ...

Journal: :Ciencia Rural 2021

ABSTRACT: The asexual propagation of conifers, such as Podocarpus macrophyllus (Thunb.) Sweet, faces difficulties. Among the factors that can improve efficiency are types cuttings used and lesions performed at base cuttings, use plant regulators, indolebutyric acid (IBA). This study determined to be cutting base, type used, method convey IBA concentration required obtain a proper rooting condit...

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