Home   Research Articles   Genetic yield potential of rice (Oryza sativa) through water saving and high-yielding SRI technology

Genetic yield potential of rice (Oryza sativa) through water saving and high-yielding SRI technology

SURENDRA K GHRITLAHRE, ASHOK KUMAR SARIAL, and RATTAN SINGH, MANGAT RAM, DES RAJ ANEJA
CCS Haryana Agricultural University Campus, Kaul, Haryana 136 021

The system of rice intensification (SRI) that evolved in the 1980s in Madagascar is also gaining popularity in India. SRI saves not only the seed (a seed rate of 5–7 kg/ha as against 25–30 kg/ha for normal) but also saves water (35–40%) as the fields are not inundated continuously. It leads to higher ripening ratio and increases yield by 10–25%. The varietal response to SRI and conventional cultivation is wide.  The system of rice intensification (SRI) that evolved in the 1980s in Madagascar is also gaining popularity in India.  SRI saves not only the seed (a seed rate of 5–7 kg/ha as against 25–30 kg/ha for normal) but also saves water (35–40%) as the fields are not inundated continuously. It leads to higher ripening ratio and increases yield by 10–25%. The varietal response to SRI and conventional cultivation is wide. Varieties differed in their genetic potential and all the varieties are not promising for SRI cultivation. There is need to develop/identify varieties that give better response to SRI cultivation. Therefore, the present investigation on comparative evaluation of rice genotypes for yield and its components under SRI and conventional system was undertaken to identify suitable cultivars for SRI. Varieties differed in their genetic potential and all the varieties are not promising for SRI cultivation. There is need to develop/identify varieties that give better response to SRI cultivation. Therefore, the present investigation on comparative evaluation of rice genotypes for yield and its components under SRI and conventional system was undertaken to identify suitable cultivars for SRI.

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