Abstract

Rice is the major food and a significant source of foreign exchange. To meet internal demand, must develop high quality varieties of rice, including early and late maturing varieties, hybrid and conventional rice varieties. In this study evaluated the adoptability and suitability of different hybrid rice varieties in local soil. The studied hybrid varieties revealed supremacy regarding the growth characters over the inbreed rice. At the reproductive stage, highest plant height was recorded in hybrid variety ennpova-55 (106.5 cm) while inbreed IRRI-9 produced the shortest height (65.5 cm). Whereas no of highest tillers was observed in Winner-55, Tahafuz-121, and Ashoka (24/m-2) and have highest seedling number and lowest no. of tillers were recorded in Komal 21/m-2. Highest plant dry matter per hill was found in Ennova-55 (95.9/g) and lowest observed in IRRI-9 (69.8/g) as compared to others. In chlorophyll studies, highest chlorophyll parameter was observed in Ennova-08 and Pukhraj and lowest was observed only in inbreed varieties. Shoot and root length showed significant variation among the rice. Tallest shoot was found in Ennova-55 (82.3 cm) which was statistically identical with Thafuz-121 (78.1cm), while shortest was found in IRRI-9 (54.1 cm) at harvest. However, the maximum Leaf area index was recorded from Komal (4.50) at heading stage followed by Ennova-55 (4.20), whereas significantly lower in Shakar (2.70). Compared with inbreed, hybrid rice produced a higher yield with BCR of 21.96. However, further research studies are obligatory to perform for adoptability of hybrid rice locally for sustainable rice production.

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