scholarly journals 388 EFFECTS OF DEHAULMING ON CANOPY GROWTH AND TUBER YIELD OF `YUKON GOLD'

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 486f-486
Author(s):  
James A. Okeyo ◽  
Ronald D. Morse
Keyword(s):  
Apical Dominance ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Ground Level ◽  
Potato Plants ◽  
Seed Tubers ◽  
Tuber Bulking ◽  
Field Emergence ◽  
Cut Seed ◽  
Bulking Rate

Seed tubers of `Yukon Gold' (Solanum tuberosum L.) exhibit strong apical dominance, resulting in relatively poor stem emergence. Cutting seed tubers to overcome apical dominance in `Yukon Gold' results in irregular, uneven stem emergence. In 1992 and 1993, experiments were conducted to evaluate the effects of dehaulming (excising stems to ground level after field emergence) whole, cross- and longitudinal-cut seed tubers of `Yukon Gold' on canopy growth and tuber yield. For all seed piece types, dehaulming during the first week of field emergence produced uniform plant stands and increased yields of U.S. no. 1 tubers by 16 and 42% and large tubers (> 6.4 cm dia.) by 340 and 64% in 1992 and 1993, respectively. Our data indicate that tuber bulking rate was increased by dehaulming. The possible causes and implications of increased tuber bulking rates in dehaulmed potato plants are discussed.

scholarly journals Effects of Irrigation Management on Chipping Potato (Solanum tuberosum L.) Production in the Upper Midwest of the U.S.

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 768
Author(s):  
Trevor W. Crosby ◽  
Yi Wang
Keyword(s):  
Solanum Tuberosum ◽  
Deficit Irrigation ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Potato Production ◽  
Tuber Maturation ◽  
Tuber Bulking ◽  
Yield Quality ◽  
Chipping Potato ◽  
The U.S

Irrigation is required for profitable commercial potato (Solanum tuberosum L.) production. Excessive or deficit soil water availability during the growing season can have adverse effects on tuber yield, quality, and storability. A field study was conducted during the 2018 and 2019 field and storage seasons in Central Wisconsin, a region in the U.S. with a high volume of potato production, to evaluate the impacts of different irrigation rates on three chipping potato varieties, Hodag, Lamoka, and Snowden. The treatments were implemented during the late-tuber bulking and tuber maturation growth stages, and consisted of irrigation at 125%, 100%, 75%, and 50% of crop evapotranspiration (ET). Irrigation before the treatment period was at 100%ET for all plots. With the industry standard irrigation practice being at 100%ET, other treatments were designated as over-irrigation or deficit irrigation. The impact of these watering rates on tuber yield and quality was evaluated at harvest, and tuber storage quality was assessed by measuring chip fry color and sugar concentrations at 0, 4, and 8 months of storage. It was found that compared to the standard practice, the over-irrigation treatment at 125%ET when tubers reached late bulking resulted in no significant increase in total yield, marketable yield, tuber quality at harvest and during storage, as well as reduced irrigation efficiency (IE) and water-use efficiency (WUE). This treatment also increased nitrate leaching potential in both years. In comparison, deficit irrigation at 75%ET or even 50%ET during the late season had no impact on tuber growth, could increase IE and WUE in one of the two years, and showed reduced drainage. In both years, irrigation rate had no significant effects on hollow heart incidence, tuber specific gravity at harvest, and fry quality during the 8-month storage period. This study suggested that over-irrigation was not beneficial for potato production in Central Wisconsin of the U.S., and deficit irrigation during late tuber bulking and tuber maturation stages could potentially result in more sustainable water use while not penalizing tuber yield, quality and storability of chipping potatoes.

scholarly journals Performance of seed potato produced from sprout cutting, stem cutting and conventional tuber against PVY and PLRV

1970 ◽  
Vol 34 (4) ◽  
pp. 609-622 ◽  
Author(s):  
MS Rahman ◽  
AK Akanda
Keyword(s):  
Plant Growth ◽  
Key Words ◽  
Seed Potato ◽  
Mixed Infection ◽  
Tuber Yield ◽  
Growth Yield ◽  
Stem Cutting ◽  
Third Generation ◽  
Potato Plants ◽  
Seed Tubers

