CONTROL OF ROOT DISEASE IN PEAS BY SEED TREATMENT IN SOUTHERN ALBERTA

1964 ◽  
Vol 44 (6) ◽  
pp. 531-537 ◽  
Author(s):  
F. R. Harper
Keyword(s):  
Pisum Sativum ◽  
Seed Treatment ◽  
Root Disease ◽  
Infested Soil ◽  
Fusarium Spp ◽  
Untreated Seed ◽  
Pisum Sativum L ◽  
Southern Alberta

The effectiveness of seven different fungicide treatments on peas (Pisum sativum L.) was determined on irrigated land in southern Alberta from 1961 to 1963. Emergence and yield were higher from treated than from untreated seed. Captan, Semesan, and Bayer 47531 were the most effective fungicides.The fungicides did not influence either the type or frequency of isolation of pathogens from roots at harvest. Fusarium spp. and Pythium spp. were the fungi most frequently isolated from diseased roots. Pythium was isolated from seeds germinated for 3 days at 15 °C in moist, naturally infested soil, but no pathogens were isolated from seeds treated with captan. Although emergence from untreated seed of six varieties of peas differed with location and variety, emergence from the seed treated with 65% captan was uniformly high. Captan protected both sound and damaged seed from attack by pathogens.

scholarly journals Reduction in the content of antinutritional substances in pea seeds (Pisum sativum L.) by different treatments

2011 ◽  
Vol 50 (No. 11) ◽  
pp. 519-527 ◽  
Author(s):  
R. Dvořák ◽  
A. Pechová ◽  
L. Pavlata ◽  
J. Filípek ◽  
J. Dostálová ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Seed Treatment ◽  
Production Traits ◽  
Pisum Sativum L ◽  
Heat Treated ◽  
Pea Seeds ◽  
Reactor Temperature ◽  
Pre Treatment ◽  
Pea Seed ◽  
Representative Samples

The goal of the trial was to reduce the content of antinutritional substances in pea (Pisum sativum L.) seeds in order to enhance its use in livestock nutrition. A variety of field pea (Pisum sativum L.) with a high content of antinutritional substances and favourable production traits (Gotik) was chosen. Native and heat-treated pea seeds were used to collect representative samples (n = 6) for analytical purposes. The technology (V-0 technology, Czech patent No. 285745) was further modified by adjusting the reactor temperature, the duration of exposure to that temperature, and the duration of ageing of the material treated in this way (V-I and V-II technologies). The methodology of treatment is based on exposing pea seeds to vapour, organic acids and selected oxides.The monitored parameters included antinutritional substances. As far as the antinutritional substances were concerned, the content of trypsin inhibitors in native pea seeds (P) was around 15.4 ± 0.5 TIU. After treatment with technologies V-0, V-I, and V-II its activity dropped by 83.8, 80.5 and 83.8%, respectively. The pre-treatment titre of lectins (P) was 717 ± 376. It dropped by 70.3, 35.7 and 73.2% after treatment with technologies V-0, V-I and V-II, respectively. The content of tannins measured by the amount of gallic acid in native pea seeds was 49.1 ± 2.7 mg per kg. It dropped by 41.4, 32.0 and 46.2% after the application of the above-mentioned technologies. The content of indigestible oligosaccharides causing flatulence was less affected by the treatments. The pre-treatment content of raffinose was 9.5 ± 0.5 g/kg. The drop associated with the treatment was 9.5, 6.3 and 10.5%, respectively. The pre-treatment content of stachyose was 21.4 ± 0.8 g/kg and after treatment with technologies V-0 and V-II it dropped by 7.0% and by 16.4%, respectively. The application of technology V-I did not result in a drop in the content of stachyose. The content of verbascose in native pea seeds was 16.1 g/kgand the treatment with technologies V-0; V-I and V-II resulted in a drop by 7.5, 5.6 and 20.5%, respectively. As for the detected phenolic acids, with the exception of caffeic acid, not a drop, but an increase in their content was recorded. Isoflavone oestrogens such as daidzein and genistein also recorded a small increase in their content. The results of the trial lead us to conclude that the above-described methods of pea seed treatment, especially the V-II variant, proved to be useful and can be recommended for practical use.  

