摘要
在田间试验条件下,以巨峰葡萄为材料,研究了果实膨大期施用高效生物钾肥和磷酸二氢钾对葡萄叶片光合特性和果实品质的影响。结果表明,根施300倍高效生物钾肥和叶面喷施0.2%磷酸二氢钾显著促进了巨峰葡萄叶片叶绿素合成,提高了叶片净光合速率(Pn)和叶绿素荧光参数PSⅡ实际光化学效率(ΦPSⅡ)、潜在光化学活性(Fv/Fo)、光化学猝灭系数(qP),降低了非光化学猝灭系数(NPQ)值,提高了果实硬度和可溶性固形物含量,促进了果实着色,其中,根施300倍高效生物钾肥效果最好。
The effect of high-efficient biological potassium fertilizer and potassium dihydrogen phosphate fertilizer for grape in different application methods on photosynthetic characteristics and quality of Kyoho grape were studied in field experiment, the results showed that the application in root with 300 diluted liquid of high-efficient biological potassium fertilizer and 0.2 % potassium dihydrogen phosphate fertilizer used on leaves could promote the synthesis of chlorophyll, significantly increase SPAD value, photosynthetic rate, the chlorophyll fluorescence dynamics parameters, φPSⅡ ,Fv/Fo, qP and decease non-photochemical quenching efficient （NPQ） in leaves. High-efficient biological potassium fertilizer and potassium d/hydrogen phosphate fertilizer for grape application also increased the soluble solid content in grapes,fruit firmness and promoted the coloring formation of fruit. The application in root with 300 diluted liquid of High-efficient biological potassium fertilizer was the best.
出处
《西南农业学报》
CSCD
北大核心
2010年第2期440-443,共4页
Southwest China Journal of Agricultural Sciences
基金
上海市科技兴农推广项目(沪农科推字2007第6-8号)
上海市科技兴农推广项目(沪农科推字2007第2-9号)
关键词
葡萄
生物钾肥
光合特性
叶绿素荧光
品质
Grape
Biological potassium fertilizer
Photosynthetic characters
Chlorophyll fluorescence
Quality
