短節間カボチャ'つるなしやっこ'の収量性および省力性(栽培管理・作型)

概要

論文の詳細を見る
Yielding and labor saving ability of a short-internode variety of squash (Cucurbita maxima Duch. var. Tsurunashiyakko) was compared with the vining- type variety 'Ebisu'. The yield of 'Tsurunashiyakko' increased as the row width was decreased from 2.0 m to 1.0 m (plant populations from 100 to 200 plants per are), while average fruit weight declined adversely. As a result, a row width of 1.5 m seemed to be appropriate for the optimum production of 'Tsurunashiyakko'. To save labor in nursing seedlings, 3 methods (25 days in a 12 cm plastic pot, 7 days in a 45 mL cell tray (72 cells per tray) and direct sowing) were compared. 'Tsurunashiyakko' has a high stability of fruit set, and a yield of one fruit per plant was ensured in all treatments. For 'Ebisu', the number of fruit decreased as the nursing period was shortened. This suggests that it is possible to save labor without reducing yield in 'Tsurunashiyakko', however, this is not so in the case of 'Ebisu'. In comparison with nursing 'Ebisu' seedlings in a 12 cm plastic pot, approximately 75% of the labor reduction, as well as a yield of more than 200 kg/a, were ensured when 'Tsurunashiyakko' were nursed in a 45 mL cell tray. The results indicate that 'Tsurunashiyakko' has a high adaptability to labor- saving cultivation.
園芸学会の論文
2004-09-15