Response of Pisum sativum L. to Gibberellic Acid Seed Treatment 1

1970 ◽  
Vol 62 (2) ◽  
pp. 291-293
Author(s):  
I. D. Teare ◽  
A. G. Law ◽  
V. E. Wilson
Keyword(s):  
Pisum Sativum ◽  
Gibberellic Acid ◽  
Seed Treatment ◽  
Pisum Sativum L

Productivity of processing peas as influenced by nitrogen fertilization, Rhizobium inoculation, and fungicide seed treatment

1991 ◽  
Vol 71 (4) ◽  
pp. 1271-1274 ◽  
Author(s):  
V. A. Fritz ◽  
C. J. Rosen
Keyword(s):  
Pisum Sativum ◽  
Seed Yield ◽  
Seed Treatment ◽  
Rhizobium Leguminosarum ◽  
Dry Weight ◽  
Fresh Weight ◽  
Rhizobium Inoculation ◽  
Pisum Sativum L ◽  
Rhizobial Inoculation ◽  
N Rates

A 3-yr field experiment determined the influence of nitrogen (N) rates (0, 23, 46 and 92 kg ha−1), rhizobial inoculation, and fungicide (captan and thiram) seed treatment on the productivity of processing peas (Pisum sativum L.). In 2 of the 3 yr, N rates up to 46 or 92 kg N ha−1 increased vine fresh weight, decreased nodulation and had no effect on seed yield. Seeds treated with fungicides or inoculated with Rhizobium leguminosarum biovar viceae had no effect on vine fresh weight or seed yield. Nodule dry weight was increased in 2 of 3 yr when seeds were inoculated with Rhizobium. Key words: Pisum sativum, nodulation, rhizobia, fungicides

scholarly journals An effect of doses of nitrogen and of “Rhizotorphin” on pea (Pisum sativum l.) productivity in the conditions of podzol heavy-loam soil

2019 ◽  
pp. 4-11
Author(s):  
Matvei Alekseevich Aleshin ◽  
Mariya Georgievna Subbotina
Keyword(s):  
Pisum Sativum ◽  
Seed Treatment ◽  
Close Correlation ◽  
Bacterial Preparation ◽  
Pisum Sativum L ◽  
Grain Productivity ◽  
Productivity Increase ◽  
Heavy Loam ◽  
Loam Soil ◽  
Minimal Prime

The results of field two-factor experiment in the conditions of soddy-podzol heavy-loam soil permitted to determine an effect of increasing doses of nitrogen (factor A) on agro-chemical indicators of soil and grain productivity of pea (Pisum sativum L.). Variety response of the experimental crop was studied during treatment of sowing material with a bacterial preparation of biofertilizer “Rhizotorphin” (factor B). According to the results of agro-chemical analyses a close correlation dependence (r = 0.70-0.99) between the studied nitrogen doses (N30-120) and the amount of its mineral forms (N-NO3 / N-NH4 / Nmin) in soil has been established. Due to the usage of bacterial preparation of biofertilizer “Rhizotorphin” for pea seed inoculation a productivity increase was 4.45 dt/ha-1 at LSD05 = 1.85 dt/ha-1. The responsiveness of pea plants on applying increasing doses of nitrogen was different that was connected both with biological peculiarities and the variety’s ones of the studied crop and with an application of the bacterial preparation for treatment of sowing material as well. The use of “start doses” of nitrogen provided a reliable productivity increase of Pisum sativum for 1.96-6,43 dt/ha-1 at LSD05 = 1.72 dt/ha-1. Higher nitrogen doses (60-75 kg/ha) conditioned pea productivity decrease for 6.77-6.88 dt/ha-1. Nitrogen dose of 90 kg/ha promoted emphatic increase of grain productivity up to 23.34-29.59 dt/ha-1. Further nitrogen doses increase result in reliable productivity decrease. Greater economic indicators had been obtained at seed treatment with bacterial preparation of biofertilizer “Rhizotorphin” and using nitrogen doses (N30-90) – profitability level varied in a range of 26.5…60.0 per cent, with maximum to indicator (60,0%) at using a “start dose” of 30 kg/ha. Minimal prime cost of a ton of pea grain of Agrointel variety was obtained at seed treatment with bacterial preparation and nitrogen application in a dose of 30 kg/ha and comprised 3.750 rouble.  

scholarly journals ​Effect of Seed Treatments and Storage Period on Seed Health Parameters of Pea (Pisum sativum L.) under Ambient Storage Conditions

2021 ◽  
Author(s):  
Ravindra Kumar ◽  
Anuja Gupta ◽  
Kumkum Verma ◽  
Arjun Singh
Keyword(s):  
Pisum Sativum ◽  
Seed Quality ◽  
Storage Period ◽  
Storage Conditions ◽  
Untreated Seed ◽  
Pisum Sativum L ◽  
Ambient Storage ◽  
Vigour Index ◽  
Percent Germination ◽  
Treated Seed

