scholarly journals Potato varieties (Solanum tuberosum L.) determined the drought tolerance using the plastic cover

2021 ◽  
Vol 32 (1) ◽  
pp. 77-81
Author(s):  
Enkhbold Bataa ◽  
Ninjmaa Orgodol

Selecting potato varieties which is drought-tolerant is one important way to reduce the risk of drought. Field experiments were conducted at potato research field located in the Institute of plant and agricultural science, Mongolia. In this experiment used the Gala, Soloist and Quarta varieties. total of 120 plants which is 40 bulbs from one variety were evaluated the drought tolerant. When we used the plastic cover from the tuber initiation to the bulking stage. The total harvest of potato decreased by 9.2 t/ha on average. The total harvest of potato decreased by 9.2 t/ha on average. When using the plastic cover, Potato harvest is decreased by 3.4 t/ha and tubers of production is decreased by 3.5 t/ha. The weight of non-standard tubers is closely related to the yield of varieties grown in drought conditions (r = 0.89), which accounts for the majority of the total yield by the weight of non-standard tubers. The Production tubers of Gala varieties is more 46.4 percent than the average varieties of potato. Lack of soil moisture decreases at the above stage of potato cultivation reduces the yield by 20-30%, reduces the growth rate, reduces the size and weight of the tubers, and has a significant negative impact on crop growth. Гандаавч ашиглан төмс (Solanum tuberosum)-ний сортуудын ган тэсвэрийг тодорхойлсон дүн Ганд тэсвэртэй сортыг шалгаруулж тарих нь гангийн эрсдэлийг багасгах нэг арга гэж эрдэмтэд үзсээр байна. Туршлага судалгааг УГТХүрээлэнгийн Төмс судлалын туршлагын талбайд Гала, Солист, Куарта сортыг хамруулж нэг сортоос 40 булцуу нийт 120 ургамалд ган тэсвэрийг  үнэлэв. Төмсний таримлын хөгжлийн үе шат болох бундуйлалтаас бүрэн цэцэглэлтийн үе шатанд нь талбайн нөхцөлд гандаавч ашиглахад таримлын нийт ургац дунджаар 9.2 т/га буюу гандаавч ашиглаагүй талбайн ургацаас 3.4 т/га, таваарын булцууны ургац 3.5 т/га тус тус буурсан байна. Гандаавчтай нөхцөлд ургасан сортуудын ургацад стандарт бус булцууны жин нягт (r=0.89) хамааралтай байгаа нь нийт ургацын дийлэнх хувийг стандарт бус булцууны жин эзэлж байна. Гала сорт нь таваарын булцууны ургацаар сортуудын дунджаас 46.4 хувиар илүү байв. Төмсний таримлын дээрх үе шатанд хөрсний чийгийн хангамж дутагдалтай байвал ургац 20-30% буурч, ургах эрчим багасч улмаар булцууны хэмжээ жижгэрч, жин буурч таримлын өсөлт хөгжилтөнд ихээхэн сөрөг нөлөө үзүүлдэг байна.  Түлхүүр үг:  Гала, Солист, Куарта, булцуу, ургац

Nature ◽  
1969 ◽  
Vol 221 (5177) ◽  
pp. 279-280 ◽  
Author(s):  
C. E. PALMER ◽  
O. E. SMITH

1973 ◽  
Vol 80 (3) ◽  
pp. 369-373 ◽  
Author(s):  
K. Simpson ◽  
P. Crooks ◽  
S. McIntosh

SummaryThirteen field experiments were made during 6 years on seed-potato growing farms in south-east Scotland, comparing three rates, 70, 140 and 280 kg K/ha as potassium chloride and four rates of 0–54 kg Mg/ha as kieserite in 3 × 4 factorial experiments.More than 70 kg/ha of potassium increased total yield only at one site, which had a recent history of low K application and very low available K. Yields were decreased by more than 70 kg/ha of potassium at three sites in a season with abnormally dry conditions just after planting. Applied magnesium had little effect on total yield.Extra potassium increased ware yield but decreased seed yield, both consistently, probably because the fertilizer damaged some stolons at or before tuber initiation and fewer tubers developed. The ware/seed ratio was generally increased by extra K, but after the dry spring this ratio was unaltered or reduced. Applied magnesium had little effect on the ratio.Our results suggest that the present rates of K fertilizer, used for commercial seed-potato crops (114–138 kg K/ha) in south-east Scotland are excessive, and a much lower rate of approximately 70 kg K/ha would be adequate except on very low K sites.


