Net photosynthesis, dark respiration, specific leaf weight, and growth of young apple trees as influenced by light regime

Journal Article · Fri Nov 01 04:00:00 EST 1974 · J. Am. Soc. Hortic. Sci.; (United States)

OSTI ID:6854010

Barden, J A

Eight different light treatments did not affect shoot length, leaf number, or total leaf area of young Red Yorking apple (Malus pumila Mill.) trees grown in a greenhouse. Dry weights of leaves and stems were suppressed by 80% shade. Net photosynthesis Pn, dark respiration (Rd), and specific leaf weight (SLW) were higher in sun than in shade leaves and adaptations in all 3 parameters occurred as a result of changing light conditions, even after leaf expansion had ceased. 5 figures, 1 table.

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg
• OSTI ID: 6854010
• Journal Information: J. Am. Soc. Hortic. Sci.; (United States), Journal Name: J. Am. Soc. Hortic. Sci.; (United States) Vol. 99:6; ISSN JOSHB
• Country of Publication: United States
• Language: English

Related Subjects

553000* -- Agriculture & Food Technology
60 APPLIED LIFE SCIENCES
APPLES
BIOLOGICAL EFFECTS
BUILDINGS
CHEMICAL REACTIONS
DENSITY
ELECTROMAGNETIC RADIATION
FOOD
FRUIT TREES
FRUITS
GREENHOUSES
GROWTH
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHYSICAL PROPERTIES
PLANT GROWTH
PLANTS
PRODUCTIVITY
RADIATIONS
RESPIRATION
SHADING
SUN SHADES
SYNTHESIS
TREES
VISIBLE RADIATION