Pruning-wound protectants for trunk-disease management in California table grapes

New Stable QTLs for Berry Firmness in Table Grapes

Berry firmness is one of the most important quality traits in table grape production and, consequently, a key aspect for table grape breeding programs. To identify the genes determining the berry firmness in grapes, a progeny of Ruby Seedless × Sultanina (n = 137) was evaluated during three consecutive seasons. Results showed that even though the heritability was ~90%, season had an important e...

Trunk Diameter Fluctuation Indicators in Table Olive

2 The aim of this study was to establish threshold TGR and MDS values which could be 3 used in regulated deficit irrigation in future work. Three irrigation treatments were 4 performed during three seasons in a 37 year-old table olive orchard in Seville (Spain). 5 Control treatment was irrigated with 125% of the crop evapotranspiration. Regulated 6 deficit irrigation (RDI) treatments were perfo...

Physiology of Minimal versus Normal Pruning of Concord Grapes

With the economic pressures for high yields and production efficiency, there has been increasing use of the method of minimal or mechanical pruning due to its reduced inputs and higher yields. Yet, many times the yields on minimally-pruned vines may be too high for the juice Brix and quality required by the industry. Since this production method changes many of the basic relationships we have d...

Yeasts Occurring on Grapes and in Grape Products in California.

Aroma characterization based on aromatic series analysis in table grapes

Aroma is an important part of quality in table grape, but the key aroma compounds and the aroma series of table grapes remains unknown. In this paper, we identified 67 aroma compounds in 20 table grape cultivars; 20 in pulp and 23 in skin were active compounds. C6 compounds were the basic background volatiles, but the aroma contents of pulp juice and skin depended mainly on the levels of esters...