A Study on Correlation and Path Coefficient Analysis for Yield and Associated Traits in Bread Wheat (Triticum aestivum L.)
Roshani Singh
Dept. of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (224 229), India
Vinod Singh
Dept. of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (224 229), India
Abhishek Dwivedi
Dept. of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (224 229), India
Hariome Singh
Dept. of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (224 229), India
Priya Sharma
Dept. of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (224 229), India
Parshant Kumar Sharma
Dept. of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (224 229), India
Anand Kumar Shahi
Dept. of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (224 229), India
Joy Kumar Dey
KVK-Sepahijala, Central Agricultural University (Imphal), Latiacherra, Tripura (799 103), India
Ashim Debnath*
Dept. of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, Uttar Pradesh (224 229), India
DOI: https://doi.org/10.54083/ResBio/4.3.2022/113-118
Keywords: Correlation, Grain yield, High yielding varieties, Path coefficient, Wheat
Abstract
Wheat (Triticum aestivum L.) is the world's most important cereal grain which contains carbohydrate, protein, fat, minerals and significant amounts of vitamins. A study was conducted in Augmented Block Design with 105 genotypes of bread wheat with four checks (HD-2967, DBW-222, DBW-107, and HD-2733) for estimation of means, range, correlations and path-coefficient. A wide range of variations were observed for different characters under study. The genotype RAJ-4549 (16.35), UP-3056 (15.78), DBW-344 (15.78), produced highest grain yield plant-1 followed by NW-8076 (15.36) and NW-8019 (15.14). In case of correlation study, grain yield plant-1 had a highly significant and positive correlation with tillers plant-1, biological yield plant-1, peduncle length, and spike length; whereas a non-significant negative correlation was found with days to 50% flowering, plant height and days to maturity. In path coefficient analysis, major positive direct effect on grain yield plant-1 was exerted by biological yield plant-1, followed by harvest-index, number of grain spike-1, peduncle length, number of tillers plant-1, test weight, days to 50% flowering and spike length. Tillers plant-1 and peduncle length exhibited high order positive indirect effects on grain yield plant-1 via biological yield (0.87) and (0.69) respectively. The characters showing highly significant positive correlation among yield and its components can be further validated and if consistent performance is found in future study; emphasis should be given to those characters while developing high yielding varieties.
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Reference
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