scholarly journals EFFECT OF INTERCROPPING SYSTEM AND SOWING DATES OF WHEAT INTERCROPPED WITH SUGAR BEET

2012 ◽  
Vol 3 (12) ◽  
pp. 3101-3116 ◽  
Author(s):  
A. Abou-Elela
Keyword(s):  
Sugar Beet ◽  
Sowing Dates

scholarly journals COMPARISON OF SPRING AND SUMMER SOWING OF SUGAR BEET GENOTYPES AT DIFFERENT HARVEST DATES TO SHIFT FROM TRADITIONAL CROP TO CASH CROP IN CENTRAL IRAN

2021 ◽  
Vol 52 (1) ◽  
pp. 232-248
Author(s):  
Vahidi & et al
Keyword(s):  
Sugar Beet ◽  
Agronomic Traits ◽  
Growth Period ◽  
Harvest Date ◽  
Cash Crop ◽  
Sowing Dates ◽  
Raw Sugar ◽  
Growth Degree Days ◽  
Spring Sowing ◽  
White Sugar

This study was carried out in Karaj, Iran in 2017 and 2018 to assess the efficacy of summer sowing (June 22) versus spring sowing (April 20) of six sugar beet genotypes at three harvest times (October 13, November 2, and November 23) via the measurement of catalase (CAT), malondialdehyde (MDA), and agronomic traits. Results showed that in both sowing dates, higher growth and temperature were related to higher CAT activity and MDA content, and the maximum MDA and CAT activity were observed in 1700−1900 growth degree days (GDD). Genotypes responded to the shortening of the growth period differently. The best genotypes for summer sowing were found to be ‘Paya’, ‘IR7’, and ‘Pars’ when a combination of the least response to delayed sowing and the highest root yield in the summer sowing conditions was considered. Compared to the spring sowing, the summer sowing decreased white sugar yield (WSY) of all cultivars by 28.3−50.5% in the first year and 5.3−32.4% in the second year. ‘Paya’ and ‘IR7’ were the most capable cultivars in preserving WSY so that they maintained 70% of their yields. In addition, the genotypes exhibited their highest WSY at the November 23 harvest date so that root, raw sugar and white sugar yields were 41.21, 6.35 and 5.02 t ha−1 higher at the November 23 harvest date than at the October 13 harvest date, respectively. Based on the results, if summer-sown sugar beets are considered as a cash crop in rotation with grains and there is no limitation on water supply, it can then be recommended to farmers as it can make good profits for them.

scholarly journals Efect of sowing dates and seed rates of flax intercropped with sugar beet on productivity of both crops and competitive relationships

2021 ◽  
Vol 26 (6) ◽  
pp. 3074-3089
Author(s):  
ASEM M. K. ABD-RABBOH ◽  
YASER MAZROU ◽  
AMAL M. A. EL-BORHAMY ◽  
WILLIAM K. L. ABDELMASIEH ◽  
YASER HAFEZ ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Maximum Yield ◽  
Sowing Date ◽  
Economic Return ◽  
Zone Length ◽  
Yield And Quality ◽  
Sowing Dates ◽  
Yield Quality ◽  
Seed Yields ◽  
Flax Straw

The aim of intercropping flax on sugar beet is to increase the cultivated area with flax due to widely cultivated area of sugar beet. So, a field experiment was carried out to study the effect of various sowing dates and seed rates of flax intercropped with sugar beet on yield, quality and economic evaluation. The main-plots were assigned to three sowing dates of flax intercropped with sugar beet and the sub-plots were allocated to four seed rates of flax. The results show that sowing date of flax after 35 days from sowing (DFS) sugar beet resulted in the highest values of sugar beet yields and quality. Maximum values of flax straw and seed yields resulted from sowing flax after 21 DFS sugar beet. Intercropping sugar beet with flax at 12.5% from recommended seed rate on top sugar beet terraces attained the most elevated values of sugar beet yield and quality. Sowing flax at 50% from recommended rate resulted in the best values of flax technical and fruiting zone length, also straw and seed yield/hectare. The maximum yield and economic return of both crops were obtained from sowing flax at 12.5% from recommended rate after (21 or 35) DFS sugar beet.

scholarly journals Effect of sowing date and plant density on bolting of four sugar beet (Beta vulgaris L.) varieties

2015 ◽  
Vol 4 (2) ◽  
pp. 256-270
Author(s):  
Entessar Al-Jbawi ◽  
Waeel Sabsabi ◽  
Gharibo Gharibo ◽  
Abd El-Muhsien Al-Sayed Omar
Keyword(s):  
Sugar Beet ◽  
Plant Density ◽  
Agricultural Research ◽  
Sowing Date ◽  
The Other ◽  
Research Station ◽  
Sowing Dates ◽  
Plant Densities ◽  
Autumn Sowing ◽  
Plot Design

This experiment was conducted in Homs Agricultural Research Station, Homs, Syria during 2007/2008 and 2008/2009 seasons to study the effect of sowing date and plant density on bolting for four sugar beet varieties, tow are monogerm varieties i.e. Parade and Etna, while the other are multigerm varieties i.e. Nadir and Mammoth. Three sowing dates were applied, began from 15/9 to 15/10, the interval between the sowing dates was 15 days. Three plant densities were executed (133 000, 100 000 and 80 000 plantha-1). Split plot design was used with three replicates. The combined analysis exhibited the significant effect of varieties (V), sowing dates (S), and plant densities (D) on all types of bolting (Early, medium, late and total). Least significant test (L.S.D 0.05) clarified that early autumn sowing (15/9 and 1/10) increased total bolting percent 74.86 and 44.88 % respectively, as compared with date (15/10) 15.57% (control). The plant density (133 000 plant ha-1) decreased total bolting percent 43.56% as compared with the other plant densities (80 000 and 100 000 plant ha-1) 46.35 and 45.40% respectively. The results showed that the monogerm varieties were superior and more resistant to bolting as compared with the multigerm ones. DOI: http://dx.doi.org/10.3126/ije.v4i2.12647 International Journal of Environment Vol.4(2) 2015: 256-270

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