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Bentuk Sel Epidermis, Tipe dan Indeks Stomata 5 Genotipe Kedelai pada Tingkat Naungan Berbeda

Titik Sundari, Rahmat Priya Atmaja


Shape of Epidermal Cells, Type and Stomata Index of 5 Soybean Genotypes at Different Levels
of Shading. This study aimed to determine the shape of epidermal cells, type of stomata and
the stomatal index of five soybean genotypes at different levels of shading. Research conducted
at the Screen House of Indonesian Legumes and Tuber Crops Research Institute in March
until July 2007. Split plot design with repeated three times was used in this research. The main
plots were four levels of shading (0%, 25%, 50% and 75%) and subplot is the five soybean
genotypes (Pangrango, Tanggamus, Wilis, Lokon and IAC-100). Shading is used black screen.
Plants fertilized with the 50 kg Urea + 100 kg SP36 75 + 75 kg KCl / ha. Fertilizing done at
planting time. The results showed that shade does not change shape of epidermal cell and
stomata types of five soybean genotypes. Differences in stomatal index was not determined
by interaction of genotypes with levels of shading, but by the differences in shade and
genotype. Shading treatment increased stomatal index of soybean abaxial leaf surface. Highest
Somatal index of soybean abaxial leaf surface is achieved by IAC 100 and the lowest is achieved
by Wilis. Wilis is a genotype that can be adapted to the shaded environment, by maintaining
leaf area, number of epidermial cells and stomata, stomatal index, and seed weight.
Key words : soybean, shading, epidermis and stoma

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