Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
Methodology
This study was carried out to assess the feasibility of introduction of cluster bean under dryland
conditions during kharif seasons for three years (2016 to 2018) at Regional Agricultural
Research Station (RARS), Vijayapura (Karnataka). The experiment was laid out in split plot
design with six spacings in main plot viz., S 1: 30×10cm, S 2: 45×10cm, S 3: 45×15cm,
S4:45×20cm, S5: 60×10cm and S6: 60×20cm and four genotypes of cluster bean viz., V1: RGC
938, V 2: RGC 1033, V 3: RGC 1038 and V 4: RGC 1066 in subplots. Recommended fertilizer
dose and cultural practices including need-based plant protection measures were followed to
raise a good crop. Observations from five randomly selected plants of each genotype in each
replication were recorded. The mean of three years values was used for statistical analysis and
they are presented.
Results
The plant height, number of pods per plant, grain yield (kg/ha), benefit cost ratio (B:C ratio)
and rain water use efficiency (RWUE) were estimated using the pooled data of three years.
Among the crop geometry tried, cluster bean sown at 30 cm×10 cm gave significantly higher
grain yield of 408 kg per ha as compared to 45 cm×15 cm (361 kg/ha), 45cm×20cm (293
kg/ha), 60cm×10cm (275 kg/ha) and 60cm×20cm (229 kg/ha). But it was on par with
45cm×10cm (401 kg/ha). The B:C ratio and RWUE was also significantly higher in above said
treatment. Whereas, pods per plant were significantly higher in less dense treatment. Among
four cluster bean genotypes, RC 1033 and RC 938 recorded significantly higher grain yield
(345 and 341 kg/ha, respectively) than other genotypes. The cost benefit ratio and rain water
use efficiency was also significantly higher in these genotypes. The genotypes RGC 938 and
RGC 1033 was significantly taller and smaller, respectively compared to other
genotypes. Number of pods per plant were significantly less in genotype RGC 1066.
Influence of spacing and genotypes on growth, yield, economics and RWUE of cluster
bean
Plant
Seed yield
RWUE
Treatment
Pods/plant
B:C ratio
height
(kg/ha)
(kg/ha-mm)
Spacing (S)
S1: 30X10cm 23.03 9.8 408 8.09 1.72
S2: 45X10cm 23.78 9.7 401 7.95 1.69
S3: 45X15cm 24.08 10.5 361 7.16 1.41
S4: 45X20cm 22.54 10.4 293 5.81 1.25
S5: 60X10cm 22.52 9.5 275 5.46 1.13
S6: 60X20cm 21.85 11.3 229 4.55 0.88
S.Em ± 0.21 0.2 8 0.15 0.04
CD(p=0.05) 0.64 0.5 23 0.47 0.12
411 | Page Managing genetic resources for enhanced stress tolerance