植物生長調節劑對「巨峰」葡萄冬果果實品質之影響

Effects of PGRs on Quality of Winter 'Kyoho' Grape

林玉茹(Yu-Ju Lin) ； 葉文彬(Wen-Pin Yeh) ； 張致盛(Chih-Sheng Chang)

《臺中區農業改良場研究彙報》 108期 (2010/09) Pp. 45-56

https://doi.org/10.6956/BTDAIS.201009.0045

摘要

本試驗調查植物生長調節劑於「巨峰」葡萄冬果幼果期之處理對提高果實品質之效果。滿花後20日以GA3處理，其果穗重於調查期間均高於對照組，添加展著劑1,000倍之效果均較未添加者佳，以20 ppm GA3添加展著劑處理組採收時果穗重顯著較高，較對照組增加22%，果粒重增加25%；以20或25 ppm GA3、無論添加或不添加展著劑，其果長與果寬均高於33 ppm處理組或對照組，但轉色級數與總可溶性固形物較低、可滴定酸較高。而以GA3混合cytokinin類物質處理後，各處理穗重較對照組增加8～21%，果粒重增加11～19%，而添加Cytex者粒重增加效果明顯高於其他處理組與對照組；各處理組果長、果寬、硬度、總可溶性固形物與可滴定酸均較對照組高且轉色較佳。

關鍵字

葡萄 ； 冬果 ； 果實增大

並列摘要

A significant problem in winter 'Kyoho' grape in Taiwan is the cluster weight usually not enough, in which the berry size is considered the primary factor in cluster weight. The benefit of different plant growth regulators (PGRs) on the enlargement of winter 'Kyoho' grape berry was evaluated in this study. The results of various treatments of PGRs in winter 'Kyoho' grape on the 20th day after full bloom showed that 20 ppm GA3 application with surfactant enhanced berry and cluster weight 25% and 22%, respectively. Treatments with 20 and 25 ppm GA3 had better effects than 33 ppm GA3 and control on berry length and width regardless of surfactant but the coloration index and total soluble solids were lower at harvest. On the other hand, our results was shown that postive effects on berry and cluster weight were more significant in those treated with GA3 contained cytokinins (such as Cytex) compared with those treated with either GA3 or cytokinins alone.

並列關鍵字

winter grape ； fruit enlargement ； GA3 ； Cytokinin