Effect of Cuscuta spp parasitization on sugar beet root yield and sugar content.

Author(s):  
Joel Felix ◽  
Joey Ishida
2011 ◽  
Vol 48 (No. 9) ◽  
pp. 418-423
Author(s):  
M. Antunović ◽  
D. Rastija ◽  
M. Pospišil

Aiming at determination differences in leaf and root potassium concentration of diverse sugar beet genotypes as well as its effect on sugar beet root quality and yield. Investigations comprising 15 sugar beet genotypes (five multigerm lines, five hybrids and five monogerm lines) were carried out on two soil types (Calcic luvisol: L-1 and L-3 and Calcic gleysol: L-2 and L-4) during two growing seasons. Root yield of the investigated genotypes on Calcic luvisol (50 t/ha) was higher, than on Calcic gleysol (34 t/ha). In general, multigerm lines were known for the highest leaf potassium concentration (2.75%), lowest root one (3.78 mmol/100 g root), highest sugar content (13.8%) and best root extractable sugar (1.5%). Monogerm lines had the lowest leaf potassium concentration (2.51%), highest root one (4.24 mmol/100 g root), lowest sugar content (12.9%), and the poorest extractable sugar (10.7%). Root yield of the investigated hybrids (48 t/ha) was higher by 16% compared to multigerm lines yield (42 t/ha) and as much as 35% higher compared to monogerm lines (36 t/ha). Sugar beet root potassium was in significantly negative correlation with sugar content at three localities (L-1: r = –0.485**, L-2: r = –0.096, L-3: r = –0.687**, L-4: r = –0.337**) whereas at all four localities it was in negative correlation with extractable sugar (L-1: r = –0.634**, L-2: r = –0.407**, L-3: r = –0.930**, L-4: r = –0.749**). Potassium concentration in sugar beet leaf was in significant positive correlation with sugar content at three localities (L-1: r = 0.382**, L-2: r = 0.231, L-3: r = 0.717**, L-4: r = 0.516**).


2006 ◽  
pp. 27-35 ◽  
Author(s):  
Stevan Radivojevic ◽  
Irena Dosenovic

Environmental factor (location) influenced sugar beet root yield, which was higher by 20.6% on Belgrade location than on Pancevo location. However, when compared the genotype effect, smaller environmental influence was found for root yield, which was not expected. The investigated factors (variety and location) equally contributed to the variation in root sugar content. Significantly higher varietal influence was observed for granulated sugar yield, which was also unexpected. .


2008 ◽  
Vol 53 (2) ◽  
pp. 83-90
Author(s):  
Goran Jacimovic ◽  
Branko Marinkovic ◽  
Jovan Crnobarac ◽  
Darinka Bogdanovic ◽  
Lazar Kovacev ◽  
...  

Researches, which have lasted for two years, were carried out on long-term trial field at Rimski Sancevi, Novi Sad, Serbia. In this trial, the eight fertilization variants of N, P2O5 and K2O increased amounts were studied. Sugar beet root and tops yields were determined, as well as the elements of technological sugar beet root quality. Based on these results, percentage of sugar utilization and refined sugar yield was defined. In the spring, before applying of N fertilizer, amount of nitrate nitrogen in the soil and its influence on yield and quality was determined. The highest root yield in 2002 was produced at the variant N100 P150 K150, and in 2003 at the variant N150 P150 K150. However, in both years, referring to the variant N100 P100 K100, the differences were not statistically significant. Increasing of nitrogen amounts had negative effects on refined sugar yield. Amounts of NO3-N in the soil in spring, before sugar beet sowing, in 2002 had significant influence on root yield and refined sugar yield. In the year 2003, which was highly dry, high correlation ratio were gained between amounts of NO3-N in the soil and root quality parameters, but it wasn't significant between nitrogen amounts and root and refined sugar yield.


1963 ◽  
Vol 95 (8) ◽  
pp. 863-873 ◽  
Author(s):  
A. M. Harper

AbstractIn southern Alberta the fundatrix of P. betae hatches from the overwintered egg in late April and early May and feeds on an emerging leaf of P. angustifolia or P. balsamifera, forming a gall. In the gall it produces alate fundatrigeniae, which migrate from the poplars to beets and produce apterous alienicolae. This form of the aphid reduces both yield and sugar content of beet roots. During the summer several generations of alienicolae are produced. In the fall most of the alienicolae produce sexuparae. These migrate from beets to poplars, where they produce males and oviparae. Each fertilized ovipara lays a single egg on the bark of a poplar tree. The species may overwinter as eggs on the poplars or as alienicolae in the soil. The egg has an obligatory diapause that is terminated by exposure to low temperature. The fungatrigeniae migrate from late June to mid-August and the sexuparae from early September to late October. The potential reproductive capacities of the fundatrix, fundatrigenia, sexupara, and ovipara averaged 163, 13, 6, and 1, respectively. Under greenhouse conditions 20 aphids (alienicolae) produced 9,000 in 6 weeks when the soil temperature was maintained at 27 °C. Below 15 °C. the rate of reproduction was low and death was caused by exposure to 30 °C. for 6 weeks. The most important predators of P. betae were the anthocorid A. antevolens, the flies S. bigelowi, L. pemphigae and T. glabra, and a coccinellid Scymnus sp.


