Performance of Drought Tolerant Rice Varieties in Malkangiri District of South Eastern Ghat Zone of Odisha

A K Rai,S R Dash,N Behera,H Das,T K Behera

doi:10.12944/carj.8.2.12

Abstract

Drought is the major problem in India and occurrence at the time of critical growth stages, reduce crop yield significantly. The National Rice Research Institute, Cuttak, Odisha has developed so many drought tolerance rice varieties to reduce the economic loss due to drought. Krishi Vigyan Kendra, Malkangiri introduced NRRI released two rice varieties i.e. Sahbhagi Dhan and Satyabhama at framers' field to evaluate the performance of these drought tolerant varieties in South Eastern Ghat Zone of Odisha. The highest plant height was observed with the rice variety Satyabhama (104.1 cm). But, overall performance of Sahbhagi Dhan was better as compare to Satyabhama and local check verity (Khandagiri). Sahbhagi Dhan gave highest yield of 36.5 q/ha, which was statistically differed from others. Correlations study for Sahbhagi Dhan was assessed and observed the positive correlation for grain yield with all studied characters except plant height. For economic point of view, Sahbhagi Dhan recorded highest net return of Rs.19, 925/- per ha along with B:C ratio of 1.6 as compared to the rest two varieties.

Highlights

India produces a variety of large crops, within that rice is most important that’s feed more than 60% of the population.The country's total rice cultivated area is 43.86 million ha with production of 104.80 million tonnes and productivity of 3.77 t/ha[1]
To evaluate performance of drought tolerant rice varieties in South Eastern Ghat Zone of Odisha, Krishi Vigyan Kendra, Malkangiri carry out an onfarm trial (OFT) with improved rice varieties viz., Sahbhagi Dhan and Satyabhama against locally cultivated short duration variety Khandagiri
Varietal Performance Significant response was noted for plant height between rice varieties (Table 2)

Summary

Introduction

India produces a variety of large crops, within that rice is most important that’s feed more than 60% of the population.The country's total rice cultivated area is 43.86 million ha with production of 104.80 million tonnes and productivity of 3.77 t/ha[1]. In Odisha, 69% cultivated area is under rice and occupied 63% of total area under food grains production.[2]. About 40% of total rice cultivated area in India is rainfed[4]; crop. During 2011, it was estimated that about 0.8–0.10 million hectares area of cultivated rice in rainfed condition was experienced drought stress in Odisha.[5]. Drought during critical stages in the rice growth cycle reduces available moisture for crop growth and there is a drastic reduction in yield. Rainfall in Malkangiri district is sufficient (Average1668 mm) but dry spell during critical crop growth stages drastically reduces productivity of rice. The lost of rice production during drought years in eastern India is estimated to be 36% of the total rice production[6]. To evaluate performance of drought tolerant rice varieties in South Eastern Ghat Zone of Odisha, Krishi Vigyan Kendra, Malkangiri carry out an onfarm trial (OFT) with improved rice varieties viz., Sahbhagi Dhan and Satyabhama against locally cultivated short duration variety Khandagiri

Materials and Methods

Results and Discussion

Conclusion