<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">This research was focused on determination of the correlation between soluble sugar content in green asparagus (<italic>Asparagus officinalis</italic> L.) spears and yield. In 2000-2002, green spears of the cultivar 'Thielim' were cut every day from the end of April to the middle of June. Sucrose, glucose, and fructose content was determined every 10-14 days by means of an HPLC method. The content of fructose was not correlated but the ratio of fructose to glucose content was positively correlated with the yield (r=0.92). When the ratio of fructose to glucose content in spears increased by 0.13, the yield increased by about 1 t·ha-1. Content of glucose, sucrose and soluble sugar were negatively correlated with yield (r = -0.76 r = -0.77 and -0.79, respectively). When glucose, sucrose and soluble sugar content in spears decreased by 0.29 mg·g-1, 0.20 mg·g-1 and 0.85 mg·g-1, respectively, the yield increased by about 1 t·ha-1. During the first twenty days of harvest the calculated amount of soluble sugar accumulated in harvested spears was correlated with the yield in the remaining harvest period as well as in the whole harvest season. The effect of temperature and solar radiation on the yield and sugar content in spears is discussed in the paper.</abstract>

This research was focused on determination of the correlation between soluble sugar content in green asparagus (Asparagus officinalis L.) spears and yield. In 2000-2002, green spears of the cultivar 'Thielim' were cut every day from the end of April to the middle of June. Sucrose, glucose, and fructose content was determined every 10-14 days by means of an HPLC method. The content of fructose was not correlated but the ratio of fructose to glucose content was positively correlated with the yield (r=0.92). When the ratio of fructose to glucose content in spears increased by 0.13, the yield increased by about 1 t·ha-1. Content of glucose, sucrose and soluble sugar were negatively correlated with yield (r = -0.76 r = -0.77 and -0.79, respectively). When glucose, sucrose and soluble sugar content in spears decreased by 0.29 mg·g-1, 0.20 mg·g-1 and 0.85 mg·g-1, respectively, the yield increased by about 1 t·ha-1. During the first twenty days of harvest the calculated amount of soluble sugar accumulated in harvested spears was correlated with the yield in the remaining harvest period as well as in the whole harvest season. The effect of temperature and solar radiation on the yield and sugar content in spears is discussed in the paper.

Sugar Content in Spears Versus Asparagus Yielding

Department of Vegetable Crops, August Cieszkowski University of Agriculture in Poznań, Dąbrowskiego 159, 60-594, Poznań, Poland

Department of Chemistry, August Cieszkowski University of Agriculture in Poznań, Wojska Polskiego 75, 60-625, Poznań, Poland

Journal of Fruit and Ornamental Plant Research

{"article-title":"Sugar Content in Spears Versus Asparagus Yielding"}

This research was focused on determination of the correlation between soluble sugar content in green asparagus (Asparagus officinalis L.) spears and yield. In...

Sugar Content in Spears Versus Asparagus Yielding

Publié en ligne: 31 déc. 2007

Pages: 127 - 136

DOI: https://doi.org/10.2478/v10032-007-0037-1

Mots clés
sucrose, fructose, glucose, temperature, radiation, yield

This content is open access.

Sugar Content in Spears Versus Asparagus Yielding

Publié en ligne: 31 déc. 2007

Pages: 127 - 136

DOI: https://doi.org/10.2478/v10032-007-0037-1

Mots cléssucrose, fructose, glucose, temperature, radiation, yield

This content is open access.

Mots clés
sucrose, fructose, glucose, temperature, radiation, yield