كليدواژه :
chickpea , Ca , salinity , NA , K , كشاورزي , شوري , هتروتروف , نخود
چكيده لاتين :
In order to compare the desi and kabuli types of chickpea cultivars in respect of responses to salinity at heterotrophic stage, a greenhouse pot experiment was conducted in the university of Tabriz, on 1379. In this experiment, 40 seeds of Jam, Hashem (kabuli type), Pirooz and Kaka (desi type) cultivars were grown in pots containing soils with 0.9 (control), 2.6 and 4.9 dSm^-1salinity. The results revealed that at second salt level, the kabuli type cultivars possessed lower K and Ca concentrations, K/Na ratio and seedling dry weight (SDW), respectively, but higher Na concentration in the radicle and plomule, when compared with the desi type cultivars. According to SDW, the desi type cultivars showed more salt tolerance than other type, that should be more considered by breeders. In spite of high salt condition, at control, the higher concentrations of some elements in radicle and plomule could not be considered as productivity indices, because the relations of these attributes with SDW were statistically negligible. The grouping of cultivars by cluster analysis with respect to eleven attributes at higher salt intensity yielded two clusters. The first cluster consisted of the desi type cultivars and second one of the kabuli type cultivars. At control, the kabuli type cultivars, Kaka and Pirooz possessed three different clusters. Considering significant positive relation between SDW and concentration of K and Ca at high salt level, it seems that K and Ca could be used as selection indices for screening of more tolerant cultivars at seedling stage. For confirmation of these indices, heritability of these attributes should be evaluated in further studies.
