<i>Virus-Infected Plant Detection in Potato Seed Production Field by UAV Imagery</i>

2018 ◽  
Author(s):  
Ryo Sugiura ◽  
Shogo Tsuda ◽  
Hiroyuki Tsuji ◽  
Noriyuki Murakami
Keyword(s):  
Seed Production ◽  
Infected Plant ◽  
Potato Seed ◽  
Virus Infected Plant

Freeze-fracture, freeze-etch complementary pairs of virus-infected cells reveal value of etching even when relatively high concentrations of cryoprotectants are used

1978 ◽  
Vol 36 (2) ◽  
pp. 136-137
Author(s):  
Russell L. Steere ◽  
Eric F. Erbe
Keyword(s):  
Plant Tissue ◽  
Phosphate Buffer ◽  
Infected Plant ◽  
Freeze Fracture ◽  
Distilled Water ◽  
Virus Infected Plant ◽  
Infected Cells ◽  
High Concentrations

It has been assumed by many involved in freeze-etch or freeze-fracture studies that it would be useless to etch specimens which were cryoprotected by more than 15% glycerol. We presumed that the amount of cryoprotective material exposed at the surface would serve as a contaminating layer and prevent the visualization of fine details. Recent unexpected freeze-etch results indicated that it would be useful to compare complementary replicas in which one-half of the frozen-fractured specimen would be shadowed and replicated immediately after fracturing whereas the complement would be etched at -98°C for 1 to 10 minutes before being shadowed and replicated.Standard complementary replica holders (Steere, 1973) with hinges removed were used for this study. Specimens consisting of unfixed virus-infected plant tissue infiltrated with 0.05 M phosphate buffer or distilled water were used without cryoprotectant. Some were permitted to settle through gradients to the desired concentrations of different cryoprotectants.

Ground control and state of elite potato seed breeding in the Central region of Russia and adjacent regions according to its data

2020 ◽  
Author(s):  
S.E. Mikhalin S.E. ◽  
Keyword(s):  
Seed Production ◽  
Central Region ◽  
The State ◽  
Ground Control ◽  
Potato Seed ◽  
Potato Diseases

The article sets out information on the conduct of soil control of the potato elite, provides information on the state of elite seed production of potatoes in the Central region of Russia according to the data of soil control - which regions participated in its implementation, how many samples and varieties of potatoes were provided for soil control in different years, what were the main varieties, which potato diseases were taken into account.

Varietal Identity and Varietal Purity. Viral and Viroid Pathogens Controlled in Potato Seed Production

2021 ◽  
pp. 87-93
Author(s):  
Evgeny Alekseevich Simakov ◽  
Elena Vasil’evna Oves ◽  
Sergey Nikolaevich Zebrin ◽  
Boris Vasil’evich Anisimov
Keyword(s):  
Seed Production ◽  
Potato Seed ◽  
Varietal Purity

A Set of Basic Agronomical and Protective Techniques Used in Potato Seed Production

2021 ◽  
pp. 71-83
Author(s):  
Boris Vasil’evich Anisimov ◽  
Sergey Valentinovich Zhevora
Keyword(s):  
Seed Production ◽  
Potato Seed

Simulated Glyphosate Drift to Potato Mother Plants and Effect on Daughter Tubers Used for Seed Production

2014 ◽  
Vol 28 (1) ◽  
pp. 253-258 ◽  
Author(s):  
Harlene M. Hatterman-Valenti
Keyword(s):  
Seed Production ◽  
Total Yield ◽  
Field Trials ◽  
Russet Burbank ◽  
Potato Cultivars ◽  
Potato Seed ◽  
Sprout Inhibition ◽  
Tuber Bulking ◽  
Mother Plants ◽  
Glyphosate Drift

Field trials were conducted to evaluate the effect of simulated glyphosate drift rates applied to two non-irrigated potato cultivars in the late tuber bulking stage grown for potato seed production. Mother plants receiving a sublethal glyphosate application had similar yields regardless of the year or cultivar. ‘Red LaSoda' seed pieces visually evaluated the following spring had more sprout inhibition from glyphosate-treated plots. With ‘Russet Burbank', only seed pieces from mother plants that received more than 18 g ha−1 glyphosate showed sprout inhibition. Total yield reductions the year following glyphosate treatments were attributed to fewer and smaller tubers from plants that did not emerge or were delayed in emergence. Red LaSoda seed pieces from mother plants receiving ≥ 71 g ha−1 glyphosate yielded less than the nontreated. In 2005, Russet Burbank seed pieces from mother plants receiving ≥35 g ha−1 glyphosate had reduced yields, whereas in 2006, all glyphosate treatments reduced total yield compared with the nontreated.

scholarly journals Hybrid true seed production from potato mother plant as influenced by nitrogen splitting and boron

2020 ◽  
Vol 93 (1) ◽  
Author(s):  
Rajesh Chakraborty ◽  
Shahidul Islam ◽  
Tuhin Suvra Roy
Keyword(s):  
Seed Production ◽  
Maximum Yield ◽  
Potato Seed ◽  
True Potato Seed ◽  
Split Application ◽  
Maximum Weight ◽  
Factor B ◽  
True Seed ◽  
Two Factors ◽  
Plot Design

Experiments were conducted to show the effect of split application of nitrogen (SN) and boron (B) on hybrid True Potato Seed (TPS) production. The TPS-67 (♂) and MF-II (♀) were used as crossing materials. The experiments comprised two factors i.e., factor-A; nitrogen splitting (4 levels): 2 split (SN0-Conventional), 3 split (SN1), 4 split (SN2) and 5 split (SN3) where 50 kg N ha–1 applied as basal from total 300 kg N ha–1 with each split application and the rest 250 kg N ha–1 was splitted as per treatment at 10 days intervals started from 30 DAP (days after planting); and factor- B; boron (4 levels): 0 (B0), 4 (B1), 6 (B2) and 8 (B3) kg B ha–1 under split-plot design with three replications. We found that SN and/or B influenced the hybrid TPS production. The maximum yield (2160.1 mg) of TPS plant–1 was found from SN1B3 and the minimum (1001.8 mg) was in SN0B0. The maximum yield (172.81 kg) of TPS ha–1 was found from SN1B3 and the minimum (80.14 kg) was in SN0B0. The maximum weight (86.87 mg) of 100-TPS was found from SN3B3; whereas, the minimum (53.36 mg) was in SN0B0.

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