scholarly journals Changes in the Dry Matter and Sugar Content of Nantes Type Carrots during Storage

2002 ◽  
Vol 8 (2) ◽  
Author(s):  
H. Némethy ◽  
M. Fehér

Changes in the dry matter and sugar content occurring during the winter storage of Nantes type carrot hybrids grown on soils of different quality were studied in 199912000 and 200012001. The dry matter content of the varieties tested depended on the production site and on the weather conditions prevailing in the growing season. The increase in the dry matter content during winter storage reached 6 to 7 per cent in the crop grown in a dry year and 1.5 to 2 per cent in a rainy year. The sugar content was lower in the rainy year (1999) and on brown sand (Szatymaz) than in the rather dry year (2000) and on chernozem soil with residual forest (Tordas), respectively. The increase in sugar content (1 to 5 per cent) measured at the end of storage was related to the season's weather conditions.

Author(s):  
V.K. Serderov ◽  
T.G. Khanbabaev ◽  
D.V. Serderovа

Наряду с правильной организацией базой хранения, для эффективного использования картофеля большое значение имеет его переработка. Содержание сухого вещества один из показателей качества пригодности сортов картофеля для его переработки. В статье обобщены результаты оценки урожайности сортов картофеля в климатических условиях высокогорья Республики Дагестан и содержания в клубнях сухого вещества как критерия пригодности сортов для переработки на картофелепродукты. Исследования проводили в опорном пункте Курахский , МО Курахский район Республики Дагестан, расположенном на высоте 2000 2200 м над уровнем моря в 2017 и 2018 годах. Контроль районированный в республике среднеранний сорт Волжанин. Схема посадки 70 30 см, повторность четырехкратная. Почвенный покров представлен горными каштановыми среднесуглинистыми почвами. Содержание гумуса 2,91-3,01. Питательными веществами почвы обеспечены в средней степени: гидролизуемого азота 2,2-3,5 мг, подвижного фосфора 4-6 мг и обменного калия 12,5-16,5 мг на 100 г. Погодные условия вегетационных периодов были благоприятные для возделывания картофеля. Средняя температура воздуха во время посадки (май) составила 11-12 С, а во время вегетации летние месяцы 14-16 С. Опытные участки расположены опыты в засушливой зоне, так как выпадающие осадки во время вегетации (в среднем 60-80 мм в месяц) недостаточны для роста и развития картофеля. За время вегетации были проведены пять поливов по бороздам из расчета 50 л на м2 (500 м3/га). По урожайности (31,438,7 т/га) в сравнении с контролем выделились сорта: Импала, Ирбитский, Жуковский ранний, Манифест, Матушка, Невский, Примобелла, Розара, Сильвана, Спиридон и Удача. По содержанию сухого вещества (25,829,1) в сравнении с контролем выделились сорта: Алена, Нарт, Гиоконда, Матушка, Росси, Вектор, Примобелла, Импало и Дезире.Along with the correct organization of storage base, for the effective use of potatoes, its processing is of great importance. The dry matter content is one of the indicators of the quality of potato cultivars suitability for processing. The article summarizes the results of assessment of the yield of potato cultivars in the climatic conditions of the highlands of the Republic of Dagestan and the content of dry matter in tubers as a criterion for the suitability of cultivars for processing into potato products. The research was carried out in the reference point Kurakhsky, MO Kurakhsky district of the Republic of Dagestan, located at an altitude of 2000-2200 m above sea level in 2017 and 2018. Control-zoned in the Republic of mid-early cultivar Volzhanin. Planting scheme is 70 30 cm, repeat-four times. The soil is mountain brown medium loamy. Humus content is 2.91-3.01. Soil nutrients are provided to an average extent: hydrolyzed nitrogen 2.2-3.5 mg, mobile phosphorus 4-6 mg and exchange potassium 12.5-16.5 mg per 100 g. The weather conditions of the growing season were favourable for potato growing. The average air temperature during planting (May) was 11-12 C, and during the growing season the summer months was 14-16 C. Experimental plots are located in the arid zone, as precipitation during the growing season (on average 60-80 mm per month) is not sufficient for the growth and development of potatoes. During the growing season, five furrow irrigation was carried out at the rate of 50 l per m2 (500 m3/ha). In terms of yield (31.438.7 t/ha) in comparison with the control, the following cultivars were distinguished: Impala, Irbitsky, Zhukovsky ranniy, Manifest, Matushka, Nevsky, Primobella, Rosara, Silvana, Spiridon and Udacha. According to the dry matter content (25.829.1) in comparison with the control, the following cultivars were distinguished: Alena, Nart, Gioconda, Matushka, Rossi, Vector, Primobella, Impala and Desire.


