scholarly journals Optimization of source–sink dynamics in plant growth for ideotype breeding: A case study on maize

2010 ◽  
Vol 71 (1) ◽  
pp. 96-105 ◽  
Author(s):  
Rui Qi ◽  
Yuntao Ma ◽  
Baogang Hu ◽  
Philippe de Reffye ◽  
Paul-Henry Cournède
Keyword(s):  
Plant Growth ◽  
Ideotype Breeding ◽  
Source Sink

Sink strength of citrus rootstocks under water deficit

2021 ◽  
Author(s):  
Simone F da Silva ◽  
Marcela T Miranda ◽  
Vladimir E Costa ◽  
Eduardo C Machado ◽  
Rafael V Ribeiro
Keyword(s):  
Plant Growth ◽  
Root Growth ◽  
Water Deficit ◽  
Carbon Allocation ◽  
Sink Strength ◽  
Rangpur Lime ◽  
Carbon Supply ◽  
Valencia Orange ◽  
Source Sink ◽  
Orange Trees

Abstract Carbon allocation between source and sink organs determines plant growth and is influenced by environmental conditions. Under water deficit, plant growth is inhibited before photosynthesis and shoot growth tends to be more sensitive than root growth. However, the modulation of source-sink relationship by rootstocks remain unsolved in citrus trees under water deficit. Citrus plants grafted on Rangpur lime are drought tolerant, which may be related to a fine coordination of the source-sink relationship for maintaining root growth. Here, we followed 13C allocation and evaluated physiological responses and growth of Valencia orange trees grafted on three citrus rootstocks (Rangpur lime, Swingle citrumelo and Sunki mandarin) under water deficit. As compared to plants on Swingle and Sunki rootstocks, ones grafted on Rangpur lime showed higher stomatal sensitivity to the initial variation of water availability and less accumulation of non-structural carbohydrates in roots under water deficit. High 13C allocation found in Rangpur lime roots indicates this rootstock has high sink demand associated with high root growth under water deficit. Our data suggest that Rangpur lime rootstock used photoassimilates as sources of energy and carbon skeletons for growing under drought, which is likely related to increases in root respiration. Taken together, our data revealed that carbon supply by leaves and delivery to roots are critical for maintaining root growth and improving drought tolerance, with citrus rootstocks showing differential sink strength under water deficit.

Vermiculite-Lizardite Industrial Wastes Promote Plant Growth in a Peat Soil Affected by a Cu/Ni Smelter: a Case Study at the Kola Peninsula, Russia

2020 ◽  
Vol 20 (3) ◽  
pp. 1013-1018
Author(s):  
Ekaterina Tarasova ◽  
Svetlana Drogobuzhskaya ◽  
Felipe Tapia-Pizarro ◽  
Dmitry V. Morev ◽  
Vasyl A. Brykov ◽  
...  
Keyword(s):  
Plant Growth ◽  
Kola Peninsula ◽  
Peat Soil ◽  
Industrial Wastes ◽  
Promote Plant Growth

An optimal control methodology for plant growth—Case study of a water supply problem of sunflower

2012 ◽  
Vol 82 (5) ◽  
pp. 909-923 ◽  
Author(s):  
Lin Wu ◽  
François-Xavier Le Dimet ◽  
Philippe de Reffye ◽  
Bao-Gang Hu ◽  
Paul-Henry Cournède ◽  
...  
Keyword(s):  
Optimal Control ◽  
Plant Growth ◽  
Water Supply ◽  
Supply Problem ◽  
Control Methodology

Teaching Authentic Soil & Plant Science in Middle School Classrooms with a Biochar Case Study

2019 ◽  
Vol 81 (4) ◽  
pp. 256-268
Author(s):  
Yamina Pressler ◽  
Mary Hunter-Laszlo ◽  
Sarah Bucko ◽  
Beth A. Covitt ◽  
Sarah Urban ◽  
...  
Keyword(s):  
Climate Change ◽  
Middle School ◽  
Plant Growth ◽  
Plant Interactions ◽  
Ongoing Research ◽  
Global Issues ◽  
Promote Plant Growth ◽  
Rich Material ◽  
Mitigate Climate Change

We designed two NGSS-aligned middle school classroom experiments to investigate the effects of biochar on plant growth and soil respiration. Biochar is a carbon-rich material, produced by heating organic matter under limited oxygen, that is added to soils to improve fertility, to promote plant growth, and as one possible strategy to help mitigate climate change. The experiments offer an ideal case study for students learning fundamentals of soil and plant interactions. Soils and biochar are accessible, are connected to global issues such as agriculture and climate change, and are the focus of ongoing research in soil science. These classroom experiments promote authentic science because students design replicated experiments, collect and analyze data, discuss variability in the data, and interpret their results in the context of recent research.

A metacommunity perspective on source–sink dynamics and management: the Baltic Sea as a case study

2014 ◽  
Vol 24 (7) ◽  
pp. 1820-1832 ◽  
Author(s):  
Martin Lindegren ◽  
Ken H. Andersen ◽  
Michele Casini ◽  
Stefan Neuenfeldt
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
The Baltic ◽  
Source Sink

scholarly journals Analysis of soil physical quality index (case study: groundnut/ Arachis hypogeal L.)

2021 ◽  
Vol 306 ◽  
pp. 02052
Author(s):  
R. Riskawati ◽  
Dwi Putro T Baskoro ◽  
Latief M Rachman
Keyword(s):  
Plant Growth ◽  
Physical Properties ◽  
Quality Index ◽  
Index Case ◽  
Aggregate Stability ◽  
Physical Quality ◽  
Soil Physical Quality ◽  
Score Range ◽  
Properties Of Soil

Physical properties of soil are good for plant growth is closely related to the management of the soil, so it will need to integrate of physical properties to get an overall assessment with making soil physical quality index (SPQI). This study aims to an evaluation of physical properties and determines the physical quality index using several unit treatments to produce various physical qualities on Groundnut/Arachis hypogeal L. The location of the research was carried out in a farmer's garden in Cimaung Village, Cikeusal District, Serang Regency, Banten Province (Coordinates 6o12’14’’ S dan 106o11’52’’E). To analyze the SPQI using several physical properties of the soil such as texture, bulk density, porosity, permeability, and aggregate stability. Each indicator has a scoring parameter to assess the soil physical quality index with a score range of 0-5. An assessment SPQI in a land unit is able to describe the various physical qualities of the soil which are represented by several physical properties of the soil. The unit treatment which class categorization of soil physical quality index indicated slightly good (U2), medium (U1, U3-U6), and slightly poor (U7) as a control.

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