Premium
The growth, yield and nutrient uptake of winter wheat following root‐pruning
Author(s) -
AYLING SARAH M.
Publication year - 1989
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1989.tb03372.x
Subject(s) - shoot , pruning , biology , lysimeter , agronomy , dry matter , phosphorus , nutrient , potassium , horticulture , dry weight , yield (engineering) , growing season , chemistry , soil water , ecology , materials science , organic chemistry , metallurgy
Summary The effect of root‐pruning on shoot growth was investigated in winter wheat growing in lysimeters. Removal of half of the root axes at the beginning of stem elongation reduced shoot dry matter, determined 1 month after pruning, by 13% and grain yield by 8%. Removal of either the seminal or nodal root system during tillering reduced shoot dry weight, measured during the growing season, by 7% and grain yield by 25%. Root‐pruning had negligible, or only transient, effects on the concentration of nitrogen, phosphorus, potassium, magnesium and manganese in the shoots. The harvest index was not affected by root‐pruning.