Photosyntheserate und Ertragsleistung von Kartoffelklonen

Moll, Antje

doi:10.1007/bf02357116

Cited by 11 publications

(2 citation statements)

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“…Carbon assimilation and partitioning is a complex process involving the photosynthetic capacity of the foliage canopy (Dwelle ef a)., 1981: Moll, 1983, source-sink interactions (Norsberger & Humphries, 1965;Moorby, 1968;Sale, 1974) and hormonal regulation (Wyse, Daie & Saftner, 1980). While canopy structure and duration of the leaf area have been demonstrated to be important components of carbon assimilation (Bremner & Taha, 1966;MacKerron & Waister, 1983;Hawkins, 1982), the results of this study suggest that visual estimation of gross size and shape of potato canopies is not necessarily related to tuber yield.…”

Section: Discussionmentioning

confidence: 99%

“…The vine growth of clones is generally only used to eliminate clones with late maturity, since this is associated with negative harvest characteristics such as immature stolons and difficulty with vine desiccation. Variation in photosynthetic rates among potato clones is well documented (Moll, 1983;Dwelle, Hurley & Pavek, 1983). Photosynthetic rate per unit leaf area is, however, not the sole determinant of yield, and single factor measures of short-term photosynthetic productivity are often poorly correlated with yield (Dwelle et al, 1981).…”

Section: Introductionmentioning

confidence: 99%

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Effect of canopy size and shape on the tuber yield of sixteen potato genotypes

Lynch

Kozub

1993

Annals of Applied Biology

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An experiment was conducted to evaluate the utility of visual assessment of canopy characteristics in the selection of high-yielding clones for the southern Canadian Prairies. Over a 3-yr period the yield development characteristics of 16 genotypes, selected to represent a range of canopy types, both in size and shape, were studied by destructive sampling at five stages during the growing season. While the response over harvest dates was not consistent for the canopy size or shape groups for most yield variables, it was demonstrated that under the short season growing conditions in southern Alberta, canopies intermediate in size and degree of upright growth habit appear to be most efficient in terms of maximising tuber bulking rates. It was concluded that for the southern Canadian Prairies, selection of genotypes with these types of canopy structure is consistent with the objective of developing early-maturing cvs with high tuber yield.

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