Studies on seed vigour tests and their correlation with field emergence in pigeonpea (Cajanus cajan)


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Authors

  • K. KANAKA DURGA Seed Research and Technology Center, Rajendranagar, Hyderabad 500 030 Author
  • N. MANOHAR REDDY Seed Research and Technology Center, Rajendranagar, Hyderabad 500 030 Author
  • K. KESHAVULU Seed Research and Technology Center, Rajendranagar, Hyderabad 500 030 Author
  • M. JYOTHI Seed Research and Technology Center, Rajendranagar, Hyderabad 500 030 Author
  • R. ANKAIAH Seed Research and Technology Center, Rajendranagar, Hyderabad 500 030 Author
  • M. GANESH Seed Research and Technology Center, Rajendranagar, Hyderabad 500 030 Author

https://doi.org/10.56093/sr.v40i1.164536

Keywords:

Correlation, field emergence, pigeonpea and seed vigour tests

Abstract

Studies on seed vigour tests and their association with field emergence in pigeonpea (Cajanus cajan L.) seed quality were conducted at Seed Research and Technology Center, Rajendranagar, Hyderabad. The studies were carried out on fresh and carry over seed lots of three cultivars for various vigour tests which includes germination test, first count, final count, total seedling length, seedling dry weight, seedling vigour index I and II. The results were correlated with field emergence. Irrespective of test media for germination, seed vigour tests of first count and final count showed that germination was higher in fresh seeds (FL) than carry-over (CL) seeds of all the genotypes. Germination decreased gradually with increased storage in all the varieties of pigeonpea in both between paper and sand media. Similar trend was noticed for seedling dry weight, seedling vigour index I and II. Fresh seed lots of Asha, Laxmi and Palnadu varieties recorded 23.56%, 29.0% and 9.98% increase in field emergence index over aged lots. The first and final counts of germination, seedling vigour index I and II, calculated under laboratory conditions, significantly correlated with field emergence index and field emergence. The results demonstrated that seedling vigour tests such as germination, seedling vigour index and electrical conductivity of seed leachates were the most sensitive indicators in prediction of field emergence of pigeonpea in fresh and carry-over seed lots.

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References

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Submitted

2025-02-06

Published

2025-02-06

Issue

Vol. 40 No. 1 (2012): Seed Research

Section

Articles

How to Cite

K. KANAKA DURGA, N. MANOHAR REDDY, K. KESHAVULU, M. JYOTHI, R. ANKAIAH, & M. GANESH. (2025). Studies on seed vigour tests and their correlation with field emergence in pigeonpea (Cajanus cajan). Seed Research, 40(1), 78-85. https://doi.org/10.56093/sr.v40i1.164536