Evaluation of some newly introduced sugar beet cultivars under Egyptian north-delta conditions [electronic resource]:bII- quality parameters.

Includes references.

This work was carried out to evaluate fourteen imported sugar beet cultivar under the farm condijions of at Abo Taha Village, Belkas district, Dakahlia Govemorate to determine their merij as possible candidates to be distributed to farmers. The work was carried out during 2008-2009 and 2009-2010 seasons at Belkas, Daqahlia region (latitude 31"15'0· N). Seven of the evaluated cultivars, namely Henrike, BTS 899, Beretta, Lagon, Lp15, Lp16, and Avantage belonged to monogerm type while another group of seven cuijivars, namely; Monte Bianco, Monte Baldo, Monte Rosa, Swallow, Top, Capel, and Floima belonged to mulli-germ type. The main findings of this work could be summarized as follows: 1- The differences reported among mono-germ and muij~germ seed type were insignificant. 2- Differences due to the genetic makeup of the examined cuijivars were significant for most determined traits. 3- Sugar recovery % of the superior cultivars M. Rosa, Swallow, and Top (muijigerm), in addition to the monogerm Henrike and Avantage was controlled mainly by their superiority in pol% and or quality index values. These cuijivars were the most stable ones in both seasons. In conclusion, it is evident that varietal differences control qualijy parameters that are of major interest from manufacturers' point of view. For such reason, it is evident that the high quality mUiji-germ cultivars M. Rosa, Swallow, and Top, in addition to the mono-germ Henrike and Avantage should be promoted for growing among farmers. However, root production which interferes significantly in determining total recovered sugar per feddan could cause some of these high quality cultivers to be out of the farming list.

Summary in Arabic.

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