N. Pipattanawong et al., GROWTH AND DEVELOPMENT OF 4 DAY-NEUTRAL STRAWBERRIES UNDER HYDROPONICSYSTEM WITH OR WITHOUT CHILLING, Engei Gakkai Zasshi, 64(1), 1995, pp. 95-102
Variations in vegetative and reproductive growth patterns in response
to chilling treatment were evaluated in four day-neutral strawberries
(Fragaria x ananassa Duch. cvs. 'Miyoshi', 'Summerberry', 'Enrai' and
'Everberry') under the NFT (nutrient film technique) system in plastic
house. The results indicated that vegetative and reproductive growth
of all cultivars responded to chilling. Apparently, the petiole length
and leaf area responded to chilling after planting until early June,
while the chilling had little effect on leaf production until April. C
hilling also promoted flower production of the four cultivars so that
it appears to be the dominant factor governing yield. 'Everberry' and
'Enrai' evidently have low yields and adaptability, and cannot be mani
pulated satisfactorily under the NFT system whereas 'Summerberry' was
intermidiate and responded favorably to manipulation. We conclude from
our findings that 'Miyoshi' grew and yielded better under the NFT sys
tem than did the other three cultivars with or without chilling.