Vol. 8, Issue 4 (2020)
Evaluation of K efficient genotypes for improving growth, tuber yield and starch content of cassava (Manihot esculenta Crantz.)
Author(s): M Velmurugan, L Pugalendhi, S Suganya, S Manickam, PR Kamalkumaran and M Anand
Abstract: Cassava or tapioca (Manihot esculenta Crantz.) is one of the most important tuber crops belongs to the family Euphorbiaceae which is grown widely in tropical countries. This crop is cultivated both in irrigated and rainfed conditions and has wider adaptability to poor soil condition, tolerance to drought, pest and diseases. A field experiment was conducted at Tapioca and Castor Research Station, Yethapur with an objective to identify the suitable K efficient lines of cassava with maximum growth, tuber yield and starch content. The trial was laid out in Randomized Block Design (RBD). The eight K efficient accessions are evaluated along with Sree Athulya and local check (YTP 1) for its growth parameters viz., plant height (cm), stem girth (cm), and yield traits viz., number of tubers, tuber yield plant-1 (kg) and quality parameters viz., starch content (%) and HCN content (ppm). The recommended dose of fertilizer for cassava is 90:90:240 kg of NPK ha-1. In this experiment, K fertilizer was not applied to the plots and N and P fertilizers were applied as per the recommendations. The results revealed that the maximum plant height (217.80 cm) and stem girth (14.3 cm) was recorded in YTP 1. The maximum number of tubers (10.2) was recorded in TCa14-4 and the lengthiest tuber (40.6 cm) was observed in YTP 1. Among the K efficient lines evaluated, maximum tuber yield (42.90 t ha-1) and minimum tuber yield (31.47 t ha-1) was recorded in TCa14-6 and TCa14-8 respectively. The highest starch content (30.90%) was recorded in TCa14-5 and the lowest starch content (26.0%) was recorded in TCa14-2. The maximum K uptake was exhibited by TCa 14-6.
DOI: 10.22271/chemi.2020.v8.i4ar.10195
Pages: 3510-3513 | 343 Views 62 Downloads
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How to cite this article:
M Velmurugan, L Pugalendhi, S Suganya, S Manickam, PR Kamalkumaran, M Anand. Evaluation of K efficient genotypes for improving growth, tuber yield and starch content of cassava (Manihot esculenta Crantz.). Int J Chem Stud 2020;8(4):3510-3513. DOI: 10.22271/chemi.2020.v8.i4ar.10195
