外源物质对甜柿果实品质的影响

为探讨外源物质对甜柿果实品质的影响,试验对甜柿品种富有的果实喷洒一定浓度的谷氨酸、6-BA、GA_3、尿素和磷酸二氢钾溶液.结果表明,以上5种外源物质均极显著地提高了果实的VC含量,在一定程度上降低了游离氨基酸和蛋白质的含量.除尿素外,其他4种外源物质明显提高了果实的光洁度,降低了蒂隙果的发生.综合评价表明,谷氨酸能明显改善果实品质,磷酸二氢钾和6-BA次之.赤霉素明显推迟了果实着色,使单果重显著偏轻、糖分含量降低.果皮中色素的含量与色泽呈显著的相关关系,叶绿素、类胡萝卜素、叶绿素/类胡萝卜素比值的相关系数分别达到了-0.897、0.854、-0.964.

Influence of Allogenic Substances on the Quality of Non-astringent Persimmon

To discuss the influence of allogenic substances on the quality of non-astringent persimmon, certain concentration of glutanic acid,6-BA,GA_3,urea and KH_2PO_4 were sprayed on fruits of Fuju.The results showed that these 5 kinds of allogenic substances increased VC content obviously, and reduced the content of protein and issociation amino acid in certain degree. Besides the urea, other 4 kinds of allogenic substances enhanced the fruit smooth and reduced the dehiscent rate obviously.Synthetic evaluation showed that ghtanic acid obviously improved fruit quality;KH_2PO_4 and 6-BA,were the next.GA_3 obviously postponed fruit coloration,depressed fruit heavy and sugar content.The pigment content in fruit peel was remarkably correlated with the luster,the correlation coefficients of Chl,Car,the Chl/Car were -0.897,0.854,-0.964 respectively.