The Influence of Some Factors on the Keeping Quality of Onions

habil,; Kepka, A.K.; Sypien, M.

doi:10.17660/actahortic.1971.20.8

Cited by 3 publications

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“…It will be helpful for selecting good hybrids or varieties for onion growers to have good keeping storability and profitability. However, the quality of bulbs is directly affected by the environmental factors, harvesting stage of bulb development, place of storage, keeping and packing conditions [7,8]. Therefore, the present investigation was undertaken to assess the several new onion hybrids develop through three-way cross along with their parents for having less problem of weight losses due to sprouting and rotting, and long storage quality at normal room temperature and relative humidity.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Three-Way Cross Hybrids and Their Parents for Storage Losses in Onion (Allium cepa L.)

Pandav

Gowda

Varalakshmi

et al. 2020

IJECC

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The aim of present investigation was the assessment of the several new onion hybrids develop through three- way cross along with their parents for having less problem of weight losses due to sprouting and rotting, and long storage quality at normal room temperature and relative humidity. The design of experimental plot was complete randomized block design (CRBD) with three replications. This study was carried out in the year of 2018-2019 at Division of Vegetable Crops, ICAR-Indian Institute of Horticultural Research, Hessaraghatta, Bengaluru, India. Thirty hybrids developed by three- way cross, thirteen parental lines and one check have been included for the experiment. Three F1 hybrids used as female lines and ten commercial varieties used as male testers, were taken to develop the hybrids through line x tester design. The bulbs of all these genotypes were kept for four months in normal storage chamber at 25-30°C room temperature with 65-70% relative humidity. The overall losses of per cent bulb weigh was recorded and conclude that the three-way hybrids TWCHO-15 (26.91) were recorded for smallest amount of loss followed by TWCHO-5 (27.02), TWCHO-14 (28.83) and TWCHO-4 (29.98). These hybrids can be suggested for more profit to onion grower by keeping for long shelf-life.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Three-Way Cross Hybrids and Their Parents for Storage Losses in Onion (Allium cepa L.)

Pandav

Gowda

Varalakshmi

et al. 2020

IJECC

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Effects of fertilisation and irrigation practices on yield, maturity and storability of onions

Suojala¹,

Salo²,

Pessala³

1998

AFSci

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The study aimed to establish whether a high onion yield and good storage performance could be obtained with low fertilisation rates if irrigation was applied when necessary. Two-year experiments investigated the effects of three NPK fertiliser levels (N 50, 100, 125/150 kg/ha), with and without irrigation, on yield, advancement of maturity, storage losses and shelf life. High fertilisation advanced maturity but irrigation had no effect. High fertilisation increased yield only in 1996 (5B7%), but irrigation increased the yield noticeably: by 33.5% in 1995 and 8.5% in 1996. There was no interaction between fertilisation and irrigation. The low fertilisation optimum is attributed to the mineralisation of soil nitrogen, as the soil was rich in organic matter. At the low fertilisation level, plants took up twice as much nitrogen as present in the fertiliser, and with increased fertilisation the nitrogen uptake increased markedly. The foliage nitrogen content was low, evidently as a result of late harvesting. Treatments had only a minor effect on the storage performance and shelf life of onions. The results suggest that fertilisation rates could be reduced in onion production. Irrigation during warm and dry periods is essential to achieve the maximum yield potential and does not impair the storage quality of onions.;

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Effect of harvest time on storage loss and sprouting in onion

Suojala¹

2001

AFSci

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Storability of onion is affected by timing of harvest. However, the optimal time for maximum yield and maximum storability do not necessarily coincide. This study aimed to determine the most suitable harvest time for obtaining a high bulb yield with high quality and storability. Storage experiments were conducted on onions produced in field experiments at a research field and on farms in four years. Results indicate that harvesting could be delayed to 100% maturity, or even longer, without a marked increase in storage loss. In rainy years, late harvest is likely to impair the quality. The incidence of sprouting in shelf life tests varied considerably between years. An early harvest before 50% maturity and a delayed harvest increased the risk of sprouting. It may be concluded that the harvesting of onions for long-term storage can be timed to take place between 50% maturity and even some weeks after complete maturity without a loss in storage quality. Therefore, it is possible to combine high yield and good storage quality.

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The Influence of Some Factors on the Keeping Quality of Onions

Cited by 3 publications

References 0 publications

Evaluation of Three-Way Cross Hybrids and Their Parents for Storage Losses in Onion (Allium cepa L.)

Evaluation of Three-Way Cross Hybrids and Their Parents for Storage Losses in Onion (Allium cepa L.)

Effects of fertilisation and irrigation practices on yield, maturity and storability of onions

Effect of harvest time on storage loss and sprouting in onion

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