Journal ArticleDOI
Effect of centre of production, maturity and storage treatment of seed tubers on the growth of early potatoes: II. Field growth
TLDR
A study on the effect of source, time of lifting and post-harvest treatment of apparently virus-free Arran Pilot seed potatoes on subsequent crop growth was carried out in this article, where the authors found that the potato tubers from the more southern region, which were older and showed greater sprout development at planting, gave plants with a higher stem number at soil level, a higher tuber number and a greater percentage of the tuber yield as seed grade than northern-produced seed.Abstract:
Studies were carried out on the effect of source, time of lifting and post-harvest treatment of apparently virus-free Arran Pilot seed potatoes on subsequent crop growth. The experiments were carried out in 1961–2 and 1962–3 at Efford, Sutton Bonington and Edinburgh. Seed tubers from the more southern region, which were older and showed greater sprout development at planting, gave plants with a higher stem number at soil level, a higher tuber number and a greater percentage of the tuber yield as seed grade than northern-produced seed. High bulking rates were associated with early emergence, high tuber numbers and late apparent time of tuber initiation. In 1962 southern seed produced plants which initiated tubers early and had low bulking rates and low final yields. In 1963 seed source had little effect on the time of tuber initiation of resulting plants, and southern-produced seed gave plants with high bulking rates and high final yields. Early lifted and greened tubers gave rise to plants with the same pattern of response as seed produced at the southern centre. It is suggested that this variation in response between years was due to the climatic conditions at the time of tuber initiation in the field crop.Seed of a required state at planting can usually be obtained by growth at the centre of ware production provided disease can be controlled and the time between harvesting of seed and planting is longer than about 3 months.read more
Citations
More filters
Book ChapterDOI
The physiology of growth and tuber yield
TL;DR: The present state of their knowledge of potato physiology is described and how their attitudes and research priorities have changed and areas where the authors appear to need further information are suggested.
Journal ArticleDOI
Accumulated day-degrees as a measure of physiological age and the relationships with growth and yield in early potato varieties
TL;DR: Optimum ages for specific harvesting periods were determined from regressions of tuber yield on age, however, optimum ages differed in the two varieties and the implications for production and storage of seed and testing of varieties are discussed.
Journal ArticleDOI
The Influence of Carbohydrate and Mineral Nutrient Supply on the Growth of Potato Tubers
TL;DR: The uptake and distribution of nitrogen, phosphorus, and potassium has been studied throughout the life of potato plants and the similarities between these distribution patterns and those found in tubers showing second-growth are described and the implications with respect to the control of tuber growth discussed.
Book ChapterDOI
’seed’ tuber production and management
TL;DR: First early potatoes are intermediate in character between a first early and a maincrop and are grown to meet market requirements in midsummer and sell readily, rapidly replacing main-crop potatoes stored throughout the winter.
Journal ArticleDOI
REVIEW A review of some studies into tuber initiation in potato ( Solanum tuberosum ) crops
TL;DR: Over the intervening years, the study of tuber initiation has been an important aspect of research programmes at the University College of Wales (UCW) Field Station, Tenby, Pembrokeshire and Cambridge University Farm (CUF), Cambridge, which have now produced sufficient data for a re-evaluation of the significance of tubers initiation in field-grown potato crops.
References
More filters
Journal ArticleDOI
Natural evaporation from open water, bare soil and grass
TL;DR: It is shown that a satisfactory account can be given of open water evaporation at four widely spaced sites in America and Europe, the results for bare soil receive a reasonable check in India, and application of theresults for turf shows good agreement with estimates of evapolation from catchment areas in the British Isles.
Journal ArticleDOI
Plant Population and Crop Yield
J. K. A. Bleasdale,J. A. Nelder +1 more
TL;DR: The relationship between yield and density in crop plants has been studied by Shinozaki and Kira as discussed by the authors, who proposed a modified version of the original equation, where the form of the curve is parabolic.
Journal ArticleDOI
Relationships between set characters and yield in maincrop potatoes
TL;DR: In this paper, it was shown that both the total yield of potatoes and the proportions of the yield in size grades were a function (independent of set size) of the number of main stems per unit area for the main crop varieties Majestic and King Edward.
Journal ArticleDOI
Environmental Preconditioning, with Special Reference to Forestry
TL;DR: The possibility of Preconditioning in three aspects of forest science—provenance trials, tree seed orchards, and acclimatization–is examined, and the conclusion is drawn that ecological preconditioning is a fertile field for stury and experimentation.