Abstract: In order to study the characters of the fruit of Lonyan grape,with three consecutive years of observation and analysis on the berry weight,berry size(berry vertical diameter,berry transverse diameter,fruit shape index and volume),seed number,seed weight and sugar content of Longyan grape,it was found that these character indexes had a certain difference between different years;the average value of single berry weight was maximum in 2004 and the variation coefficient of single fruit weight was maximum in 2003.The fruit shape of Longyan grape was elliptical and round,which was a type of fruit with complete seeds;the single berry of Longyan grape most contains 2 to 3 seeds,and its proportion was respectively 69.4%,83.4% and 82.3%.Through two years of analysis on the grape grain sugar content,it was found that the average grape berry sugar content was respectively 16.03% and 15.89%,and the distribution frequency of the content of sugar more than 14% respectively occupied 83.42% and 82.29%.There was a certain correlation on various fruit quality indexes of Longyan grape,and there was a very significantly positive correlation on single berry weight,seed number,seed weight,berry vertical diameter,berry transverse diameter,volume and other characters;the fruit shape index was uncorrelated to the berry weight and sugar content,which showed that the fruit morphology of Longyan grape had no influence on the weight and sugar content of the berry.There was a very significantly or significantly negative correlation on fruit shape index,seed number and seed weight,which showed that the fruit morphology had influence on the seed number and weight;through deduction,the seed number and weight of the elliptical fruit grain were small and the seed number and weight of the round fruit grain were large.The correlation on the sugar content and other characters had a certain difference between different years;there was weak correlation on sugar content,berry weight and berry vertical diameter in 2004 and there was weak correlation between sugar content and seed number in 2005.The fruit of different parts of grape cluster had a certain difference in the morphology and seed content;the base had maximum fruit shape index,highest sugar content and minimum seed number and seed weight.The tip had minimum fruit shape index,lowest sugar content and maximum seed number and seed weight.

Key words: Grape, Longyan, Berry weight, Seed number, Seed weight, Sugar content

CLC Number: 

• S663.03