Vol. 9 (2) : March-April 2018 issue
Green Farming Vol. 9 (2) : 228-230 ; March-April, 2018
Character association studies for early vigour traits and yield components in direct sown rice (Oryza sativa L.)
M. SRILAKSHMI CHAITANYA1*, B. KRISHNA VENI2, M. LAL AHAMED3, M. GIRIJA RANI4 and K. JAYA LALITHA5
Department of Genetics and Plant Breeding, Agriculture College, Bapatla - 522 101, Guntur (Andhra Pradesh)
Designation : 1Student *(mangalapurichaitanya@gmail.com), 2Asstt. Professor, 3Assoc. Professor, 4Scientist, 5Professor
Subject : Crop Genetics and Plant Breeding
Paper No. : P-7202
Total Pages : 3
Received : 04 March 2018
Revised accepted : 30 March 2018
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Citation :
M. SRILAKSHMI CHAITANYA, B. KRISHNA VENI, M. LAL AHAMED, M. GIRIJA RANI and K. JAYA LALITHA. 2018. Character association studies for early vigour traits and yield components in direct sown rice (Oryza sativa L.). Green Farming Vol. 9 (2) : 228-230 ; March-April, 2018
ABSTRACT
The study was conducted to examine the relationships between seed vigour traits and yield components in 48 rice (Oryza sativa L.) genotypes. Character association and path analysis for 13 traits were studied under dry direct sowing conditions in rice. The results revealed that plant height and number of ear bearing tillers has positive and significant correlation with grain yield whereas dry matter at 14 days after sowing and germination percentage had negative and significant association with grain yield. Path analysis revealed that plant height, number of ear bearing tillers, test weight, shoot length at 7 days after sowing & root length at 14 days after sowing has positive direct effect on grain yield and also positive correlation with grain yield.
Key words :
Correlation, Path analysis, Rice genotypes, Vigour traits, Yield attributes.
