Initial Crown Diameter of Transplants Influences Marketable Yield Components of Two Strawberry Cultivars in Annual Hill Production System

Effect of plant type and delayed planting on growth and yield parameters of two short day strawberry (Fragaria x ananassa Duch.) cultivars in open field

“…This is reasonable since transplants with large crowns are shown to give a better plant development evaluated by several parameters like leaf area, fruit yield etc. [4][5][6], and in this case the strong A15 transplants resulted in better plant development than the mixed standard of B1 transplants (6-14 mm). However, B1 of 'Sonata' developed better than similar transplants of 'Korona'.…”

“…A regression analysis of yield components versus initial crown diameter revealed a positive relationship between total fruit numbers produced per plant and initial crown size for two cultivars. Also total weight of marketable fruit produced per plant was positively associated with initial crown diameter of transplants [5]. Later it was shown that a mix of crown diameters larger than 10 mm resulted in 23% higher yield on average over two seasons than a mix of bare root transplants with crown diameters below 10 mm [7].…”

“…Later, several authors have shown that increasing crown diameter from 6 to15 mm led to more flowers and higher yield and increased leaf area and ascorbic acid content in the fruit [2,[5][6][7]. However, in the cooler climates of the Nordic countries, where the transition to inductive short day conditions is delayed compared with lower latitudes, even plants with large crown diameter has not given plants with satisfactory flowering and yield potential (Sønsteby, unpublished results).…”

Correlation between selected parameters of planting material and strawberry yield

“…Successful strawberry production depends upon a supply of high quality plants (Radajewska and Aumiller 1995, Le Miere et al 1998, Perez de Camacaro et al 2004, Shokaeva 2004, Johnson et al 2005). According to Gafke et al (1993), using low quality plants leads to a high loss of yield and is impossible to compensate for.…”

“…A number of components have been shown to influence strawberry yield, including the number of leaves (Lacey 1973, Albregts and Howard 1985, Lieten 2000, crown diameter (Hughes 1967, Kramer and Schultze 1985, Lieten 1991, Le Miere et al 1998, Perez de Camacaro et al 2004, Johnson et al 2005, Hochmuth et al 2006 and initial plant weight (Schrevens et al 1989, Takeda et al 2004.…”