Internal Browning of Brussels Sprouts: A Calcium Deficiency Disorder1

Maynard, Donald N.; Barker, Allen V.

doi:10.21273/jashs.97.6.789

Cited by 13 publications

(4 citation statements)

References 6 publications

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“…The necrotic injury is similar to the symptoms that develop on carrots when Ca is withheld from the nutrient solution (13) and is similar to the pattern of Ca-related leaf disorders that are documented in cabbage (7), celery (3), brussels sprouts (6), lettuce (11), cauliflower (5), and strawberries (1). Thus, a series of studies were undertaken with carrots to determine if it was a Ca-related disorder, and to study procedures that would be ef fective in preventing its development.…”

supporting

confidence: 65%

Calcium-related Leaf Necrosis of Seedling Carrots

Tibbitts

Setiamihardja

Palzkill

et al. 1983

J. Amer. Soc. Hort. Sci.

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Seedlings of carrot (Daucus carota L.) develop leaf necrosis when subjected to conditions which encourage rapid growth in controlled-environmental chambers. Necrosis occurred on the 4th and 9th developing leaves and was apparent as they unfolded. Injury was determined to be calcium-related, since foliar CaCl2 applications reduced injury and covering the plants during the dark period to promote translocation of Ca by root pressure flow stopped injury completely. Young unfolding leaves in covered plants had 50% greater Ca concentrations than those plants maintained in the chamber without covering. Carrot cultivars had different degrees of sensitivity to the leaf necrosis with ‘Red Core Chantenay’ > ‘Danvers’ > ‘Carousel’ > ‘Scarlet Nantes’.

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supporting

confidence: 65%

Calcium-related Leaf Necrosis of Seedling Carrots

Tibbitts

Setiamihardja

Palzkill

et al. 1983

J. Amer. Soc. Hort. Sci.

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“…There are several other Ca-related disorders which occur in low-transpiring organs, including internal browning of Brussels sprouts (8,22,24), tipburn of lettuce (19,29), blackheart of celery (12), bitter-pit of apple (7,10), and blossom-end rot of tomato (13,26,27). With small amounts of transpirational water movement, root pressure flow may be necessary to translocate adequate Ca to these organs during rapid growth.…”

Section: Ca-related Disorders O F Other Plantsmentioning

confidence: 99%

Enhancement of Calcium Transport to Inner Leaves of Cabbage for Prevention of Tipburn1

Palzkill

Tibbitts

Williams

1976

J. Amer. Soc. Hort. Sci.

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Heading cabbage plants, Brassica oleracea L. (Capitata group) grown under humidity conditions which allowed root pressure flow to occur during the dark period, as indicated by the occurrence of guttation from the leaf margins, remained free of tipburn. Plants grown under conditions which prevented root pressure flow from occurring developed tipburn on both wrapper and inner head leaves. The effect of root pressure flow on 45Ca transport was studied in cabbage plants in the rosette stage of growth. Heads were simulated by covering the inner leaves of the plants. 45Ca was readily transported to inner “head” leaves under high humidity which allowed root pressure flow to occur, while very little 45Ca was moved to these leaves under low humidity which prevented root pressure flow. The data indicate that root pressure flow is required to move adequate amounts of Ca to prevent tipburn in head leaves of cabbage.

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“…Most hydroponic crops are grown in hightech greenhouse structures with fully automatic climate control features (2,3). Both in the world and our country, vegetable cultivation is carried out in 92% of the soilless farms, and the rest are used for ornamental plants (5).…”

Section: Introductionmentioning

confidence: 99%

Mitigating Tipburn True Foliar Calcium Application in Indoor Hydroponicly Grown Mini Cos Lettuce

İkiz,

Daşgan,

Can Öz

2024

BIO Web Conf.

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Hydroponic systems provide a highly advantageous environment for cultivating green leafy vegetables. Among these advantages, there is a significant acceleration in harvest compared to conventional farming methods, the attainment of high yields, enhanced leaf coloring, increased nutritional content, and improved sweetness, all of which are crucial factors. However, a particular issue known as tip burn is encountered when cultivating, especially Yedikule (Romaine) type lettuce in hydroponic systems. This study investigates various calcium dosages applied via foliar spray to mitigate tip burn on Thespian and Suntred lettuce varieties (green and red Romaine mini types). Different calcium dosages were employed for both lettuce varieties. This experiment examined various parameters for both lettuce types, including plant height, root length, stem diameter, plant age, dry weight, root dry and fresh weight, macro and micronutrient content, dry matter, and total yield. The results indicate that combining foliar calcium and adequate ventilation effectively mitigates tipburn. This research emphasizes the significance of such a combined approach in preventing tip burn in hydroponically grown lettuce, specifically Thespian and Suntred varieties.

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Internal Browning of Brussels Sprouts: A Calcium Deficiency Disorder1

Cited by 13 publications

References 6 publications

Calcium-related Leaf Necrosis of Seedling Carrots

Calcium-related Leaf Necrosis of Seedling Carrots

Enhancement of Calcium Transport to Inner Leaves of Cabbage for Prevention of Tipburn1

Mitigating Tipburn True Foliar Calcium Application in Indoor Hydroponicly Grown Mini Cos Lettuce

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