The performance of seed tubers harvested from potato plants grown from sprout cutting, stem cutting and conventional seed tubers against PVY and PLRV were investigated. Sprout cutting, stem cutting and conventional seed tubers of variety Diamant were planted and second and third generation seed tubers were harvested. The least incidence of PVY and PLRV was recorded when seed tubers from sprout cutting were used. Whereas, the highest incidence of the viruses was observed where conventional seed tubers wete planted. Incidence of PVY, PLRV and their mixed infection was lower in earlier generations as compared to later generations. Performance of seed tubers produced from sprout cutting was better in respect of plant growth, tuber number and tuber yield per hill as compared to seed tubers obtained from stem cutting or conventional method. Key Words: Sprout cutting; stem cutting; PVY; PLRV; growth; yield; potato. DOI: 10.3329/bjar.v34i4.5837Bangladesh J. Agril. Res. 34(4) : 609-622, December 2009

scholarly journals PHOSPHORUS FERTILIZATION AND SOIL TEXTURE AFFECT POTATO YIELD

2018 ◽  
Vol 31 (3) ◽  
pp. 541-550 ◽  
Author(s):  
JÉSSYCA DELLINHARES LOPES MARTINS ◽  
ROGÉRIO PERES SORATTO ◽  
ADALTON MAZETTI FERNANDES ◽  
PEDRO HENRIQUE MARTINS DIAS
Keyword(s):  
Sandy Soil ◽  
Soil Texture ◽  
Tuber Yield ◽  
Clayey Soil ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Growth And Yield ◽  
Phosphorus Fertilization ◽  
Potato Plants ◽  
Randomized Block Design

ABSTRACT Potato (Solanum tuberosum L.) is a nutritionally demanding crop, and phosphorus (P) is a nutrient that exerts a large effect on tuber yield. However, as the availability of P is influenced by soil texture, there are doubts about how P supplementation affects the growth and yield of potato plants in different soil textures. Thus, here we aimed to evaluate the effect of P fertilization and soil texture on the nutrition, growth, tuber yield, and P use efficiency (PUE) of potato plants. The experiment was conducted under greenhouse conditions in a randomized block design with a 4×2 factorial scheme and five replications. The treatments were represented by four P rates (10, 50, 100, and 200 mg dm-3 P) and two soil textures (clayey and sandy). The concentrations of P, Ca, and Mg in the leaves were higher in sandy soil, and P rates increased the concentrations of N, P, and Ca in the leaves of potato plants. Phosphorus fertilization increased plant growth, the amount of P accumulated in the shoot, and tuber yield in both soils; this trend was stronger in the potato cultivated in the clayey soil than in the sandy soil. The applied-PUE was not affected by soil texture. In the potato cultivated in the sandy soil, the taken up-PUE was reduced due to the decrease in dry matter production and an increase in P concentration in the organs of the plant with higher P fertilizer rates.

scholarly journals INITIAL SPROUT GROWTH OF POTATO SEED MINITUBERS UNDER SALT STRESS

2016 ◽  
Vol 3 (1) ◽  
pp. 7-11
Author(s):  
Camilla Paulino de Oliveira ◽  
Gabriel Zanuto Douradinho ◽  
Guilherme Bortolazzo ◽  
Fábio Steiner
Keyword(s):  
Salt Stress ◽  
Dry Matter ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Potato Production ◽  
Potato Seed ◽  
Shoot Height ◽  
Potato Plants ◽  
Salinity Levels ◽  
Sprout Growth

Potato (Solanum tuberosum L.) is a major crop worldwide and the tuber yield of currently used cultivars is strongly reduced at high soil salt levels. The effects of salt stress on early sprout growth of potato plants were investigated using the cultivar Ágata. Potato seed minitubers were planted in 0.4 L pots filled with commercial substrate (Bioplant®), and maintained under greenhouse conditions. A completely randomized design with five treatments and five replications was used. Three days after sprouting, potato plants were exposed to five salinity levels [0 (control), 25, 50, 75 and 100 mmol L–1 of NaCl] for 28 days. Results showed that the exposure of plants to 100 mmol L–1 NaCl reduced the shoot height (72%), shoot dry matter (76%) and root dry matter (75%) of potato plants compared to the NaCl-free control. The length of longest roots was not affected by salinity levels, indicating that inhibition of shoot growth is more severe that of the root. The exposure to high salt concentrations severely restricted the early sprout growth of potato plants. Results of this study stated that salt-stress is a constraint on potato production, and the use of cultivars tolerant to salt stress can be a strategy to achieve high levels of potato tuber yield under salinity conditions.