1970 ◽  
Vol 38 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Semiha Güler

Effects of nitrogen on the leaf chlorophyll (chl), yield and yield attributing characters of potato as tuber number and mean tuber weight were studied. Correlation coefficients between the investigated characters were determined. Five nitrogen rates (0, 150, 200, 250 and 300 kg/ha) and four potato cultivars (Burren, Slaney, Anna and Emma) were used in the study. First, second, third class tuber yields and total tuber yield, tuber number per plant, and leaf chl were significantly influenced by both nitrogen rate and cultivar, whereas mean tuber weight was affected only by cultivar. Maximum total yield was obtained at 200 kg N/ha. There was significant linear relationship between leaf chl and N applied (R2=0.91). There were significant correlations between chl and yield and yield related characters. Total yield significantly correlated with leaf chl. Correlations between first class yield and total yield as well as total yield and tuber number per plant were highly significant.   Key words: Potato; Solanum tuberosum L.; Leaf chlorophyll; Nitrogen; Yield DOI: 10.3329/bjb.v38i2.5141 Bangladesh J. Bot. 38(2): 163-169, 2009 (December)  


1999 ◽  
Vol 79 (3) ◽  
pp. 439-446 ◽  
Author(s):  
H. Li ◽  
L. É. Parent ◽  
C. Tremblay ◽  
A. Karam

Meadow soils could supply significant amounts of N for several years and reduce N requirements for the potato (Solanum tuberosum L.). We examined a combination of three crop sequences, three cultivars and six N rates in relation to tuber yield and quality. Superior, Kennebec and Snowden were grown as follows on a Tilly silty loam between 1993 and 1995: (1) 3-yr continuous potato cropping of Superior, (2) 3-yr continuous potato cropping starting with Snowden and followed by 2 yr of Kennebec, and (3) 3-yr sequence of Kennebec, oat (Avena sativa L. 'Marion') and Superior. There were six N treatments (0, 70, 105, 140, 175 and 210 kg N ha−1) and a split application of 140 kg N ha−1 (half at seeding and half before hilling). The seasons were either favorable to growth (1993), relatively wet (1994) or relatively dry (1995). In 1993 and 1994, total yield varied between 37 and 50 t ha−1. In 1995, continuous cropping of Kennebec and Superior produced 28 t ha−1 compared with 37 t ha−1 under crop rotation. The rotation increased total yield of Superior by 34% and graded yield by 42% in 1995. The N requirement was closely related to yield, rather than cultivar. Compared with continuous cropping of Superior, tuber-quality index was highest with the rotation for rhizoctonia (Rhizoctonia solani) (67 vs. 57) and common scab (Streptomyces scabies) (90 vs. 82). The incidence of both diseases decreased when at least 70 kg N ha−1 was applied. For common scab, skin coverages was higher at rates of 0, 175 and 210 kg N ha−1 than at intermediate rates of 70–140 kg N ha−1. Mineral N accumulated in the 0–60-cm layer in the interrow and increased rapidly when N rates exceeded 105 kg N ha−1. After sod breakup an N rate in the range of 70–100 kg N ha−1 and crop rotation with cereals sustained the productivity of the potato during 3 yr while minimizing the environmental impact of mineral N. Key words: Crop rotation, common scab, rhizoctonia, reduced N rates, Solanum tuberosum L.


Nature ◽  
1969 ◽  
Vol 223 (5213) ◽  
pp. 1387-1387 ◽  
Author(s):  
A. H. CATCHPOLE ◽  
J. HILLMAN

1972 ◽  
Vol 52 (5) ◽  
pp. 727-733 ◽  
Author(s):  
U. J. PITTMAN

Plants grown in the greenhouse from excised magnetically treated eyes of the Netted Gem potato, Solanum tuberosum L., yielded a greater weight and a greater number of tubers than those grown from untreated eyes. Pregermination magnetic treatment of the eyes sometimes produced an increase in top growth of plants. Plants grown in the field from excised magnetically treated eyes yielded 14% more marketable tubers that weighed 38.5% more than those grown from untreated eyes. Pregermination magnetic treatment of the eye may have effected a change in the metabolic process in the bud that eventually promoted earlier and greater tuber initiation.


1997 ◽  
Vol 74 (2) ◽  
pp. 75-86 ◽  
Author(s):  
David S. Douches ◽  
William W. Kirk ◽  
Kazimierz Jastrzebski ◽  
Christopher Long ◽  
Ray Hammerschmidt

2000 ◽  
Vol 23 (2) ◽  
pp. 149-160 ◽  
Author(s):  
J.E. PARDO ◽  
A. ALVARRUIZ ◽  
J.I. PÉREZ ◽  
R. GÓMEZ ◽  
R. VARÓN

2020 ◽  
Vol 6 (5) ◽  
pp. 203-210
Author(s):  
V. Pechenkina ◽  
S. Boronnikova

Monitoring of potato varieties phytosanitary status is a necessary measure of its stable yield, since due to the vegetative propagation method, the accumulation of viruses increases over generations. Fourteen varieties of Solanum tuberosum L. grown in the Perm Territory were studied for infection with the potato viruses PVX (X) and PVY (Y). Among them six (Rosara, Impala, Aladdin, Lady Claire, Gala, Madeira) are varieties of foreign selection, and 8 varieties (Golubizna, Udacha, Krasavchik, Charodei, Nevsky, Otrada, Tescha, Elizaveta) — domestic selection. Real-time PCR method was used for material investigation, since it allows quick and efficient evaluation of plant material for the presence of viral infection. During real-time PCR Y potato virus was detected in all 90 samples of 14 studied potato varieties from three storage locations. Potato X virus was detected in 54 samples of 11 studied potato varieties from three different storage locations. It was established that the studied planting material of all 14 varieties of potatoes is infected with the Y virus, which affects crop yields to a greater extent. Private households are most susceptible to infection of planting material with X and Y potato viruses. Recommendations are given on reducing the viral diseases of potato planting material.


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