• Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal
Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 7, Special Issue 1 (2018)

Genetics of late leaf spot disease resistance and pod productivity per se traits in two interspecific crosses of groundnut (<em>Arachis hypogaea</em> L.)

Author(s):

Nayana Devi and DL Savitramma

Abstract:
To study the genetic basis of late leaf spot (LLS) disease, pod yield and yield attributing characters in groundnut crosses GKVK 17 × ICGV 86590 and GPBD 4 × TMV 2 was developed using contrasting parents for LLS disease and yield attributing traits. The material for present investigation consisted of five generations P<sub>1</sub>, P<sub>2</sub>, F<sub>1</sub>, F<sub>2</sub> and F<sub>3</sub> of two crosses. Observations were recorded on growth parameters and LLS disease scores of P<sub>1</sub>, P<sub>2</sub>, F<sub>1</sub>, F<sub>2</sub> and F<sub>3</sub> progenies at 60<sup>th</sup>, 75<sup>th</sup>, 90<sup>th</sup> and 115<sup>th</sup> DAS. Test of segregation of F<sub>2</sub> individuals for LLS disease resistance showed significant difference when tested for Mendelian ratios, indicated that LLS disease is governed by interaction of genes. In all the vegetative and reproductive characters, additive, dominance and one or more of the epistatic effects determined the expression. Therefore, individual plant selection could be appropriate for improvement of yield <em>per se</em> traits and LLS disease. There are 76 superior segregates in GKVK 17 × ICGV 86590 and 65 superior segregates in GPBD 4 × TMV 2 with lower LLS disease score coupled with higher pod yield would be selected

Pages: 2984-2991  |  991 Views  178 Downloads

How to cite this article:
Nayana Devi and DL Savitramma. Genetics of late leaf spot disease resistance and pod productivity per se traits in two interspecific crosses of groundnut (<em>Arachis hypogaea</em> L.). J Pharmacogn Phytochem 2018;7(1S):2984-2991.

Important Publications Links
Journal of Pharmacognosy and Phytochemistry Pharmacognosy

Journal of Pharmacognosy and Phytochemistry

Call for book chapter