Author/Authors :
Jahani، Firouz نويسنده Department of Agronomy and Plant Breeding, Ardabil Branch, Islamic Azad University, Ardabil, Iran , , Yaghoobi Sagherchi، Zeynab نويسنده Department of Agronomy and Plant Breeding, Ardabil Branch, Islamic Azad University, Ardabil, Iran , , Imani، Ali Akbar نويسنده Department of Agronomy and Plant Breeding, Ardabil Branch, Islamic Azad University, Ardabil, Iran ,
Abstract :
To determine the lentil genotypes in Meshginshahr region in terms of drought tolerance and also the study of
interaction between genotype and environment, 17 lentil genotypes were grown and evaluated in both stress and nonstress
conditions as randomized complete block design in three replicates. The traits included: germination percentage,
plant height, biomass, days to flowering, days to maturity, the primary stem, the secondary stem, leaflet, fill pod,
hundred seed weight, harvest index, grain yield, single plant weight and number of seeds per plant. Simple and combined
analysis of variance for traits was performed in both stress and non-stress conditions. The reaction of different cultivars
of lentils was varied at both conditions that indicate the existence of genetic variation among genotypes, regardless of the
environment effect. Drought stress decreased all traits especially grain yield, harvest index, single plant weight and plant
height. Mean comparison of traits showed that genotype ILL-10179 had the highest yield in both under stress and nonstress
conditions. The correlation results showed that traits such as harvest index and single plant weight have a positive
effect on the yield at 1% level. Quantitative indices of resistance were calculated including arithmetic mean (MP),
geometric mean (GMP), stress tolerance index (STI), stress susceptibility indicators (SSI) and tolerance (TOL). There
was significant difference between genotypes in terms all drought resistance indices. The results of this study indicate
that characteristics such as height, biomass, days to flowering, number of leaflet, hundred seed weight, harvest index,
number of seeds per plant and seed weight of per plant can be introduced as indicators to select in order to improve the
yield of lentil seed under stress condition and traits such as plant height, leaflet, hundred seed weight, harvest index and
single plant weight can be introduced under non stress condition. So, among the studied lines, line ILL-10179 were
recommended for dry land conditions and lines ILL- 10179 and Local susceptible- 13 for water conditions for
Meshginshahr region and also the similar regions.
