WINTER WHEAT SEED QUALITY DEPENDENCE ON DIFFERENT PRACTICES OF GRAIN STORAGE AND DURATION

2016 ◽  
Vol 3 (50) ◽  
pp. 127-131
Author(s):  
Marina E. Merchalova ◽  
◽  
Vladimir I. Orobinsky ◽  
Alexander P. Tarasenko ◽  
◽  
...  
Keyword(s):  
Winter Wheat ◽  
Seed Quality ◽  
Grain Storage ◽  
Wheat Seed

scholarly journals Weather Factors and Their Influence on the Adaptive Properties of Winter Wheat Varieties in the Western Forest-Steppe of Ukraine

2021 ◽  
Vol 24 (6) ◽  
pp. 34-40
Author(s):  
Maria Zapisotska ◽  
Olexandra Voloshchuk ◽  
Ihor Voloshchuk ◽  
Valentyna Hlyva
Keyword(s):  
Soil Moisture ◽  
Winter Wheat ◽  
Seed Quality ◽  
Phenotypic Variability ◽  
Yield Potential ◽  
Winter Period ◽  
Forest Steppe ◽  
Weather Factors ◽  
Field Germination ◽  
Soft Winter Wheat

The yield potential of winter wheat (Triticum aestivum L.) is formed in changing weather conditions and depends on the proposed agro-technological measures, to which the response of a particular variety is different. The purpose of this study was to determine the influence of weather factors on the field germination of soft winter wheat seeds, the growth and development of plants in the autumn and wintering in the zone of the Western Forest-Steppe of Ukraine, by sowing high-quality basic seed, careful soil preparation and the presence of optimum environmental factors. A sufficient level of productive soil moisture, which protects young shoots from possible deficiency after germination and is a long-term source of moisture at the next stages of organogenesis, has a great influence on obtaining friendly and timely shoots. Often overwintering conditions, when plants suffer from low negative temperatures at the beginning and at the end of the winter period, ground ice crust, resumption of vegetation in winter are the causes of freezing, loss, and ultimately a decrease in yield and seed quality. It has been confirmed that an increase in the temperature regime in 244-247°C in the autumn-winter period and the optimal amount of precipitation contribute to sufficient (31.6-34.6 mm) productive soil moisture (0-20 cm), which positively influences the process of germination of soft winter wheat, provides a high percentage of field germination of seeds of varieties (93.8-94.5%), lengthens the autumn development of plants by 3-12 days, which causes 3.5-5.7% higher accumulation of sugar content in the tillering nodes and a high percentage of overwintering (up to 95.5-96.4%). Varieties of the forest-steppe ecological type of soft winter wheat have insignificant phenotypic variability of adaptive traits, therefore, in the production of grain and seed products, it is recommended to give preference to the plant varieties listed in the Register, suitable for distribution in Ukraine for the Forest-Steppe zone, Polissya. The recommendations set out in this scientific work will help agricultural producers of the studied soil and climatic zone to carry out an effective, more ecologically plastic, highly productive variety replacement

he effect of winter wheat seed treatment the growth regulator of Metallocene brands: Melafen-Na, Melafen-Na+B, Melafen-Na+Mo on production processes, productivity and grain quality

2021 ◽  
Author(s):  
Ya.K. Tosunov ◽  
Keyword(s):  
Winter Wheat ◽  
Water Content ◽  
Growth Regulator ◽  
Seed Treatment ◽  
Grain Quality ◽  
Grain Weight ◽  
Wheat Seed ◽  
Production Processes

The results of studies on the testing of three brands of Metallocene showed that Melafen-Na+Mo was the most effective, the treatment of seeds with it provided a higher productive stem, the formation of larger in size, water content and grain weight, ears, increased yield and grain quality.

scholarly journals Impacts of wheat seed storage at poor household level in Bangladesh

2018 ◽  
Vol 43 (2) ◽  
pp. 345-360
Author(s):  
MA Monayem Miah ◽  
QMS Islam ◽  
ME Baksh ◽  
FJ Rossi ◽  
TP Tiwari
Keyword(s):  
Seed Quality ◽  
Seed Storage ◽  
Net Income ◽  
Wheat Seed ◽  
Financial Benefit ◽  
Household Level ◽  
Level Of Satisfaction ◽  
Wheat Cultivation ◽  
Plastic Metal ◽  
New Varieties

