Estimation of Optimum Plot Size and Shape for Branching Variety of Cassava (Manihot esculenta Crantz) Using Statistical Methods

Authors

  • Rakhi T. College of Agriculture, Vellayani, Thiruvananthapuram 695 522, Kerala, India
  • Chandran Arya V. College of Agriculture, Vellayani, Thiruvananthapuram 695 522, Kerala, India
  • Kumar Vijayaraghava College of Agriculture, Vellayani, Thiruvananthapuram 695 522, Kerala, India
  • Joseph Brigit College of Agriculture, Vellayani, Thiruvananthapuram 695 522, Kerala, India

Abstract

Knowledge of optimum size and shape of plots is an important factor in improving precision while conducting agricultural field experiments. An experiment for determination of optimum plot size in a branching variety of cassava (Vellayani Hraswa) was carried out using the Maximum curvature, Smith’s variance law and Modified curvature methods in an area of 200 m2 at Instructional Farm, Department of Agricultural Statistics, College of Agriculture, Vellayani, Thiruvananthapuram, India during 2015-2017. The experimental area selected was having 15 rows and 16 columns (240 plants). The maximum curvature method and Fairfield Smith’s variance method gave most appropriate results. For branching type of varieties, the optimum plot size obtained was 24 units (plants) by these methods under a spacing of 90 cm x 90 cm. Regarding plot shape, 8 x 3 (length as 8 units and breadth as 3 units) is recommended as it gave less coefficient of variation than 6 x 3 units in the maximum curvature method.

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Published

2021-07-14

How to Cite

T., R., Arya V., C., Vijayaraghava, K., & Brigit, J. (2021). Estimation of Optimum Plot Size and Shape for Branching Variety of Cassava (Manihot esculenta Crantz) Using Statistical Methods. JOURNAL OF ROOT CROPS, 46(1). Retrieved from https://ojs338.isrc.in/index.php/jrc/article/view/575

Issue

Vol. 46 No. 1 (2020): Journal of Root Crops 2020 46(1)

Section

Research Articles

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