PJB-2022-239
GENETIC POTENTIAL OF CHICKPEA GENOTYPES FOR YIELD DETERMINANT TRAITS
saeedullah
Abstract
This research was carried out to check the genetic potential and pod borer resistance of chickpea genotypes at the University of Agriculture, Peshawar, during cropping season 2020-21. A set of 44 chickpea genotypes was evaluated using a randomized complete block design (RCBD) with three replications. ANOVA detected significant differences within the chickpea genotypes for all the observed traits. Genotype NKC-5-5-20 showed maximum secondary branches plant-1 (6.9) followed by K-10039 (6.8) and D-11030 (6.1). Maximum pods plant-1 (45.3) were produced by genotype K-10039 followed by D-karak-1(45.0) and D-15020 (43.9). Genotypes K-10039 and D-15020 produced maximum number of seeds pod-1 (each with 2.0). Genotype K-10039 had the highest 100-seed weight (33.9 g) followed by D-15020 (32.8 g) and D-karak-2 (30.9 g). Genotype K-10039 noted maximum seed yield (994.7 kg ha-1) followed by D-15020 (920.7 kg ha-1) and D-11030 (896.3 kg ha-1). Minimum attack of larvae was observed for genotypes K-08021 and D-NIFA-2005 (2.0 each) followed by K-10039 (2.1) and D-11030 (2.0). Genotype D15020 observed minimum pod damage percentage (9.0) followed by D-11030 (9.2) and K-10039 (9.9). High heritability was observed for pods plant-1 (0.85), 100-seed weight (0.76), seed yield (0.70), biological yield (0.69) and pod damage percentage (0.66). High genetic advance was noted for seed yield (35.73%), pod damage percentage (35.47%), biological yield (28.68%) and pods plant-1 (28.09). Seed yield displayed highly significant positive genotypic and phenotypic correlation with primary branches plant-1 (rg = 0.49**, rp = 0.45**), secondary branches plant-1 (rg = 0.64**, rp = 0.58**), pods plant-1 (rg = 0.89**, rp = 0.86**), seeds pod-1 (rg = 0.58**, rp = 0.47**), plant height (rg = 0.31*), 100-seed weight (rg = 0.0.91**, rp = 0.82**), biological yield (rg = 0.94**, rp = 0.92**) and harvest index (rg = 0.86**, rp = 0.78**). However, seed yield showed significant negative genotypic and phenotypic association with days to 90% maturity (rg = -0.43**, rp = -0.32*), larval count (rg = -0.78**, rp = -0.57**) and pod damage percentage (rg = - 0.62**, rp = -0.56**). So, pods plant-1, seeds pod-1, 100-seed weight, biological yield and harvest index could be used as selection criteria to improve chickpea yield. Based on superior performance for yield related attributed, genotypes K-10039, D-15020 and D-11030 are recommended for further evaluation.
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