The effect of the time of application of nitrogen and potassium on the growth of the second early potato, variety Craig's Royal

1968 ◽  
Vol 71 (3) ◽  
pp. 283-296 ◽  
Author(s):  
H. P. M. Gunasena ◽  
P. M. Harris
Keyword(s):  
Growth Analysis ◽  
Tuber Yield ◽  
Early Application ◽  
Early Variety ◽  
Time Of Application ◽  
Tuber Bulking ◽  
Late Application ◽  
Growth Development ◽  
Efficient Recovery ◽  
Bulking Rate

SUMMARYThe effect of time of application of nitrogen and potassium on the growth, development and yield of the second early variety Craig's Royal was studied by the technique of growth analysis. There was an indication that witholding nutrients led to the earlier initiation of tubers, but this was of no practical consequence and all treatments affected tuber bulking rate rather than the duration of bulking. Compared with early application, late application of nitrogen depressed tuber yield, although total drymatter yield was not affected. Late application of potassium, however, increased tuber yield; this was associated with an improvement in the recovery of applied potassium. Delaying the application of nitrogen also resulted in its more efficient recovery in the crop. Late application of potassium improved the recovery of early applied nitrogen and vice versa. Reasons are put forward to account for these effects.

scholarly journals Effect of long-term storage at low temperature on storage losses and field performance of seed-potato cultivars.

1989 ◽  
Vol 37 (2) ◽  
pp. 169-172
Author(s):  
N. Buitelaar ◽  
R. Marcus ◽  
R. Wustman
Keyword(s):  
Tuber Yield ◽  
Chilling Injury ◽  
Field Performance ◽  
Potato Cultivars ◽  
Storage Losses ◽  
Seed Tubers ◽  
Long Term Storage ◽  
Size Grade ◽  
Field Emergence

The effects of 0, 5, 4, 3, 2 and 1 month storage at 0.5 degrees C on storage losses, field emergence and development, stem number/plant, tuber yield and size distribution of seed tubers of 12 potato cultivars were investigated. Cv. Ostara was very susceptible to chilling injury; Alpha, Bea, Draga and Jaerla were susceptible to a lesser extent. Storage losses of unaffected cultivars were low; storage losses of affected cultivars varied from 4.2% for cv. Alpha to 51.4% for cv. Ostara. Only visibly unaffected seed tubers were planted in the field. Field emergence of these was 99.8%. Five months at 0.5 degrees followed by presprouting of the seed increased stem numbers/plant and reduced total tuber yield, but decreased tuber yield in the size grade 28-35 mm. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals The yield of potato plants as affected by stem canker (Rhizoctonia solani), blackleg (Erwinia carotovora subsp. atroseptica) and by neighbouring plants

1996 ◽  
Vol 126 (4) ◽  
pp. 429-440 ◽  
Author(s):  
G. A. Hide ◽  
S. J. Welham ◽  
P. J. Read ◽  
A. E. Ainsley
Keyword(s):  
Rhizoctonia Solani ◽  
Field Experiments ◽  
Tuber Yield ◽  
Erwinia Carotovora ◽  
Stem Canker ◽  
Potato Seed ◽  
Size Distributions ◽  
Potato Plants ◽  
Seed Tubers ◽  
Yield Gaps

SUMMARYPotato seed tubers inoculated with Rhizoctonia solani and Erwinia carotovora subsp. atroseptica, to induce stem canker and blackleg respectively, were planted with uninoculated seed tubers in field experiments designed to measure the effects of the diseases and of neighbouring plants on tuber yield. Gaps were also included. The plant variables total and ware (> 150 g) yields and tuber numbers were affected by disease, and also by competition from the two plants on either side in the same row (first neighbours), and increased as competition from neighbouring plants decreased. Plants adjacent to the first neighbours also influenced yields of plants with stem canker but those in adjacent rows did not have a significant effect with either disease. Both diseases altered the tuber size distributions, which were also modified by neighbouring plants. The data were used to predict total and ware yields for crops containing different proportions of healthy, diseased and missing plants.

scholarly journals Growth and yield performance of different generations of seed potato as affected by PVY and PLRV

1970 ◽  
Vol 35 (1) ◽  
pp. 37-50 ◽  
Author(s):  
MS Rahman ◽  
AM Akanda ◽  
IH Mian ◽  
MKA Bhuian ◽  
MR Karim
Keyword(s):  
First Generation ◽  
Second Generation ◽  
Tuber Yield ◽  
Growth Yield ◽  
Growth And Yield ◽  
Potato Seed ◽  
Yield Performance ◽  
Potato Plants ◽  
Seed Tubers ◽  
Fifth Generation

