Physiological and Biochemical Properties of Sweet Potato as affected by Agronomic Practices Under Sub-Tropical North Eastern Hills of India

Authors

  • Manas Ranjan Sahoo ICAR Research Complex for NEH Region, Manipur Centre, Lamphelpat, Imphal- 795 004, Manipur, India
  • Subhra Saikat Roy ICAR Research Complex for NEH Region, Manipur Centre, Lamphelpat, Imphal- 795 004, Manipur, India
  • N Rakesh Singh Central Agricultural University, Iroisemba, Imphal-795004, Manipur, India
  • Y Indrani Devi ICAR Research Complex for NEH Region, Manipur Centre, Lamphelpat, Imphal- 795 004, Manipur, India
  • Narendra Prakash ICAR Research Complex for NEH Region, Manipur Centre, Lamphelpat, Imphal- 795 004, Manipur, India
  • S V Ngachan ICAR Research Complex for NEH Region, Umroi Road, Umiam-793 103, Meghalaya, India

Keywords:

NPK fertilizers, spacing, sweet potato, physiological parameters, biochemical properties, tuber yield

Abstract

The effect of spacing and nutrient management on physiological and biochemical properties of orangefleshed  sweet potato var. Gouri was studied under foot hill conditions of Manipur. The physiological  parameters such as relative water content (RWC) and chlorophyll stability index (CSI); biochemicalparameters such as protein content, total soluble sugar (TSS) and reducing sugar (RS) and NPK  contents in leaves and tubers showed significant variation due to spacings (S1: 60 x 20 cm and S2: 60  x 30 cm) and NPK rates (F1: 60:40:60 ; F2: 75:50:75; F3: 90:60:90 kg ha-1). The RWC and CSIincreased with increasing nutrient doses under spacing S1 and decreased at spacing S2. The NPK  content, TSS and RS in leaf tissues increased significantly with increasing doses of NPK. The leaf  protein content increased with increasing rates of NPK at wider spacing (S2). The treatment  combinations, S1F2 (33.0 t ha-1) and S2F3 (32.7 t ha-1) produced significantly higher tuber yield. Thestudy revealed that NPK @ 75:50:75 kg ha-1 and spacing of 60 x 20 cm can be recommended for  higher productivity and tuber quality of sweet potato under foot hill conditions of Manipur.

Author Biography

Manas Ranjan Sahoo, ICAR Research Complex for NEH Region, Manipur Centre, Lamphelpat, Imphal- 795 004, Manipur, India

Senior Scientist (Horticulture)

References

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Published

2015-01-01

How to Cite

Sahoo, M. R., Roy, S. S., Singh, N. R., Devi, Y. I., Prakash, N., & Ngachan, S. V. (2015). Physiological and Biochemical Properties of Sweet Potato as affected by Agronomic Practices Under Sub-Tropical North Eastern Hills of India. JOURNAL OF ROOT CROPS, 39(2), 117–122. Retrieved from https://ojs338.isrc.in/index.php/jrc/article/view/122

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Research Articles