during 2001-2005, 79 isolates of rhizoctonia from seed rot, seedling damping –off, root rot and dry rot canker of sugar beet were collected. based on morphological characteristics, number of nuclei per cell and hyphal diameter, isolates were classified in two groups, binucleate (4 isolates) and multinucleate (75 isolates). among 75 multinucleate isolates ,27 isolates were identified as  ag4, 28...

this study was conducted to determine the yield response factor (ky) of sugar beet to deficit irrigation at different growth stages. a field experiment was conducted in sharekord agricultural research station over two growing crop seasons (1996 -1997) using a randomized complete block design with three replications. plots were assigned to five levels of deficit irrigation treatments: e0 (full i...

this study aimed to modify the current purchase formula of sugar beet into a formula with different coefficients with respect to sugar percentage of autumn sugar beet. ahvaz sugar factory was selected as an autumn sowing factory in iran and 163 samples were randomly taken at different delivery times in 2007 (28th april to 27th june).  from each truck, one sample was taken and sugar content, wat...

in order to improve the efficiency of irrigation systems and investigate their impact on the pest population levels, furrow and sprinkler irrigation systems were compared in sugar beet fields. in this study, three different fields were chosen and irrigated by one of the furrow, classic and center pivot irrigation systems.  in each field, 20 plots were randomly selected of which 10 plots were ma...

background and objectives: the most important determining factor in sugar beet root yield is seed quality. seeds with germination percentage are lower; the germination is slow and non-uniform, will produce plants that initial growth is slow. according to various studies indicate that harvest time is an important factor influencing the quality of sugar beet seed. in the early harvest of sugar be...

in this study, analysis of actual data collected from sugar beet hybrid monogerm seed producers in the 2001 growing season and laboratory seed samples showed that delay in steckling sowing resulted in the reduction of raw and pure sugar beet seed yield and the increase of undersize seed portion. non-significant effect of sowing dates on unkernel seed percent showed that the high temperatures wi...

in order to determine the optimum sowing and harvesting dates of two autumn sugar beet cultivars (bete vulgaris l.) and develop the planting area of this crop, the present research was conducted in fasa, iran during 2005-2008. the experiment was carried out in split-split plots based on randomized complete block design (rcbd) with four replications. three sowing dates (september 27, october 17 ...