Grain Yield of Three Sorghum Varieties as Influenced by Seeding Rate and Cutting Frequency
Titel:
Grain Yield of Three Sorghum Varieties as Influenced by Seeding Rate and Cutting Frequency
Auteur:
M.W. Akash H.M. Saoub
Verschenen in:
Journal of agronomy
Paginering:
Jaargang 1 (2002) nr. 2 pagina's 101-104
Jaar:
2002
Inhoud:
The effects of four cutting frequencies (without cut, cut once, cut twice and cut three times) and five seeding rates (20, 40, 60, 80, 100 kg ha-1) were studied on the productivity of three sorghum varieties (common sudangrass, sugar sudangrass hybrid Gll and grazer N2 sudangrass hybrid). Sugar sudangrass hybrid Gll and grazer N2 sudangrass hybrid gave higher yield as compared with common sudangrass variety, which was the least productive among the three varieties used. However, common sudangrass attained maximum panicle length (22 cm) and there was no significant difference among these varieties with reference to thousand grains weight. Common sudangrass planted at a seeding rate of 80-100 kg ha-1 and cut only once or planted at 100 kg ha-1 without cutting treatment showed significantly the highest harvest index (0.443) in contrary to Grazer N2 sudangrass hybrid at a seeding rate of 60 kg ha-1 with two cutting treatments, which gave the lowest harvest index (0.06).
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