STABILITY OF BLACK GRAM (Vigna mungo L. Hepper) VARIETIES FOR SEED YIELD

  • Jiji Joseph College Of Horticulture, Kerala Agricultural University
  • Rose Mary Francies College of Horticulture, Kerala Agricultural University, Vellanikkara
  • A.V. Santhoshkumar College of Forestry, Kerala Agricultural University, Vellanikkara
  • K.M. Sunil College of Horticulture, Kerala Agricultural University, Vellanikkara
  • E.M. Dayalakshmi College of Horticulture, Kerala Agricultural University, Vellanikkara
Keywords: Black gram, seasons, PTI, stability, AMMI model, Biplots

Abstract

Twelve black gram varieties were evaluated for six seasons from rabi 2009 to rabi 2011 at Thrissur, Kerala, India to assess the genotype x environmental interactions. Analysis of variance on the data pooled over seasons showed significant  difference between varieties, seasons and the interaction between varieties and seasons  for days to flowering and yield. Flowering in blackgram was found to be influenced by photothermic index (PTI) rather than growing degree days (GDD). Rainfall received during the first three weeks after sowing had greater influence on seed yield. Genotype x environment interaction by AMMI model showed  blackgram variety T9 as the best variety with respect to yielding ability suited for cultivation under favourable conditions.  The varieties CO5 and TAU 1 with moderate yield capacity were found to be highly stable under differing environments and hence can be recommended for cultivation when prediction of environment is not possible. Vamban 4, variety with high stability can be used in hybridisation programmes as a parent to transfer stable nature to high yielding varieties.

Author Biographies

Jiji Joseph, College Of Horticulture, Kerala Agricultural University
Associate Professor, Plant Breeding and Genetics
Rose Mary Francies, College of Horticulture, Kerala Agricultural University, Vellanikkara
Associate Professor, Seed Technology Unit
A.V. Santhoshkumar, College of Forestry, Kerala Agricultural University, Vellanikkara
Associate Professor & Head, Department of Tree Physiology & Breeding
K.M. Sunil, College of Horticulture, Kerala Agricultural University, Vellanikkara
Assistant Professor, ACCER, College of Horticulture
E.M. Dayalakshmi, College of Horticulture, Kerala Agricultural University, Vellanikkara
SRF, Cocoa Research Centre, COllege of Horticulture
Published
19-02-2016
Section
Research Article