Delhi 34 Tobaksfrön

Om Delhi 34 Tobaksfrön

Delhi 34 Tobaksfrön is a new variety of bright (flue-cured) tobacco developed at the Research Station, Delhi, with better tolerance to black root rot disease and higher yield and quality than standard varieties. It’s tall growing with more leaves and less suckers than most other licensed varieties. It shows good tolerance to weather fleck, a leaf disorder, and has cured-leaf qualities satisfactory to the tobacco industry. Delhi 34 was certified as a licensed variety number 1133 on March 8, 1968. The original cross was made between bright tobacco varieties Hicks Broadleaf and Virginia 21, in 1955.
Selections based on increased leaf number and cured-leaf quality, lower number of turned-over leaves and superior plant type were made prior to 1960.
All lines were tested from 1961 to 7963 for tolerance to black root rot disease, caused by the fungus Thielaoiopsis basicola (Berk.)
Delhi 34 is cylindrical to slightly pvramidical in plant type, and produces 17 to 18 well-spaced harvestable leaves. The leaves are light green at the seedling stage but later become medium green.
Leaf shape tends to be oval with pointed tips, obtuse base and distinctly auriculate attachment to the stalk. In the upper stalk part of the plant, the medium-narrow leaves are distinctly crinkled due to shallow depressions on the leaf surfaces; this gives a slightly rough feeling to the leaf. In the mid- and lower-stalk positions, the crinkled appearance is less pronounced.
Lower surfaces of the leaf show a medium-fine venatlon. The cured leaves have a lemon-orange color, medium-heavy body, medium grain and slightly starchy texture.
The performance of Delhi 34 is compared with Hicks Broadleaf, the most commonly grown bright tobacco variety in Ontario.

Förpackningen innehåller minst 50 stycken tobaksfrön.
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