A Study of the Correlation and Path Coefficient Analysis of Morphological Traits for Seed Yield and Oil Content in Safflower (Carthamus tinctorius L.) under Late Sown Condition
Nishat Perveen *
Genetics and Plant Breeding, Indira Gandhi Krishi Vishwavidyalaya, Raipur, C.G., India.
Sonu Kumar
Viswa Bharati University, Shantiniketan, West Bengal, India.
T. John Ratnakar
Department of Biochemistry, Dr. Y. S. R. Horticultural University, Andhra Pradesh, India.
Rajan Ghanghas
Chaudhary Charan Singh Haryana Agricultural University, Hisar, India.
Japani Chinir
Department of Agronomy, FGI, College of Agricultural Sciences, Manipur, India.
V. Santhini
Genetics and Plant Breeding, ICAR- IARI, New Delhi, India.
Md Imtiyaz
Department of Genetics & Plant Breeding, Bidhan Chandra Krishi Vishwavidyalaya, West Bengal, India.
Sambit Kumar Parida
Department of Agronomy, Odisha University of Agriculture and Technology (OUAT), Odisha, India.
Ehsas Pachauri
Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, Punjab, India.
S. Bhavya Ratna Madhuri
Department of Agricultural and Rural Development, Maris Stella College, Vijayawada, Andhra Pradesh, India.
Bibhash Ranjan Sahu
Department of Plant Pathology, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, India.
Richa Dubey
Department of Genetics and Plant Breeding, Navsari Agricultural University, Navsari, Gujarat, India.
Ashwani Kumar Singh
Department of Genetics & Plant Breeding, Jaipur National University, Jaipur, Rajasthan, India.
*Author to whom correspondence should be addressed.
Abstract
Background: Safflower (Carthamus tinctorius L.) is a significant oil crop produced under a wide range of agro-climatic conditions, and the inability to plant the crop on time frequently puts the crop at risk of heat stress, which negatively affects the seed production and oil content.
Aims: The purpose of this study was to examine the relationship between morphological traits and the effects of late-sowing on safflower seed production and oil content, both directly and indirectly.
Method: The experiment was carried out in an augmented design with 150 accessions of safflower germplasm and four varieties of checks in Rabi 2014-15 and 2015-16. Yield and oil content were two of eleven quantitative characteristics.
Results: There was a negative relationship between the days to 50% blooming and seed output and oil content, but a positive relationship between the number of effective capitula per plant, the number of seeds per capitulum, and 100-seed weight, according to the phenotypic correlation study. Path coefficient study showed that, in terms of direct positive impact on seed output, the number of effective capitula per plant was the most important factor, followed by 100-seed weight. When it came to oil content, the most positively impactful factor was 100-seed weight, whereas the most negatively impactful was days to flowering.
Conclusion: These findings indicate that capitula number and seed weight selection would work well in enhancing seed plant output and oil content of safflower grown in late sown conditions.
Keywords: Safflower, late sown condition, correlation analysis, path coefficient analysis, seed yield, oil content