ビワ（Eriobotrya japonica（Thunb.）Lindl.）における結果枝の太さおよび種類と果実重との関係について
| Jazyk: | japonština |
|---|---|
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | 鹿児島大学農学部農場研究報告 = Bulletin of the Experimental Farm Faculty of Agriculture,Kagoshima University. 40:7-11 |
| ISSN: | 0386-0132 |
| Popis: | 唐湊果樹園におけるビワ果実の大果生産方法の確立を図るため，‘長崎早生’（露地栽培・施設栽培），‘なつたより’（露地栽培・施設栽培），‘茂木’（露地栽培）を用いて，結果枝の種類および太さと果房重および果実重の関係性について調査した．その結果，供試材料の中で最も枝が太く大果になるのは‘なつたより’（露地栽培）であった．結果枝の種類別では，‘なつたより’（露地栽培）を除くすべての栽培環境および品種で中心枝が副梢より太かった．‘なつたより’（露地栽培）と‘茂木’は，副梢より中心枝で果房重および果実重が重かった．一方，‘長崎早生’（露地栽培・施設栽培）は，副梢と中心枝で果房重および果実重が同等，もしくは副梢の方が高い値を示した．結果枝の直径と果房重の関係は，すべての品種で有意な正の相関が認められた．その関係性は中心枝よりも副梢の方が強かった．特に‘なつたより’（露地栽培）でr=0.72と他品種より高い値を示した．結果枝の直径と果実重の関係性は，結果枝の直径と果房重の関係性より弱かった．以上より，唐湊果樹園におけるビワ大果生産方法として，大果になりやすい‘なつたより’を露地栽培すること，大果になりやすく収量も増加するため，中心枝を太く充実させること，太い副梢も利用し収穫に結び付けること，これらに留意して栽培管理を行うと良いことが示唆された．このことは，今後のビワ実習教育のための一助となると考えられた． This experiment was done to improve farm training education and to create the method to produce large fruits of loquat in Toso Orchard, Faculty of Agriculture, Kagoshima University. Using‘ Nagasakiwase’ (outdoor or greenhouse cultivation),‘ Natsutayori’ (outdoor or greenhouse cultivation) and Mogi (outdoor cultivation), we investigated the relationship between different type or diameter of bearing shoot and a fruit cluster weight or a fruit weight.‘ Natsutayori’ (outdoor cultivation) had the largest shoot diameter and the fruit size compared with those in the other cultivars and the other cultivation environment. The diameter of central shoots was larger than that of the lateral shoots in all cultivars and cultivation environment without ‘Natsutayori’ (outdoor cultivation). A fruit cluster weight and a fruit weight of central shoots in ‘Natsutayori’ (outdoor cultivation) and ‘Mogi’ were heavier than those of lateral shoot. On the other hand, a fruit cluster and a fruit weight in ‘Nagasakiwase’ (outdoor and greenhouse cultivation) were almost equal to those in the central shoot and the lateral shoot, or higher value in the lateral shoot. The diameter of bearing shoot and the fruit cluster weight of all cultivars were showed the significant correlations positivly. These correlation coefficients were generally higher in the lateral shoot than in the central shoot. In particular ‘Natsutayori’ (outdoor cultivation) showed a high correlation coefficient (r=0.72) than other cultivars. Correlation between bearing shoot diameter and a fruit weight was weaker than correlation between bearing shoot diameter and a fruit cluster weight. These results indicated that in order to produce large loquat fruits in Toso Orchard, it is suitable to cultivate‘ Natsutayori’ which bears to harvest the larger fruit in outdoor cultivation. These results will also contribute to improve farm training education. |
| Databáze: | OpenAIRE |
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