Plasticity in relative growth rate after a reduction in nitrogen availability is related to root morphological and physiological responses | Zendy

Antonio Useche | Zendy; Bill Shipley | Zendy

Open Access

Plasticity in relative growth rate after a reduction in nitrogen availability is related to root morphological and physiological responses

Author(s) -

Antonio Useche,

Bill Shipley

Publication year - 2010

Publication title -

annals of botany

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.567

H-Index - 176

eISSN - 1095-8290

pISSN - 0305-7364

DOI - 10.1093/aob/mcq144

Subject(s) - biology , relative growth rate , herbaceous plant , dry weight , horticulture , growth rate , nutrient , root system , nitrogen , specific leaf area , unit root , phenotypic plasticity , botany , zoology , agronomy , photosynthesis , ecology , mathematics , chemistry , geometry , organic chemistry , statistics

To maximize growth and fitness a plant must adjust its phenotype by an amount and speed that matches changes in nitrogen availability. To determine how plastic ontogenetic changes in root physiological and morphological traits interact and whether or not these responses are likely to maximize growth, ontogenetic changes in relative growth rate (RGR, proportional rate of change of plant dry mass), unit root rate (URR, rate of change of plant dry mass per unit root length or area), specific root length (SRL, root length per dry root mass), specific root area (SRA, root area per dry root mass), and other root traits before and after a decrease in nitrogen supply, were studied in ten herbaceous species.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research