Performance of potato seed tubers of first, second, third, fourth, and fifth generations were evaluated against PVY and PLRV. Potato plants grown from first generation seed tubers were free from PVY infection. Incidence of the virus was the minimal at second generation, which increased afterwards steadily by third, fourth, and fifth generations. Incidence of PLRV was minimal at first generation. It increased gradually with the advancement of generation seed tubers showing the highest incidence at fifth generation. The highest plant growth and tuber yield were recorded at second generation, which was followed by third, fourth, and fifth generations. The highest reduction in plant height, tuber number, and tuber yield were recorded in 5th generation due to infection of PVY and PLRV. Keywords: Generation evaluation; PVY; PLRV; growth; yield; potato DOI: 10.3329/bjar.v35i1.5865Bangladesh J. Agril. Res. 35(1) : 37-50, March 2010

Uji Toksisitas Beberapa Fungisida Nabati terhadap Penyakit Layu Fusarium (Fusarium oxysporum) pada Tanaman Kentang (Solanum tuberosum L.) secara In Vitro (Toxicity Test of several Biofungicides in controlling Fusarium wilt (Fusarium oxysporum) in Potato Plants (Solanum tuberosum L.) by In Vitro)

2019 ◽  
Vol 9 (2) ◽  
pp. 91
Author(s):  
Ghea Dotulong ◽  
Stella Umboh ◽  
Johanis Pelealu
Keyword(s):  
Solanum Tuberosum ◽  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Leaf Extract ◽  
Solanum Tuberosum L ◽  
In Vitro Toxicity ◽  
Potato Plants ◽  
Colony Diameter ◽  
In Vitro Toxicity Test

Uji Toksisitas Beberapa Fungisida Nabati terhadap Penyakit Layu Fusarium (Fusarium oxysporum) pada Tanaman Kentang (Solanum tuberosum L.) secara In Vitro (Toxicity Test of several Biofungicides in controlling Fusarium wilt (Fusarium oxysporum) in Potato Plants (Solanum tuberosum L.) by In Vitro) Ghea Dotulong1*), Stella Umboh1), Johanis Pelealu1), 1) Program Studi Biologi, FMIPA Universitas Sam Ratulangi, Manado 95115*Email korespondensi: [email protected] Diterima 9 Juli 2019, diterima untuk dipublikasi 10 Agustus 2019 Abstrak Tanaman kentang (Solanum tuberosum L.) adalah salah satu tanaman hortikultura yang sering mengalami penurunan dari segi produksi dan produktivitasnya, akibat adanya serangan penyakit layu yang salah satunya disebabkan oleh Fusarium oxysporum. Tujuan penelitian ini adalah mengidentifikasi toksisitas beberapa fungisida nabati dalam mengendalikan penyakit Layu Fusarium (F. oxysporum) pada tanaman kentang (Solanum tuberosum L.) secara In Vitro. Metode Penelitian yang digunakan yaitu metode umpan beracun. Data dianalisis dengan Rancangan Acak Lengkap (RAL) dengan Analisis Varian (ANAVA) yang dilanjutkan dengan menggunakan metode BNT (Beda Nyata Terkecil). Hasil Penelitian, diperoleh nilai toksisitas fungisida nabati tertinggi yaitu pada ekstrak daun sirsak dengan nilai HR (69,44%), kategori berpengaruh, ditandai dengan diameter koloni 2,75 cm (100ppm) dan yang terendah toksisitasnya yaitu pada ekstrak daun jeruk purut dengan nilai HR (49,81%), kategori cukup berpengaruh ditandai dengan diameter koloni 3,75 cm (25ppm). Semakin tinggi konsentrasi yang diujikan maka semakin tinggi toksisitas dari fungisida nabati yang diberikan.Kata Kunci: fungisida nabati, Fusarium oxysporum, tanaman kentang, In Vitro Abstract Potato plants (Solanum tuberosum L.) is one of the horticulture plants which often decreases in terms of production and productivity, due to the attack of wilt, one of which is caused by Fusarium oxysporum. The purpose of this study was to determine the toxicity of several biofungicides in controlling Fusarium wilt (F. oxysporum) in potato plants (Solanum tuberosum L.) in Vitro. The research method used was the In Vitro method with the poison bait method. Data were analyzed by Completely Randomized Design with Variant Analysis (ANAVA), followed by the BNT method. The results showed that the highest biofungicide toxicity value was soursop leaf extract with HR values (69.44%), influential categories, characterized by colony diameter 2.75 cm (100ppm) and the lowest toxicity, namely in kaffir lime leaf extract with a value of HR (49.81%), quite influential category was characterized by colony diameter of 3.75 cm (25ppm). The higher the concentration tested, the higher the toxicity of the biofungicide given.Keywords: biofungicides, Fusarium oxysporum, Potato Plants, In Vitro.

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