Acta Scientific Agriculture (ASAG)(ISSN: 2581-365X)

Research Article Volume 6 Issue 5

Heterosis Assessment for Yield Related Traits in F1 Rice Hybrids

Fasih Uddin* and Syed Mehar Ali Shah

Department of Plant Breeding and Genetics-Faculty of Crop Production Sciences, The University of Agriculture Peshawar-Pakistan

*Corresponding Author: Fasih Uddin, Department of Plant Breeding and Genetics-Faculty of Crop Production Sciences, The University of Agriculture Peshawar-Pakistan.

Received: January 27, 2022; Published:


Realizing the genetic potential of hybrid rice for yield improvement, the present study was undertaken to study the performance of F1 rice hybrids derived from 8 × 8 full diallel mating design. F1 rice hybrids along with the parents were planted in randomized complete block design with three replications at The University of Agriculture-Peshawar during 2019 rice crop growing season. Significant (P ≤ 0.01) differences among the parental genotypes and F1 hybrids were observed for yield related traits. Most of the F1 rice hybrids showed superior performance for yield related traits in comparison with the parental genotypes. Among F1 cross combinations, Shaheen-Basmati × Shua-92 displayed maximum panicle length (33.7 cm), primary branches panicle-1 (12), secondary branches panicle-1 (35), grains panicle-1 (95), 100-grain weight (4.0 g) and grain yield plant-1 (44.7 g). F1 cross combination, DR-82 × Shaheen-Basmati revealed the highest better-parent heterosis for panicle length (16.38%) and 100-grain weight (32.50%) while F1 hybrid, Shaheen-Basmati × Shua-92 showed maximum better-parent heterosis for primary branches panicle-1 (24.44%) and secondary branches panicle-1 (21.35%). Maximum better-parent heterosis for grains panicle-1 (67.31%) was manifested by F1 cross combination, DR-92 × Shaheen-Basmati whereas highest better-parent heterosis for grain yield plant-1 (157.88%) was displayed by F1 rice hybrid, Shaheen-Basmati × Shua-92. On the basis of the superior performance for yield related traits, F1 cross combinations, DR-82 × Shaheen-Basmati, Shaheen-Basmati × Shua-92 and DR-92 × Shaheen-Basmati are recommended for commercial use as rice hybrids after multi-locational trials. Additionally, segregating generations of these hybrids could be advanced to develop rice cultivars with desirable attributes.

Keywords: Rice; Heterosis; F1 Rice Hybrids; Grain Yield; Yield Related Traits


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Citation: Fasih Uddin and Syed Mehar Ali Shah. "Heterosis Assessment for Yield Related Traits in F1 Rice Hybrids". Acta Scientific Agriculture 6.5 (2022): 12-24.


Copyright: © 2022 Fasih Uddin and Syed Mehar Ali Shah. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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