Effect of cultivar and harvest date on quantitative and qualitative characteristics of autumn sown sugar beet in Kashmar region.

Subject Areas : crop production

سعيد  سبزواري ¹ (دانشگاه آزاد اسلامي، واحد نيشابور، دانشجوي كارشناسي ارشد زراعت، نيشابور، ايران )

Received: 2011-01-31 Accepted : 2011-10-30 Published : 2010-10-09

Keywords: autumn sown, white sugar content percentage, bolting, white sugar yield,

Abstract :

To investigate the effects of cultivar and harvest date on quantitative and qualitative characteristics of autumn sown sugar beet, an experiment was conducted in Kashmar agricultural research station in 1389 - 1388. The experiment was conducted as randomized complete block design with four replications and split plot arrangement. The main plots included four cultivars (7112, SBSI002, GIADA and RIZOFORT) and factors of subplot were three harvest dates (April 20th, May 10th and May 30th). The characteristics included root yield, bolt percentage, sugar content percentage, white sugar content percentage, sugar yield, white sugar yield, for each harvest Dates was measured. Results showed that among varieties of sugar beet, root yield, bolt percentage, sugar content percentage and white sugar content percentage, were different significantly. The Giada was the most suitable cultivar for Kashmar region because of the highest root yield ( 49.17 tons per hectare) and the lowest percent of bolting. All characteristics by harvest date were affected significantly. The interaction effect of cultivar and harvest date were significant on Root yield, Bolt percentage, Sugar content percentage, white sugar content percentage, sugar yield, white sugar yield. For achieving the highest Root yield, Sugar content percentage, white sugar content percentage, sugar yield, white sugar yield, the harvest date of May 30th is recommended for the Kashmar region.

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