Small and marginal farmers have little access to improved seed from institutional sources and are thus largely excluded from the benefits of new varieties. The production and storage of improved varieties seeds at the household (HH) level can successfully overcome this problem. With this aim CSISA-CIMMYT (Cereal Systems Initiative for South Asia) project in Bangladesh have been working since 2012. Therefore, the study assessed the impacts of wheat seed storage systems at HH level, with a particular emphasis on how the poor farmers are benefited by doing the seed storage business. The study analyzed data and information collected at random from 210 supported and 60 non-supported farmers spread over three wheat growing districts namely Mymensingh, Faridpur and Rangpur. Wheat farmers used different storage containers and showed the highest level of satisfaction towards plastic sac along with poly bags and plastic/metal drum due to cost effectiveness and seed quality maintenance. On an average, supported and non-supported farmers retained respectively 103 kg and 100 kg of seed at household level, and sold most of their seeds to neighbouring farmers, local markets, and dealers. Wheat seed storage at household level was a profitable business to most of the respondent farmers. They could earn a reasonable net income (Tk.1127-Tk.1210) from seed storage. The farmers who stored seed in plastic/metal drum received the highest net income due to higher storage capacity, less storage cost, and higher seed price. The wheat storage program has created significant impacts in the study areas. A substantial increase was recorded in wheat area, wheat productivity, and financial benefit of the wheat farmers as a whole. Nevertheless, improved wheat seed is now available at farm level and most farmers become enthusiastic towards improved wheat cultivation because of this program. Respondent farmers did not face any critical problem during seed storage.Bangladesh J. Agril. Res. 43(2): 345-360, June 2018

Vernalization responses of field grown jointed goatgrass (Aegilops cylindrica), winter wheat, and spring wheat

Weed Science ◽  
2006 ◽  
Vol 54 (4) ◽  
pp. 695-704 ◽  
Author(s):  
Lynn Fandrich ◽  
Carol A. Mallory-Smith
Keyword(s):  
Winter Wheat ◽  
Spring Wheat ◽  
Seed Quality ◽  
Field Studies ◽  
Planting Dates ◽  
Aegilops Cylindrica ◽  
Growing Seasons ◽  
Jointed Goatgrass ◽  
Spring Temperatures ◽  
Developmental Responses

Numerous studies have quantified the developmental responses of wheat to vernalization, but its response compared to a weedy relative, jointed goatgrass, remains relatively unknown. Six paired jointed goatgrass collections gathered from Washington and Oregon fields, and winter and spring wheat, were grown in field studies to quantify yield and germination in response to vernalization. Monthly planting dates initiated in October and concluded in March were used to vary the vernalization durations for plants sown at three Oregon locations (Corvallis, Moro, and Pendleton) over two growing seasons. Minimum vernalization requirements to produce reproductive spikes were similar among plants of six jointed goatgrass collections. Jointed goatgrass collections grown at Corvallis required a minimum of 89 and 78 vernalization days (January 17, 2003 and January 22, 2004 sowing, respectively) to produce reproductive spikes, and plants grown at Moro required 60 vernalization days (March 3 and February 23) in both years, and 48 and 44 vernalization days (March 3 and February 24) were required by plants to produce spikes at Pendleton. Jointed goatgrass spikelet and winter wheat seed yield were positively influenced by vernalization days, experiment location, and year. The strength of the interactions among these main effects differed among jointed goatgrass collections and winter wheat. The effects of vernalization on jointed goatgrass yields and seed quality were more pronounced at Pendleton, OR, a location where jointed goatgrass has adapted, compared to Corvallis, OR, where it has not adapted. The minimum vernalization days required to produce germinable seed differed among jointed goatgrass collections, winter and spring wheat. There was not a selection of spring-adapted jointed goatgrass populations in the populations tested. Yet if spring temperatures are cool, minimum conditions for vernalization may be satisfied, and the benefits of planting spring crops to control jointed goatgrass would be reduced.

scholarly journals Development of ability to germinate and of longevity in air-dry storage in wheat seed crops subjected to rain shelter or simulated supplementary rainfall

