Evaluation of different duration rice (Oryza sativa) cultivars for yield andwater use efficiency under direct seeded conditions

AMIT  KUMAR; RAKESH  KUMAR; MAHAVEER  SINGH; MANGAT  RAM; ASHOK  KUMAR; RAVINDRA; ANITA

doi:10.56093/ijas.v96i5.149739

Authors

AMIT KUMAR Rice Research Station Kaul (Kaithal), Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 136 021, India
RAKESH KUMAR Rice Research Station Kaul (Kaithal), Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 136 021, India
MAHAVEER SINGH Rice Research Station Kaul (Kaithal), Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 136 021, India
MANGAT RAM Rice Research Station Kaul (Kaithal), Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 136 021, India
ASHOK KUMAR Rice Research Station Kaul (Kaithal), Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 136 021, India
RAVINDRA Rice Research Station Kaul (Kaithal), Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 136 021, India
ANITA Rice Research Station Kaul (Kaithal), Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 136 021, India

https://doi.org/10.56093/ijas.v96i5.149739

Keywords:

Aerobic, Cultivars, Direct seeded rice, Transplanted, Water use efficiency

Abstract

A field experiment was conducted during rainy (kharif) seasons of 2019 and 2020 at Rice Research Station Kaul (Kaithal), Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana to evaluate seven rice (Oryza sativa L.) cultivars [(HKR 09-93 (medium), HKR 127 (medium), HKR 14-30 (mid early), HKR 47 (mid early), IR 99-784-255-91-1-5 (early), HKR 49 (early) and HKR 48 (early)], for yield and water use efficiency under the direct seeded (aerobic) conditions relative to puddled transplanted control. Grain yield of all the short duration cultivars was at par both under the aerobic and transplanted conditions. However, the yield of longer duration (mid-early and medium) cultivars reduced significantly under aerobic conditions compared to that under the transplanted conditions with comparatively more yield reduction in medium duration cultivars ( 26.3%) than in mid early cultivars (21.7 22.0%). The short duration cultivars, except HKR 48, were found significantly superior to longer duration cultivars under the direct seeded conditions. The highest water use efficiency (7.74 kg/ha/mm) was achieved with HKR 49. Net income obtained from short duration cultivars under direct seeded conditions was comparable to that under transplanted conditions but the income from medium and mid-early duration cultivars reduced significantly (by ₹20,077/ha – ₹2,8918/ha) under direct seeding. The short duration cultivars, except HKR 48, were more profitable than the longer duration varieties under the aerobic conditions with HKR 49 fetching the highest net returns (₹84,963/ha). It can be concluded from the results that short duration rice cultivars may be developed, identified and recommended for the success of water saving direct seeding technology of rice cultivation.

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