2009 ◽  
Vol 57 (2) ◽  
pp. 119-125
Author(s):  
G. Hadi

The dry matter and moisture contents of the aboveground vegetative organs and kernels of four maize hybrids were studied in Martonvásár at five harvest dates, with four replications per hybrid. The dry matter yield per hectare of the kernels and other plant organs were investigated in order to obtain data on the optimum date of harvest for the purposes of biogas and silage production.It was found that the dry mass of the aboveground vegetative organs, both individually and in total, did not increase after silking. During the last third of the ripening period, however, a significant reduction in the dry matter content was sometimes observed as a function of the length of the vegetation period. The data suggest that, with the exception of extreme weather conditions or an extremely long vegetation period, the maximum dry matter yield could be expected to range from 22–42%, depending on the vegetation period of the variety. The harvest date should be chosen to give a kernel moisture content of above 35% for biogas production and below 35% for silage production. In this phenophase most varieties mature when the stalks are still green, so it is unlikely that transport costs can be reduced by waiting for the vegetative mass to dry.


Agronomy ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1916
Author(s):  
Iwona Ledwożyw-Smoleń ◽  
Sylwester Smoleń ◽  
Stanisław Rożek ◽  
Włodzimierz Sady ◽  
Piotr Strzetelski

Despite wide prevention programmes, iodine deficiency remains a substantial problem in various populations around the world. Consumption of crop plants with increased iodine content may help supply additional amounts of that element in a daily diet. The aim of the work was to evaluate the efficiency of iodine biofortification of potato tubers. Soil application of KI and foliar application of KIO3 in doses up to 2.0 kg I ha−1 were tested in a three-year field experiment. Biomass, yield as well as dry matter, iodine, starch, and soluble sugar content in potato tubers were analyzed. No negative effect of tested methods of iodine application on potato yield or dry matter content was observed. Both soil and foliar application of iodine allowed to obtain potato tubers with increased content of that element with no decrease of starch or sugar content. The highest efficiency of iodine biofortification was noted for foliar spraying with KIO3 in a dose of 2.0 kg I ha−1. The obtained level of iodine in 100 g of potatoes could be sufficient to cover up to 25% of Recommended Daily Allowance for that element. The findings of the study indicate that potatoes biofortified with iodine can become an additional source of I in a daily diet.


1980 ◽  
Vol 60 (1) ◽  
pp. 197-200 ◽  
Author(s):  
J. A. SHELFORD ◽  
E. B. CATHCART ◽  
R. T. FRANCE ◽  
J. L. DOBB

Samples of forages were collected throughout the growing season from two dehydrating plants at three different stages of processing: prior to drying, after drying and after pelleting. Samples were analyzed for dry matter, crude protein, fibre, nitrogen content of the acid detergent fibre and pepsin insoluble nitrogen. On the average the amount of heat damage present in the dehydrated samples was quite low (6.11 ADIN % N). There was significantly more heat damage in the samples from the Creston plant. The dry matter content of the material leaving the drier appears to be the main factor related to elevated heat damage.


2015 ◽  
Vol 4 (1) ◽  
pp. 303-309
Author(s):  
Elsie Hamadina

This study was conducted to determine the changes in dry matter (DM), free sugar (FS) and starch contents in the three yam (D. rotundata) tuber regions under two storage environmental conditions (natural light- yam barn, or and darkness). Three varieties of D. rotundata (alaako, Dodoro and Odo) were studied. The dry matter content of the Head region was the highest (28.6%), followed by the Middle (26.9%) and Tail (22.3%) regions. Change in dry matter content of the tuber is mainly due to rapid changes in the dry matter content of the Tail region over time. Storage environment significantly (P< 0.05) affected dry matter content of the three tuber regions at 8 and 16 weeks in storage (WIS). Head regions per variety were lower in dry matter when stored under Light than in the Dark at 8 WIS, while the reverse was the case for the Tail. This may relate to the release of endodormancy. By 16 WIS, when tubers stored under Light had well developed sprouts and those stored in the Dark only showed the first sign of sprouting, all Head regions had higher dry matter content under Light than in Dark storage. This may be due to the presence of sprouts. Storage environment did not significantly affect starch content at the various tuber regions. Head regions had higher percentage free sugar content under Light than Dark storage, and these effects were manifested between 8 and 16 WIS.


2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
Ines Makhlouf-Gafsi ◽  
Abir Mokni-Ghribi ◽  
Hamadi Attia ◽  
Christophe Blecker ◽  
Souhail Besbes

This work aimed to evaluate the nutritional quality of a typical natural drink from male and female Deglet Nour (DN) date palm (Phoenix dactyliferaL.) during the collection period. Dry matter, protein, amino acids, and sugar profiles were determined using AFNOR norm, Kjeldahl method, HPLC, and HPAEC-PAD, respectively. The male sap dry matter content was higher than that of the female. It decreased significantly through the tapping period. During the harvest, the male sap protein content decreased but increased significantly in the female sap. Finally, sugar fraction, for both male and female DN sap, was dominated by sucrose, glucose, fructose, and a small amount of myo-inositol. During the collection time, sugar content is affected by the sex especially for myo-inositol content that increased significantly in the female date sap, unlike that of the male one. This may be related to the fact that the male palm is more resistant to physiological stress, inducing myo-inositol formation during tapping.


Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 539
Author(s):  
Katarzyna Adamczewska-Sowińska ◽  
Józef Sowiński ◽  
Mirosław Anioł ◽  
Piotr Ochodzki ◽  
Roman Warzecha

In 2012–2014, at the Research and Didactic Station of the Department of Horticulture at Wroclaw University of Environmental and Life Sciences (51°19′06′′ N, 17°03′49′′ E), field studies were conducted to evaluate the responses of two sweet maize hybrids to sowing dates (early and optimum) and five methods of maize plant coverings—polyethylene film: perforated (PE), red (PER), green (PEG), polypropylene non-woven fabric (PP), and control (C), with non-irrigation systems. Total yield and morphological characteristics of cobs were compared. In 2012 soluble sugars and carotenoids content were measured. The use of maize cover at the beginning of growth (PE and PER) significantly influenced the number of rows, while PE and PEG increased the number of grains per cob. Covering maize sown at a later date, with polyethylene film and non-woven fabric, ensured better production effects than using such covers after earlier sowing. Signet F1 hybrid was charact0erized by significantly higher sugar content and Rustler F1 by higher lutein and zeaxanthin levels. The application of the optimum sowing date resulted in a significantly higher yield of cobs, by 11.3%, than after early sowing. The yield increase as a result of the applied covers was higher after sowing at a later date. The content of dry matter in grains was positively correlated with the content of sucrose, glucose, and fructose. The change in carotenoids content also depended on the accumulation of dry matter in the kernels. The study confirmed the correlation of sweet maize accumulated growing degree days (AGDD), and revealed dependence of grain quality on dry matter content in the grain.


2019 ◽  
Vol 180 (2) ◽  
pp. 51-59 ◽  
Author(s):  
O. V. Putina ◽  
A. G. Besedin

Background. Abiotic stressors, such as prolonged dry conditions, oversupply or lack of moisture, frost, etc., are spontaneous, and their impact causes significant damage to plants. This is also true for the common and leafless morphotypes of vegetable pea, which are most widely used in large-scale crop production.Objectives. Eleven cultivars with leaves of  the usual type (common morphotype) and 6 semi-leafless ones (leafless morphotype) were studied.Materials and methods. The experiments were performed on the breeding fields of Krymsk Experiment Breeding Station of VIR (Krasnodar Territory, 2015–2016). The plot area was 10 m2. There were 3 replications. Dry matter content was measured by drying the aerial parts of plants (axial organs, foliar apparatus [leaf, stipules], flowers, unripe beans, pod valves, grain) to constant dry matter at 105°C. Dry matter contents were compared using the t-test. Multifactorial analysis of variance (MANOVA, LSD test) was used to assess the yield of vegetable pea cultivars.Results. Vegetable pea plants are subject to the negative effect of abiotic stressors. With excessive moisture in the initial period of growth, there was a decrease in the accumulation of dry matter in plants. A similar effect is exerted by long absence of precipitation during the growth period of vegetable pea plants from the phase of 2–3 leaves to technical ripeness. The effect of weather conditions during cultivation on the yield of vegetable peas was estimated at 13.3%; and the interaction of the genotype٭environment factors, at 33.3%.Conclusion. No significant differences were observed between the groups of common leafy cultivars and semi-leafless ones in the content of dry matter in the aboveground biomass of plants and the yield. During the two years of research, the cultivars that exceeded the reference in yield were identified: ‘Prima’ (i-155213, Russia) and ‘Ambassador’ (k-9946, Germany), both belonging to the common morphotype.


2021 ◽  
Vol 937 (2) ◽  
pp. 022124
Author(s):  
A Regidin ◽  
S Ignatiev

Abstract Sainfoin – fodder crop capable of growing in unfavorable conditions and on soils with reduced fertility. But sainfoin is not widespread and does not occupy large cultivated areas. One of the reasons for this is the small number of sainfoin varieties adapted to various environmental conditions. The purpose of the research is to identify the sources of valuable economic and biological traits in the collection nursery of sainfoin for use as a source material. The sainfoin collection nursery was established in 2017 according to the methodology of N.I. Vavilov. The area of the plots is 1 m2, the replication is two times. Standard – sainfoin variety Zernogradskiy 2. According to the results, samples with useful traits were identified: samples Sin 149, Sin 151 and Sin 8.15 with early growth (28.03) had the shortest growing season (52 days); by plant height, specimens Sin 38 (122 cm) and Sin 208.15 (122 cm) were distinguished; the highest yield of green mass was noted for samples Sin 26, Sin 126, Sin 141, Sin 102.15, Sin 103.15, Sin 1.15, Sin 2.15 with indicators of 7.67-9.72 kg/m2; a dry matter content of over 28% was noted in samples Sin 37, Sin 46, Sin 42, Sin 105.15, Sin 205.15; samples Sin 31, Sin 42, Sin 54, Sin 122, Sin 135, Sin 144, Sin 145, Sin 160, Sin 100.15, Sin 1.15, Sin 3.15, Sin 4.15, Sin 6.15, Sin 8.15, Sin 100/1142 were distinguished by a high content crude protein (20.00-21.44%).


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