บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Production temperatures influence growth and physiology of leatherleaf fern

Stamps, R.H., Nell, T. A. and Barrett, J. E.

HortScience Vol: 29 Issue: 2 Pages: 67-70.

1994

บทคัดย่อ

Production temperatures influence growth and physiology of leatherleaf fern.

Leatherleaf fern [Rumohra adiantiformis (Forst.) Ching]fronds produced under a high-temperature regime (HTR, 30 day/25C night) grew faster and produced sori earlier than those in a low-temperature regime (LTR, 20 day/15C night). Abaxial diffusive conductance was lower for HTR-grown fronds. Light-saturated net CO2 assimilation rates (Pn) and dark respiration were lower for HTR fronds, but light-saturated Pn efficiencies (chlorophyll basis); light compensation points; and soluble sugars, starch, and nonstructural carbohydrate levels were similar for the two regimes. Transpiration and water-use efficiency (mass basis) at light saturation were similar for fronds from both temperature treatments. Comparison of physiological characteristics of fronds from the two temperature regimes revealed no differences that might account for reduced postharvest longevity of fronds produced at the higher temperatures.