نتایج جستجو برای: nutrient components

تعداد نتایج: 455191  

2017
Shiyu Wang Yunfei Yang Heng Zhi

The root system of perennials is composed of the roots of different growth years. The nutrient storage capacities and activities of roots are an important basis for judging root components and plant senescence. In this research, changes in the contents of water-soluble carbohydrate (WSC) were used as indicators of the nutrient storage and activity of roots of different life years. From the earl...

2014
Ricardo F.H. Giehl

During a plant’s lifecycle, the availability of nutrients in the soil is mostly heterogeneous in space and time. Plants are able to adapt to nutrient shortage or localized nutrient availability by altering their root system architecture to efficiently explore soil zones containing the limited nutrient. It has been shown that the deficiency of different nutrients induces root architectural and m...

Journal: :Genetics 1990
B Griffing

A controlled-nutrient (CN) experiment was conducted to test three heterosis hypotheses with reference to tomato yield, and its components, for a set of two inbred lines and their hybrid that had previously exhibited considerable heterosis under field conditions. The CN treatments consisted of periodic applications of differential doses of nutrient solution to plants reared individually in conta...

Journal: :Ecology letters 2012
S Vicca S Luyssaert J Peñuelas M Campioli F S Chapin P Ciais A Heinemeyer P Högberg W L Kutsch B E Law Y Malhi D Papale S L Piao M Reichstein E D Schulze I A Janssens

Trees with sufficient nutrition are known to allocate carbon preferentially to aboveground plant parts. Our global study of 49 forests revealed an even more fundamental carbon allocation response to nutrient availability: forests with high-nutrient availability use 58 ± 3% (mean ± SE; 17 forests) of their photosynthates for plant biomass production (BP), while forests with low-nutrient availabi...

Journal: :Water Practice & Technology 2023

Abstract This study evaluated the concentrations and distributions of nutrient non-nutrient elements in water, sediment, mud, vegetation Ologe Lagoon, Lagos, Nigeria. Nutrient including Na, Ca, K, Mg were found high concentration values different components freshwater ecosystem. While water had least elements, Trapa natans highest. Aluminium showed similar distribution patterns components, exce...

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