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Effect of Seedling Density and Shading Material on Germination and Early Growth of Tobacco ( Nicotiana tabacum L.)
Author(s) -
Sangakkara U. R.,
Keerthi M. M.
Publication year - 1990
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1990.tb00827.x
Subject(s) - seedling , shading , germination , shoot , nicotiana tabacum , biology , agronomy , horticulture , botany , art , biochemistry , gene , visual arts
The effect of four seedling densities developed soon after the emergence and two shading materials were studied in order to elucidate the response of seedling growth of tobacco. Germination and seedling emergence was better in beds under greycloth than under polythene. In contrast, shoot and root growth of tobacco seedlings was superior under polythene at all densities. This observation is attributed to optimal environmental conditions under polythene. The study also revealed that the highest shoot and root growth was at the lowest density. High plant densities hindered plant growth. Well developed plants were seen at the plant density of 165 plants per 0.1 m 2 under polythene.