2021 ◽  
Vol 6 (1) ◽  
pp. 11
Author(s):  
Mustafa Yasar ◽  
Remzi Ekinci

This study was carried out to investigate the ecological regions of Eskişehir, Konya, Kırşehir, and Çorum in terms of sugar beet root yield (kg da-1), polar sugar rate (%), refined sugar rate (%) and sugar yield (kg da-1), to determine stabilities of selected genotypes, and to assist future studies. The experiment was conducted in the ecological regions of Eskişehir, Konya, Kırşehir, and Çorum between 2013 and 2017, using the trial data from the Variety Registration and Seed Certification Center. 58 genotypes of foreign origin were used in the study. It was determined that the Çorum location could be considered as bad environment in terms of sugar beet root yield feature, the Çorum and Eskişehir locations in terms of polar sugar beet and refined sugar rate feature, and the Eskişehir location in terms of polar sugar rate feature. It was concluded that Sandrina, Bernache and Aigrette genotypes showed good adaptation under good environmental conditions and were stable in terms of sugar beet root yield; Garrot and Beetle genotypes in terms of sugar yield; Delano and Portofina KWS (5K618) genotypes in terms of polar sugar rate; Ametist (SV1634), Masai, and Eldorado genotypes in terms of refined sugar rate. Since the performances of genotypes in different environmental conditions differ, it is of great importance to examine the performances of new varieties in different ecological environments. In terms of sugar beet root yield characteristics, it is recommended to prefer warmer ecological locations


2014 ◽  
Vol 60 (No. 9) ◽  
pp. 413-417 ◽  
Author(s):  
A. Artyszak ◽  
D. Gozdowski ◽  
K. Kucińska

The effect of marine calcite (containing calcium and silicon mainly) foliar fertilization on the sugar beet root yield and technological quality relative to the control (treatment 0) was investigated. Study was conducted in 2011–2012 in the southeastern region of Poland, in Sahryń (50°41'N, 23°46'E). The cultivar of sugar beet was Danuśka KWS. Two treatments of foliar fertilization: (1) treatment (in the stage of 4–6 sugar leaves – 262.0 g Ca/ha, 79.9 g Si/ha, and three weeks later – 524.0 g Ca/ha, 159.8 g Si/ha); and (2) treatment (in the stage of 4–6 sugar leaves – 524.0 gCa/ha, 159.8 g Si/ha, three weeks later – 524.0 g Ca/ha, 159.8 g Si/ha). Calcium and silicon foliar fertilization resulted in increases of: (1) the root yield (average for both treatments about 13.1%; (2) the leaf yield (about 21.0%); (3) the biological sugar yield (about 15.5%), and (4) technological yield of sugar (about 17.7%) compared with the control treatment. At the same time a positive effect on the roots technological quality was found. It was a significant reduction of alpha-amino-nitrogen content and tended to reduce the content of potassium and sodium.


2021 ◽  
pp. 1-5
Author(s):  
Albert T. Adjesiwor ◽  
Joel Felix ◽  
Don W. Morishita

Abstract Field studies were conducted from 2005 to 2009 in Idaho and Oregon to 1) evaluate the competitive effect of volunteer potato on sugar beet yield (volunteer potato competition experiment), and 2) determine the optimum timing of volunteer potato removal from glyphosate-tolerant sugar beet fields using glyphosate (volunteer potato removal timing experiment). The volunteer potato competition experiment consisted of eight potato densities, including the untreated check: 0, 6,741, 10,092, 13,455, 16,818, 20,184, 26,910, and 40,365 tubers ha−1. The volunteer potato removal experiment consisted of 10 removal timings (including the untreated check) ranging from the 10-cm rosette stage to mid-tuber bulking. There was a linear decrease in sugar beet root and sucrose yield as volunteer potato density increased (P < 0.001) such that with every volunteer potato tuber per square meter, sugar beet root yield decreased by 15% and sucrose yield decreased by 14%. At the highest volunteer potato density (40,365 tubers ha−1), sugar beet root yield was 29,600 kg ha−1 (compared to 73,600 kg ha−1 for the untreated), representing a 60% reduction in sugar beet root yield. In the removal timing study, a one-time application of glyphosate at the 10-cm rosette, hooking, and tuber initiation stages provided 74% to 98% reduction in volunteer potato tuber biomass. Delaying volunteer potato removal beyond the tuber initiation stage reduced sugar beet root and sucrose yield (12% to 20%), resulting in an economic loss of $104 to $161 per hectare. The best potato removal timing that optimizes the trade-off between improved control and potential for sugar beet yield reductions is before or at the tuber initiation stage.


1964 ◽  
Vol 96 (3) ◽  
pp. 520-522 ◽  
Author(s):  
A. M. Harper

AbstractTwo leaf-spot- and spider-mite-resistant varieties of sugar beets, GW 674 and GW 359, exhibited resistance to the development of populations of the sugar-beet root aphid, P. betae. GW 674 is a selection of GW 359 but has higher sugar content and greater leaf-spot resistance. Nine other varieties were susceptible to root aphid infestations.


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