Interaction Effect of the Phosphorus and Sulphur Levels on Growth and Yield Attributes of Linseed (Linum usitatissimum) Crop under Rainfed Condition

Abstract

Linseed (Linum usitatissimum) belonging to family Linaceae, is a blue flowering annual herb that produces small linseed varying from golden yellow to reddish brown color. In India linseed is mainly cultivated in Madhya Pradesh, Maharashtra, Chhattisgarh and Bihar. Phosphorus occurs in most plants at 0.1 and 0.4% on dry weight basis. Like nitrogen, phosphorus is also a constituent of important metabolites, like phosphorylated sugars involved in photosynthesis, respiration and other metabolic processes. The oilseeds require more amount of sulphur for its growth and development than other crops. Plant height was influenced by sulphur and phosphorus levels up to 60 DAS but at 90 DAS all sulphur and phosphorus interaction level produced plant population. Various yield attributes of linseed number of capsule/plant, seed/ capsule, seed yield/plant, stover yield/plant, 1000 seed test weight. The number of capsule/plant and seed /capsule significantly increased with decreased in sulphur and phosphorus levels. Important role 15 kg/ha sulphur and 40 kg/ha phosphorus to increase maximum number capsule and seed/plant. The increase in stover yield of linseed as a result of PXS application may be due to improvement in root development and vegetative growth. Yield and yield attributes also showed significantly effect of sulphur and phosphorus viz. number of capsule/plant, number of seed/capsule, seed yield/plant and stover yield/plant. 1000 seed test weight in sulphur showed non significant as compare to phosphorus. Tha plant height was significantly increase 15 kg/ha sulphur was at par 10 kg/ha of sulphur than phosphorus 40 kg/ha was at par in 30 kg/ha. Number of branches increased with decrease 40 kg/ha phosphorus and 15 kg/ha in sulphur was at with 10 kg/ha sulphur and 30 kg/ha phosphorus. The significant effect of sulphur and phosphorus on root length 40 kg/ha phosphorus was at par with 30 kg/ha and 15 kg/ha sulphur was at par with 10 kg/ha.