Study on Climatic Variation and Its Effect on Vegetable Type Soybean Genotypes at Khumaltar, Lalitpur in the Last Ten Years

Authors

  • Santosh Raj Tripathi Nepal Agricultural Research Council, Nepal
  • Jiban Shrestha Nepal Agricultural Research Council, Nepal
  • Jagat Devi Ranjit Nepal Agricultural Research Council, Nepal
  • Reshma Neupane Nepal Agricultural Research Council, Nepal

DOI:

https://doi.org/10.24925/turjaf.v3i6.484-490.297

Keywords:

Climate variation, Glycine max, Seed yield, Ten years, Khumaltar

Abstract

Soybean (Glycine max L. Merril) is widely grown in the mid hills as intercrop with maize or in paddy bunds, while it is gaining popularity as sole crop in terai and inner terai. Mean temperature at Khumaltar during soybean growing period was mostly fluctuating; but we observed an increasing trend in temperature. Amount of rainfall was not changed dramatically but number of rainy days was decreased during study period. Rainfall during germination time increase soil moisture which also increase germination and found higher early stand. Days from sowing to 50% flowering and 90% maturity were short in the case of higher minimum temperature and low rainfall. Among the genotypes, AGS-377, AGS-378, AGS-379 and Tarkari Bhattmas-1 were more sensitive. However, seed yield decreased in the case of higher temperatures and low rainfall. Cool night temperatures and high moisture increased disease incidence in soybean which, eventually reduced yield. In last three years, plant suffered from moisture stress during early vegetative stage and high moisture during late vegetative stage which reduced seed yield and seed weight. In conclusion, we found that genotypes like AGS- 360, Sathiya and Tarkari Bhatmas-1 are very sensitive to climatic variation.

Author Biography

Jiban Shrestha, Nepal Agricultural Research Council, Nepal

Jiban Shrestha has earned Master Degree in Agriculture (M.Sc. Ag) from Institute of Agriculture and Animal Science, Rampur, Chitwan under Tribhuvan University, Nepal in 2007. He is working in the capacity of Scientist (Plant Breeding and Genetics) at National Maize Research Programme, Rampur, Chitwan under Nepal Agricultural Research Council, Nepal since 2010 to till date. Mr. Shrestha has been involved in basic and applied research on maize mainly related to development, maintenance and improvement of hybrid and open pollinated maize varieties as well as soil nutrient management for maize grown in various production systems. He has played vital role for development and release of Rampur Hybrid-2 and two other pipe line hybrids, three pipeline early varieties and one yellow quality protein maize (QPM) variety. He has published more than 35 peer reviewed articles in both national and international journals, more than five proceeding papers, 10 scientific abstracts, 18 scientific reports, 10 magazine articles, one leaflet, one newsletter article and one book. He has been affiliated to more than 85 international peer reviewed online journals and seven national publications as editor or reviewer. Before embarking on his career as Scientist, he had worked as Project Officer at Support Activities for Poor Producers of Nepal (SAPPROS) under Education for Income Generation (EIG) in Nepal Program funded by USAID/Winrock Int‘l Institute for Agriculture Development, Nepal.

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Published

24.04.2015

How to Cite

Tripathi, S. R., Shrestha, J., Ranjit, J. D., & Neupane, R. (2015). Study on Climatic Variation and Its Effect on Vegetable Type Soybean Genotypes at Khumaltar, Lalitpur in the Last Ten Years. Turkish Journal of Agriculture - Food Science and Technology, 3(6), 484–490. https://doi.org/10.24925/turjaf.v3i6.484-490.297

Issue

Section

Crop Production