2016 ◽  
Vol 26 (4) ◽  
pp. 332-341 ◽  
Author(s):  
Gajender Yadav ◽  
Richard H. Ellis
Keyword(s):  
Field Experiments ◽  
Seed Quality ◽  
Wheat Variety ◽  
Major Effect ◽  
Wheat Seed ◽  
In Planta ◽  
Hermetic Storage ◽  
Stage Of Development ◽  
Seed Crops ◽  
Harvest Maturity

AbstractClimate change will alter rainfall patterns. The effect of rainfall during seed development and maturation on wheat (Triticum aestivum L.) seed quality (ability to germinate normally; air-dry longevity in hermetic storage at 40°C with c. 15% moisture content) was investigated in field experiments (2011, 2012) by providing rain shelter or simulating additional rainfall. High ability to germinate was detected from mid seed filling until after harvest maturity. Subsequent longevity was more sensitive to stage of development. It increased progressively, reaching maximum values during maturation drying at 53–56 days after anthesis (DAA), 5–11 (2011) or 8–14 (2012) days beyond mass maturity; maximal values were maintained thereafter in 2011; longevity declined with further delay to harvest in 2012. Post-anthesis protection from rain had no major effect: in later harvests longevity was slightly greater than the control in each year, but in 2011 wetting treatments were also superior to the control. Wetting ears at all stages of development reduced longevity immediately, but considerable recovery in subsequent longevity occurred when seeds re-dried in planta for several days. The greatest damage to longevity from ear wetting occurred with treatments at about 56 DAA, with poorest recovery at 70 DAA (i.e. around harvest maturity) in absolute terms but at 56–70 DAA relative to gross damage. Hence, seed quality in a strongly dormant wheat variety was resilient to rain. Net damage was greatest from rain late in maturation. The phase of seed quality improvement in planta was dynamic with deterioration also occurring then, but with net improvement overall.

scholarly journals PCR-Based Detection of Cephalosporium gramineum in Winter Wheat

Plant Disease ◽  
2012 ◽  
Vol 96 (3) ◽  
pp. 437-442 ◽  
Author(s):  
K. L. E. Klos ◽  
L. M. Vásquez-Siller ◽  
H. C. Wetzel ◽  
T. D. Murray
Keyword(s):  
Winter Wheat ◽  
Internal Transcribed Spacer ◽  
Seed Infection ◽  
Wheat Seed ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Internal Transcribed Spacer Region ◽  
Polymerase Chain ◽  
Cephalosporium Gramineum ◽  
Field Plots

A polymerase chain reaction (PCR) assay was developed amplifying a 496-bp fragment of the internal transcribed spacer region of Cephalosporium gramineum genomic DNA at concentrations of 100 fg/μl. Winter wheat seed and seedlings were collected from field plots where C. gramineum was present. Seed was tested by PCR using 20-seed samples bulked for DNA extraction. Estimates of seed infection, based on isolation of the pathogen on semiselective medium and PCR, were comparable at 0.18 and 0.13% of winter wheat ‘Stephens’ (P = 0.6042), and 0.45 and 0.58% of experimental line WA7970 (P = 0.5636), respectively. PCR differentiated between plants with well-developed symptoms of Cephalosporium stripe and noninoculated plants. Positive PCR was obtained from 22% of asymptomatic leaf blades from inoculated plants. We found no false positives when PCR and C. gramineum isolation on a semiselective medium were performed using tissue from the same leaf. The PCR assay has potential to diagnose Cephalosporium stripe disease prior to the appearance of symptoms. Negative PCR for some samples from which C. gramineum was isolated suggests that C. gramineum may be present below the level of detection in some asymptomatic leaves. This PCR assay may be useful for investigations into C. gramineum infection of wheat.

scholarly journals Effects of essential oils on mycoflora and winter wheat seed germination

2021 ◽  
Vol 11 (2) ◽  
pp. 16-22
Author(s):  
T.O. Rozhkova ◽  
S.V. Stankevych ◽  
A.V. Matsyura
Keyword(s):  
Seed Germination ◽  
Winter Wheat ◽  
Essential Oils ◽  
Seed Treatment ◽  
Complex Analysis ◽  
Negative Impact ◽  
Bipolaris Sorokiniana ◽  
Forest Steppe ◽  
Wheat Seed ◽  
The Impact

