GROWTH OF NONPAREIL ALMOND TREES AFTER 20 C STORAGE UNDER VARYING CO2 AND C2H4 CONCENTRATIONS

Autor: Gene Mayer, Gordon Mitchell, Wilbur Reil
Rok vydání: 1990
Předmět:
Zdroj: HortScience. 25:1153c-1153
ISSN: 2327-9834
0018-5345
DOI: 10.21273/hortsci.25.9.1153c
Popis: Nursery grown and budded one year old .8 cm `Nonpareil' almond trees were placed bareroot in sealed containers at 2°C and subjected to concentrations of 0, 1, 3, 5% CO2, 0, 0.5, 1, 2 μl·l-1 C2 H2, or combinations of both gases. All trials were conducted under 100% R. H. and constant air flow. Trees were removed after 10 or 20 weeks and then grown in 19 1. containers for approximately 12 weeks before grading.Growth was the same for all concentrations of CO2 after 10 weeks but caused a 20 and 32% decrease in shoot growth at 3 and 5% concentrations after 20 weeks. C2H4 caused 34, 34 and 89% decrease after 10 weeks and 78, 83 and 100% decrease of shoot growth after 20 weeks. Root growth was also seriously decreased.C2H4 caused no growth decrease after 10 weeks when 3 or 5% CO2 was present. After 20 weeks CO2 only partially offset the detrimental effect of C2H4.
Databáze: OpenAIRE