STUDY THE EFFICIENCY OF VARIOUS AMOUNTS OF SUPERABSORBENT ON YIELD AND YIELD COMPONENTS OF CHICKPEA GENOTYPES UNDER SUPPLEMENTARY IRRIGATION

摘要

In order to study the application effect of different amount of superabsorbent on yield and yield components of chickpea genotypes in supplementary irrigation levels in winter cultivation, this research carried out as split factorial in base on RCBD design with four replications in growth season of 2014-15 at agricultural research station of Khorram Abad Sarab Changaii. The main factor of supplementary irrigation was (rain-fed, supplementary irrigation in 50 flowering stage and supplementary irrigation in two stages of 50 flowering + 50 pod reviews) and sub factor was superabsorbent with 2 levels (0 and 90 kg/ha) and chickpea genotypes (Arman, Azad, Hashem, Adel and line ILC482). The results showed that triple interaction of treatments on biological yield, harvest index, number of fertilized pods /plant, number of grains and the dual interaction of research treatment was significant on grain yield, 100 seeds weight and the number of single and two seed pods/ plant. In the triple interaction of treatments, the highest biological performance to the extent of 3239 kg/ ha assigned to the supplementary irrigation in two stages of 50 flowering and 50 pod filling along with 90 kg/ ha consumption of superabsorbent and the Azad variety. In treatment combination of superabsorbent × genotypes, the highest grain weight with 51 gr and the highest grain yield with 1018 kg/ha were dedicated to the Adel variety and application of 90 kg/ ha of superabsorbent. Generally, the application of superabsorbent and supplementary irrigation has a significant increase in grain yield and yield components in studied genotypes.