The mycoflora of winter wheat seed consists of various fungi that differ as to the parasitism rate. Their harmfulness is connected with their phytotoxic action and ability to produce mycotoxins. Assuming that essential oils have an effective antifungal impact, we studied the effectiveness of 13 essential oils which were produced by LLC "Aromatyka", Ukraine (cinnamon, orange, peppermint, rosemary, vervain, ylang-ylang, sandal, fennel, lavender, eucalypt, bergamot, frankincense, and geranium) on securing of a group of fungi from winter wheat seeds. The seed mycoflora of Bogdana variety harvested in 2017-2020, which was grown in the North- Eastern Forest-Steppe zone of Ukraine (Sumy oblast), was analyzed. A fungi complex analysis was made on the media PGA. The impact of essential oils on seed germinating ability and the length of wheat sprouts on the 7th day has been determined. A longterm studying of seed treatment by essential oils showed their effects on mycoflora formation. These plants affected not only the fungi amount but also changed their secure spectrum. The studies admit a negative impact of fungi on seed germination and plant development. The highest seed germination equaled 95% under its treatment with rosemary and orange oils. However, under seed treatment with rosemary oil, there appeared Fusarium sp. and Bipolaris sorokiniana (Sacc.) Shoem., which harms seed germination. Orange oil has increased the number of fungi of Penicillium sp. The best results (based on three indices) had sandal oil, under which the fungus colony has increased half, and seed germination equaled 61%, the sprout length was maximal when applying other oils (58.8 mm). The essential oils which fully inhibited seed and fungi development (cinnamon, fennel, vervain, geranium) were determined. The study of two of them as fungicides for treatments at the beginning of wheat flowering proved a similar effect to falcon on the change of the internal seed mycoflora.

The influence of protectants combined with growth stimulator and microfertilizer on seed quality and yield of winter wheat

2019 ◽  
Vol 9 (0) ◽  
pp. 63-67
Author(s):  
A. A. Siroshtan ◽  
O. A. Zaima ◽  
V. P. Kavunets ◽  
D. Yu. Dubovyk ◽  
V. I. Zabolotnii ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Seed Quality ◽  
Growth Stimulator

scholarly journals Seed Transmission of Cephalosporium gramineum in Winter Wheat

Plant Disease ◽  
2006 ◽  
Vol 90 (6) ◽  
pp. 803-806 ◽  
Author(s):  
Timothy D. Murray
Keyword(s):  
Winter Wheat ◽  
Field Experiment ◽  
Seed Transmission ◽  
Selective Medium ◽  
Controlled Environment ◽  
Wheat Seed ◽  
Surface Disinfection ◽  
Infected Seed ◽  
Cephalosporium Gramineum ◽  
Field Plots

Although isolation of Cephalosporium gramineum from wheat (Triticum aestivum) seed has been reported, development of Cephalosporium stripe in plants from infected seed has not been demonstrated experimentally. Winter wheat seed was collected from three experimental field plots where Cephalosporium stripe was present, and C. gramineum was isolated from the seed following surface-disinfection and incubation on a semi-selective medium. C. gramineum was isolated from 0.10 to 0.88% of seed from 11 of 12 cultivars in a field experiment at Pullman, WA, and from 0.10 to 0.30% of seed from 3 of 4 genotypes in a field experiment at Fort Hall, ID; differences among cultivars were not significant in either experiment. C. gramineum was isolated from 0.35 and 0.55% of cv. Stephens plants with no symptoms and severe symptoms, respectively, from a uniform seeding in Pullman. Seed of the four genotypes from Fort Hall and Stephens from Pullman were grown under controlled environment in a soilless potting mix with no added inoculum and in which C. gramineum was not detected. Symptoms of Cephalosporium stripe developed in 0.08 and 0.17% of Stephens and breeding line 87-00314A plants, respectively, from Fort Hall, and from 0.18 and 0.55% of Stephens plants with no symptoms and severe symptoms, respectively. Although development of Cephalosporium stripe in plants grown from seed lots harvested from diseased plants was low, infected seed can provide an important source of inoculum for introducing the pathogen and initiating epidemics in areas where the pathogen did not occur previously.

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