Abstract
The study was conducted on psyllium seed to assess the combine effect of seeding density and potassium rates on growth, productivity and yield. A factorial study was carried out in Randomized Complete Block Design (RCBD), during winter season of 2020-21, at Tobacco and Medicinal Crop Research Institute, Tandojam. The seeding densities were maintained at 6.5, 7.5 and 8.5 kg ha-1. Whereas potassium was applied @ 0, 20, 40, 60, 80 and 100 kg ha-1. The data were recorded for various quantitative, qualitative and yield parameters. The results shown that all quantitative parameters had non-significant effect of various potassium levels and seeding density except plants m-2. The values of plants m-2 were observed higher at potassium level 100 kg ha-1 and seeding density level of 8.5 kg ha-1. While the qualitative parameters had significant differences due to various potassium levels and seeding density, excludes days to 50% spike emergence, days to 50% maturity and seed index. The seed weight spike-1 (g), seed index (g) and seed yield (kg ha-1) were observed maximum from the plants where potash was applied at 100 kg ha-1. In qualitative parameters, the seeding density at 7.5 kg ha-1observed higher seed yield (1152.33 kg ha-1). While higher seed weight spike-1 (0.14g) observed at seeding density 6.5 kg ha-1. Among growth parameter, leaf area was increased at potash level 60 kg ha-1 and the values of seeding density showed higher leaf area at seeding density level 8.5 kg ha-1. The same pattern showed of leaf area index where seeding density was higher at seeding density 8.5 kg ha-1. Leaf area duration and total dry matter were found significantly higher at potash level 100 kg ha-1 and seeding density 8.5 kg ha-1. While the net assimilation rate was greater at seeding density level 8.5 kg ha-1. It is concluded from the results that and seeding density 7.5 kg ha-1 and increased levels of potassium at 100 kg ha-1 had ensure better results for most quantitative, qualitative and yield attributes.
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More From: Pakistan Journal of Agriculture, Agricultural Engineering and Veterinary Sciences
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