Background: Pea (Pisum sativum L.) is an important leguminous crop utilized as vegetable and pulse, being an important source of proteins. Pea seeds harbour various mycoflora both in field and during storage, which plays important role in reducing seed viability, germination and vigour inflicting considerable losses in yield and quality. There is scarcely any recommendation available to maintain seed quality during storage of pea seeds, hence present study was carried out. Methods: Seeds of pea (cvs. Azad P. 1 and Arkel) were treated with Captan and Carbendazim 50%WP fungicides @ 2.0 g/Kg seed and stored under ambient conditions. The samples were drawn at three months interval to assess the effect of storage on seed quality parameters. The vigour index I, per cent germination and speed of germination of these seed samples were determined using ISTA rules. The detection of associated mycoflora in pea (Pisum sativum L.) seed samples was carried out by standard blotter method as recommended by International Seed Testing Association. Result: Total fourteen fungal species were found associated with different pea seed samples. Out of these, maximum incidence of Alternaria alternata (21.36%) followed by Aspergillus flavus (15.53%), A. fumigatus (14.56%), A. niger (11.60%) and Rhizopus stolonifer (9.71%), were recorded on untreated seed of pea cv. Azad P. 1, after 18 months of storage. The germination, speed of germination and vigour index of stored seed reduced with increase in storage period, whereas fungal incidence increased with the increasing storage period. Among the tested cultivars, germination in pea (cv. Arkel) remained above IMSCS even after 18 months of storage under ambient storage conditions. The maximum percent germination (99.0) was found in pea cv. Azad P. 1 seeds treated with Captan at 3 months of storage, whereas minimum percent germination (49.5) was found in untreated seed of pea cv. Azad P. 1 after 18 months of storage. The maximum speed of germination (23.88) was found in Captan treated seed of pea cv. Arkel at 0 month of storage and minimum speed of germination (3.52) was found in untreated seed of pea cv. Azad P. 1 at 18 months of storage. The maximum vigour index I (2339) was found in pea cv. Azad P. 1 (Captan treated seed) at 3 months of storage and minimum vigour index I (431) was found in untreated seed of pea cv. Azad P. 1 after 18 months of storage.

Identification, laboratory, greenhouse and field handling of Aphanomyces euteiches on pea (Pisum sativum L.)

2021 ◽  
Author(s):  
Kimberly Anderson Zitnick ◽  
Lyndon Porter ◽  
Linda E Hanson ◽  
Julie Pasche
Keyword(s):  
Pisum Sativum ◽  
Root Rot ◽  
Lateral Roots ◽  
Infected Plant ◽  
Molecular Techniques ◽  
Economic Losses ◽  
Infested Soil ◽  
Aphanomyces Euteiches ◽  
Pisum Sativum L ◽  
Initial Symptoms

Aphanomyces euteiches is a destructive soilborne plant pathogen, causing economic losses when adequate to excess soil moisture is available. This oomycete organism survives in the soil for decades and infects and degrades roots of plants from 11 families. Symptoms of Aphanomyces root rot are similar across the major economic hosts alfalfa (Medicago sativa subsp. sativa L.), lentil (Lens culinaris Medik.), and pea (Pisum sativum L.). Initial symptoms include the appearance of grey, water-soaked root tissue. Roots develop a golden-brown color, and lateral roots begin to disintegrate as the disease worsens. In the most severe cases, the entire root system is destroyed and aboveground chlorosis and necrosis are observed. A. euteiches isolation can be successful from both infested soil and infected plant tissue. Macroscopically, colony growth is generally nondescript and white in color. A. euteiches is self-fertile (homothallic) and produces sexual oospores in culture in addition to asexual zoosporangia and zoospores (primary and secondary) on hyphae lacking regular septa (coenocytic). Numerous molecular techniques have been developed for successful A. euteiches detection. A. euteiches can be stored in frozen soil or on agar slants, but viability should be evaluated regularly. Oospores or zoospores have been utilized for inoculation under greenhouse and field conditions; although the generation of a field site using soil infestation techniques can take several seasons of productions of a susceptible crop to be utilized to effectively screen for Aphanomyces root rot.

QUANTITATIVE ANALYSIS OF GROWTH IN SOUTHERN ALBERTA OF TWO BARLEY CULTIVARS GROWN FROM MAGNETICALLY TREATED AND UNTREATED SEED

1980 ◽  
Vol 60 (2) ◽  
pp. 463-471 ◽  
Author(s):  
S. FREYMAN
Keyword(s):  
Grain Yield ◽  
Seed Treatment ◽  
Dry Weight ◽  
Controlled Environment ◽  
Untreated Seed ◽  
Crop Growth Rate ◽  
Barley Cultivars ◽  
Kernel Weights ◽  
Southern Alberta ◽  
Net Assimilation

Growth of two barley cultivars (Gait and Betzes) grown from magnetically treated and untreated seed was analyzed quantitatively both to determine their response to the environment of southern Alberta and to identify which phases, if any, are stimulated by magnetic treatment. Plants grown under controlled environment conditions, on irrigated land, and on dryland were sampled at about weekly intervals to determine leaf area and dry weight for growth analyses. Tiller numbers, grain yield, and kernel weights were also measured. The two cultivars differed significantly in the number of tillers and heads per plant, in the net assimilation rate (NAR), crop growth rate (CGR) in the later stages of growth, and in grain yield. The only apparent effect of magnetic seed treatment was a small stimulation of NAR, under controlled environment conditions, between 29 and 57 days after planting. No response to magnetic seed treatment could be detected under field conditions.

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