Nitrogen for growth of stock plants and production of strawberry runner tips

Bragantia

Djeimi Isabel Janisch¹  Jerônimo Luiz Andriolo¹  Vinícius Toso¹  Kamila Gabriele Ferreira Dos Santos²  Jéssica Maronez De Souza² 

[1],Universidade Federal de Santa Maria Centro de Ciências Rurais Programa de Pós-Graduação em AgronomiaSanta Maria RS ,Brasil

关键词: Fragaria x ananassa;    hydroponics;    propagation;    fertigation;    Fragaria x ananassa;    hidroponia;    propagação;    fertirrigação;   

DOI  :  10.1590/S0006-87052012005000027

来源: SciELO

【 摘 要 】

The objective of this research was to determine growth and dry matter partitioning among organs of strawberry stock plants under five Nitrogen concentrations in the nutrient solution and its effects on emission and growth of runner tips. The experiment was carried out under greenhouse conditions, from September 2010 to March 2011, in a soilless system with Oso Grande and Camino Real cultivars. Nitrogen concentrations of 5.12, 7.6, 10.12 (control), 12.62 and 15.12 mmol L-1 in the nutrient solution were studied in a 5x2 factorial randomised experimental design. All runner tips bearing at least one expanded leaf (patent requested) were collected weekly and counted during the growth period. The number of leaves, dry matter (DM) of leaves, crown and root, specific leaf area and leaf area index (LAI) was determined at the final harvest. Increasing N concentration in the nutrient solution from 5.12 to 15.12 mmol L-1 reduces growth of crown, roots and LAI of strawberry stock plants but did not affect emission and growth of runner tips. It was concluded that for the commercial production of plug plants the optimal nitrogen concentration in the nutrient solution should be 5.12 mmol L-1.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License