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The influence of 6‐BA‐Application on Yield, Phosphorus and Nitrogen Uptake and Endogenous Cytokinin Concentrations in Carrots ( Daucus carota L. ) Grown in Phosphorus‐ or Nitrogen‐Depleted Soil
Author(s) -
Stiebeling Brigitte,
Pauler Bruno,
Neumann KarlHermann
Publication year - 1987
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19871500203
Subject(s) - phosphorus , nitrogen , daucus carota , nutrient , chemistry , agronomy , phosphate , dry matter , productivity , cytokinin , horticulture , biology , auxin , biochemistry , organic chemistry , gene , economics , macroeconomics
The decrease in yield productivity of carrots on nitrogen and phosphate depleted soil could be compensated by 6‐BA sprays. In nitrogen or phosphorus deficient plants the concentration of 2‐iP and 2‐iPA are lower than in the control and an increase could be observed following 6‐BA applications. Nitrogen or phosphorus uptake of deficient plants was virtually not affected by 6‐BA application. Consequently dry matter production per unit nutrient taken up by the plants (nutrient efficiency ratio) was increased as compared to the optimally with nitrogen and phosphate supplied control or the deficient plants.