Abstract
The mungbean seed production programmes are affected due to variation in
the distribution of rainfall and temperatures in different agroclimatic zones of
Madhya Pradesh, India. This limits the availability of quality seed to the farmers.
Hence an attempt was been made to study the seedling vigor and its g x e
interactions with eight mungbean genotypes grown in two seasons and four locations.
The seeds harvested from these genotypes were evaluated for the seed size,
germination (%), seedling length, seedling dry weight and vigour index (dry weight
basis). Genotypes x year interactions were significant for germination, seedling
length, seedling dry weight and vigour index by length. Differences among the
varieties were significant for seed size and seedling dry weight. Location x variety
interaction was also significant for seed size and seedling dry weight. The variation
in the expression of seed size as well as seedling vigour parameters were mainly
attributed due to variation in rainfall distribution as well as a climatic conditions
that prevailed during the pod development. Implications of these findings have been
related to quality seed production of improved varieties.