CORRELATION AND PATH ANALYSIS FOR YIELD AND YIELD LINKED TRAITS IN WHEAT (Triticum aestivum L.)

Haris Khan Muhammad; Hassan Mujtaba; Muhammad Sohail Khan; Muhammad Faisal Khan; Nadia Jabeen; Noshin Shafqat; Muhammad Adil Younis; Arshid Iqbal; Umar Sidduqe; Wasiq Saeed; Syed Ihsan Ullah Shah; Khalil Ur Rehman

doi:10.34016/pjbt.2024.21.02.952

Authors

Haris Khan Muhammad Department of Plant Breeding & Genetics, The University of Haripur, Pakistan.
Hassan Mujtaba Student
Muhammad Sohail Khan Department of Agriculture Hazara University Mansehra, Pakistan.
Muhammad Faisal Khan Department of Biotechnology & Genetic Engineering Hazara University Mansehra
Nadia Jabeen Department of Agriculture Hazara University Mansehra, Pakistan.
Noshin Shafqat Department of Agriculture Hazara University Mansehra, Pakistan.
Muhammad Adil Younis Department of Agriculture Hazara University Mansehra, Pakistan.
Arshid Iqbal Agriculture Research Station Baffa Mansehra Pakistan.
Umar Sidduqe Department of Agricultural Sciences, University of Naples Federico || Italy.
Wasiq Saeed Department of Agriculture Plant Breeding & Genetics, Agriculture University Peshawar Pakistan.
Syed Ihsan Ullah Shah Department of Plant Breeding & Genetics, The University of Haripur, Pakistan.
Khalil Ur Rehman Department of Plant Breeding & Genetics, The University of Haripur, Pakistan.

DOI:

https://doi.org/10.34016/pjbt.2024.21.02.952

Keywords:

Wheat, Correlation, Path analysis, Production traits, Yield

Abstract

This study was fixed to estimate the correlation and path analysis for plant height (cm), spike length (cm), 1000-grain weight (g), days to emergence, days to maturity, tillers per square meter, biological yield (g), lodging (%), and grain yield (g) among 22 advanced wheat lines with two checks i.e: Waddan and PS-2005. The replication method known as RCB design with 3 was employed for this experiment. The analysis of variance showed that all 22 wheat advanced lines exhibited significant variation in all studied traits. Mean values for plant height, spike length, 1000-grain weight, days to emergence, days to maturity, tillers per square meter, biological yield, lodging, and grain yield were observed to be 83.84 cm, 11.33cm, 40.74 g, 18, 178, 496, 17.5 kg, 46 and 3928 g respectively. Estimation for yield and yield related attributes specified that correlation of grain yield was extremely remarkable and positive with the traits like spike length, 1000-grain weight, biological yield, tillers/meter² and days to emergence whereas, the correlation for plant height, and lodging, exhibited negative association with grain yield along with days to maturity which showed the negative but non-significant effect on grain yield. Path analysis through direct and indirect effect revealed that tillers/meter² and days to emergence paramount significant and direct positive effect on yield which summed up that these two traits directly influence grain yield whereas, 1000-grain weight, biological yield, and days to maturity have also showed direct positive but non-significant effect on yield. Based on the results, it can be determined that selecting wheat genotypes to enhance grain yield should focus on yield-contributing traits that show a significant positive relationship and exhibit a significant positive direct effect on grain yield. These traits should emphasized in further selection and can have a dynamic role in breeding systems.

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