Effect of Environment upon the Growth and Development of Raspberry Canes

摘要: THE red raspberry (Rubus idaeus L.) has a perennial root system ; but the shoots (‘canes’) are normally biennial, elongating in first season and fruiting dying second. Replacement canes may arise directly from roots, as suckers, or dormant buds at about ground-level on canes. This sequence of growth development appears to be largely governed by, response to, various environmental factors, primarily those light temperature. The effects these factors being studied by growing plants under controlled conditions which length day, light-intensity temperature can varied independently.