Effect of Planting Date on Productivity of Some Sugar Beet Varieties Under Kom Ombo Conditions.

Abstract

A field experiment was carried out at Kom-Ombo Agricultural research Station Farm, (latitude of 24 o 28′ N and longitude of 32 o 57′ E), Aswan Governorate, during 2019-2020 and 2020-2021 seasons to study the effect of sowing dates on growth, technological and yield traits of some sugar beet varieties under Kom Ombo conditions. Randomized complete lock design (RCBD) using a strip plot arrangement with three replications were used. Planting dates (30 th September, October 15 th and 30 th October) were allocated horizontally while, sugar beet cultivars of multi-germ (Betamax, Cleopatra and Tarbelli) were allocated vertically. The results indicated that the tested planting date had a significant effect on root length (cm), root diameter (cm), root weight (kg), sucrose percentage, purity percentage, root and sugar yield in both seasons, as well as sodium percentage in the first season only. Furthermore, the tested sugar beet cultivars or varieties or genotype had a significant effect on most studied traits in both seasons. In additions, the interaction between planting date and sugar beet cultivars or varieties had a significant effect on sugar yield. Trait in the two seasons. Planted sugar beet cultivar Tarbelli on October 15 achieved the maximum average values of sugar yield. Which were 4.733 and 4.995 Ton/fad. In the first and second seasons, respectively. On the contrary, the minimum average values of sugar yield. Which were 1. 761 and 1.679 Ton/fad. Were recorded from planted sugar beet cultivar Betamax on September 30 in the two respective seasons

Biplot analysis for yield and quality traits and comprehensive evaluation of sugar beet varieties treated by abscisic acid under water deficit stress

“…Research by Harris (2015), Sah et al (2016), andLi et al (2017), has shown that abscisic acid regulates the growth of primary roots and the branching of lateral roots in plants. These results are in line with those of Awadalla et al (2022), who discovered that during the two seasons, the tested sugar beet cultivars significantly influenced the root diameter trait.…”

“…The sugar beet Shantala-KWS variety recorded the highest values of sucrose % and TSS%, as did the Husam variety in TSS%. Awadalla et al (2022) found that the tested sugar beet cultivars, varieties, or genotypes had a significant effect on the sucrose trait in both seasons. Concerning the effect of ABA, the result in Table 4 revealed that the highest values of sucrose % and TSS% of sugar beet root were recorded with ABA at 3000 ppm, while the lowest ones were recorded with control treatments (water spray).…”

Nitrogen Use Efficiency in Sunflower (Helianthus Annuus L.) Influenced by Various Fertigation and Bed Planting Techniques

“…Sunflower stood at second rank to soybean for production and extraction of edible oil in the world. The sunflower oil signifies approximately 15 percent of the world oil production (Ahmed et al,2023).…”

“…Sunflower as a non-traditional crops has the potential to close the breach between national production and edible oil import. Oil contents of 25-48% and protein contents of 20-27% are present in seed of sunflower (Ahmed et al,2023). Sunflower oil is delicious and high in A, D, E, and K vitamins.…”

“…Bed planting, even without conservation tillage, provides new and improved weed control, water management, and fertilizer management options, as well as reduced crop lodging and some tillage reduction. Farmers say that with the right variety, yields in bed plantation can be increased by at least 10%, production costs may be lowered by 20-30%, and irrigation water requirements can be decreased by up to 35% when compared to standard flat planting (Ahmed et al,2023) Because to improper application procedures, fertilizer yield is far lower than real potential. It has been noted that applied fertilizer may be wasted owing to run-off and leaching, which might have been utilized efficiently with suitable application methods.…”