The association between potato tuber yield and the components of yield in irrigated and dryland environments in the prairies

Lynch, D. R.; Kozub, G. C.

doi:10.4141/cjps91-038

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…Heritability estimates of all the traits excepting ascorbic acid (0.25) were high enough (> 0.69 to 0.98) for selection to be effective. The results on heritability for tuber yield and tuber number were in accordance with the findings of Chaudhary (1985), Gaur et al (1985), Lynch and Kozub (1991) and Luthra et al Each genotype in a replication was planted in plot of 2.4 × 3 m 2 comprising four rows of each 3 m length at 60 (between rows) × 20 (within rows) cm 2 plants spacing. Sprouted seed tubers of 40-45 mm size were planted in the third week of October of respective year.…”

Section: Genetic Parameterssupporting

confidence: 87%

Genetic analysis of tuber yield, processing and nutritional traits in potato (Solanum tuberosum)

et al. 2018

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The present study was aimed to assess the genetic analysis of tuber yield, processing and nutritional traits in potatoes based on evaluation of 23 genotypes during the winter crop season in sub-tropical plains of India. Characters, viz. reducing sugars followed by chip colour score, phenols, soluble proteins, sucrose, total free amino acids and marketable tuber yield had high genotypic and phenotypic variation, heritability and genetic advance as percent of mean and can be improved by practising selection in potato breeding programme. The results revealed that table potatoes possessed high yield and high phenols content. Whereas, processing potatoes recorded moderate tuber yield, but had high soluble protein and high ascorbic acid, low reducing sugars, low sucrose, low phenols and low total freeÂ amino acids. Study suggests that genotypes with moderate to high tuber dry matter, high soluble protein and high ascorbic acid should be selected for improving nutritionally superior table potatoes.

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Section: Genetic Parameterssupporting

confidence: 87%

Genetic analysis of tuber yield, processing and nutritional traits in potato (Solanum tuberosum)

et al. 2018

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“…Sidhu & Pandita (1979), and Lemage & Caesar (1990) considered tuber number to be more important than average tuber weight in determining yield, whereas Maris (1969), Verma (1986), andJoseph et al (1992) considered the contrary to be true. Marls (1988), and Lynch & Kozub (1991) observed that while tuber number was more important for determining tuber yield in some of the progenies and environments, it was average tuber weight that was more important for tuber yield determination in other genotypes and environments. The results from this study suggest that tuber weight is more important in determining tuber yield.…”

Section: Discussionmentioning

confidence: 99%

Analysis of variation and interrelationships in potato germplasm

Birhman

Kang

1993

Euphytica

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“…Potato tuber yield is influenced largely by the number of tubers and average tuber weight (Birhman and Kang, 1993). Lynch and Kozub (1991) observed that while number of tubers was more important in determining tuber yield in some progenies and environments, it was average tuber weight that was more important for tuber yield determination in other genotypes and environments. In this study, number of tubers was more important than average tuber weight for tuber yield determination going by its higher coefficient of determination (Table 5) and direct effect (Table 6).…”

Section: Inter Relationships Between Yield and Yield Componentsmentioning

confidence: 99%

Inter-Relationships Between Yield And Yield Attributes Of Potato Grown Under Supra-Optimal Ambient Temperatures

Amadi¹,

Ene-Obong²,

Okonkwo³

et al. 2009

Glo Jnl Pure Appl Sci

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Forty eight potato genotypes were evaluated in Saminaka (Lat. 10 0 27'N and Long 4 0 E, Mean Min. Temp 25 o C, Mean Max Temp 31.5 o C) during the rainy season of 1999 and 2000 to determine the inter-relationship between yield and some important agronomic traits in the potato grown under high ambient temperatures. The genotypes were laid out in a randomized complete block design with three replications. The genotypes exhibited highly significant variability (P<0.01) for all traits assessed. Tuber yield was positively associated with number of stems/plant (r = 0.246, P<0.05); plant height (r = 0.206, P<0.05); and number of leaves/plant (r = 0.237, P<0.05). Both the correlation and regression of yield on days to tuber initiation and days to maturity were negative and significant. This suggests that earliness in tuber initiation and maturity led to increased yield under supra optimal temperature probably due to reduced period of exposure to heat stress. Number of tubers per plant (R 2 = 0.383) and average tuber weight per plant (R 2 = 0.125) had the highest coefficients of determination of yield and by far the highest direct effects on yield (87.5% and 66.9%respectively) when compared to other attributes suggesting that they were the major contributors to yield under supra-optimal temperature conditions and may be relied upon in selecting for improved yield under such conditions.

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The association between potato tuber yield and the components of yield in irrigated and dryland environments in the prairies

Cited by 5 publications

References 5 publications

Genetic analysis of tuber yield, processing and nutritional traits in potato (Solanum tuberosum)

Genetic analysis of tuber yield, processing and nutritional traits in potato (Solanum tuberosum)

Analysis of variation and interrelationships in potato germplasm

Inter-Relationships Between Yield And Yield Attributes Of Potato Grown Under Supra-Optimal Ambient Temperatures

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