Abstract
The present experiment was carried out at the experimental area, University of Agriculture, Peshawar, Pakistan during the growing season of 2013-14. The current research work was planned to evaluate the genetic potential and traits association in 20 Desi and Kabuli chickpea genotypes (10 Desi and 10 Kabuli). The genetic materials were grown in a randomized complete block design (RCBD) with three replications. Data were collected on plant height (cm), secondary branches plant -1 , pods plant -1 , seed yield (kg ha -1 ), biological yield plot -1 and harvest index. Genotypes revealed significant differences for most of the traits which ranged from 63.66 to 105.28 cm for plant height, 8 to 18 for secondary branches plant -1 , 43 to 64 for pods plant -1 , 862 to 2481 kg for seed yield (kg ha -1 ), 1383 to 3576 g for biological yield plot -1 and 20 to 39% for harvest index. Mean squares showed highly significant differences (P≤0.05) for comparative performance of Kabuli and Desi genotypes. Mean value for seed yield (kg ha -1 ) of Kabuli genotypes was 1210.10 kg, which was comparatively less than mean value of Desi genotypes which was 1823.90 kg. Among Kabuli genotypes, analysis of variance (P≤0.05) showed significant differences for most of the traits. Genotype NKC-5-S14 showed minimum (861.60 kg ha -1 ) seed yield while maximum (1589.30 kg ha -1 ) seed yield was recorded for NKC-5-S16. Mean squares in Desi genotypes also revealed significant differences (P≤0.05) for most of the traits. Maximum (2481.3 kg ha -1 ) seed yield was given by genotype NIFA-2005, while minimum (1002.90 kg ha -1 ) seed yield was recorded for genotype SL-3-29. Broad sense heritability estimates for yield and yield components were moderate to high that ranged from 54% to 92%. Positively and highly significant association of seed yield was observed with biological yield plot -1 (r = 0.85**) and harvest index (r = 0.42**), while significantly negative correlation was observed with 100-seed weight (r = -0.26*). Biological yield plot -1 , harvest index would be the proper choice criteria for better seed yield in chickpea. Results showed that genotypes NIFA-2005, NDC-4-20-5, SL-3-64, NDC-4-20-4 and NKC5-S16 performed better and could be utilized as a part of future breeding projects for the improvement of high yielding cultivars.
Highlights
Statistical analysis The information recorded on every parameter was subjected to analysis of variance (ANOVA) procedure suitable for a randomized complete block design through MSTATC PC program
The mean contrasts among chickpea genotypes for distinctive morphological and yield characteristics were measured by applying least significant differences (LSD) test at 5% level of likelihood as proposed by [6]
Positive and highly significant and non-significant correlation with plant height (r = 0.24 ns) and biological yield plot-1 (r = 0.07 ns), while negative and nonsignificant association of this trait was found with seed yield (r = -0.12 ns)
Summary
In Desi chickpea, the regular seed types include different shades and blends of cocoa, yellow, green and dark. Materials and methods The experiment on genetic potential and traits association in Desi and Kabuli chickpea genotypes was conducted at the experimental area, University of Agriculture, Peshawar during growing season 2013-14. The experimental material comprises of 10 Desi and 10 Kabuli chickpea genotypes, which were evaluated in the field environments in a randomized complete block design with three replications. (63.66 cm) followed by NKC-10-99 (76.66 mean squares presented highly significant cm), while genotype NKC-5-S15 recorded (p≤0.01) variances for this trait. (p≤0.01) variances for comparative differences were observed for plant height. Minimum plant height was recorded for chickpea genotypes (Table 1). Similar genotype SL-3-29 (63.66 cm) and maximum results in comparative performance between height was recorded for NDC-4-20-2 (SBP-1), Pods plant-1 (PPP-1), Seed yield kg ha-1, SY(kg ha-1)), Biological yield plot-1 (BYP-1)
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