Knowledge of genetic diversity is crucial to assess the variability of genotypes and their potential use in crop improvement program. The present experiment was conducted at Horticultur Research Station (HRS), Dailekh (1300 masl) for three years during 2016-2018 to study the agro-morphological variability and performance of six genotypes of French bean (Phaseolus vulgaris L.) for pod and seed yield. The genotypes viz; Bhatte, Chaumase, Dhankute Chirrke, WP Con Bean, White OP and Trishuli were experimented in Randomized Completely Block (RCB) design with four replications. Observations were recorded on 14 qualitative and 12 quantitative traits. Among the qualitative traits, French bean genotypes observed variability w.r.t. stem pigmentation, leaf color, leaflet shape, stem hairyness, flower color, pod color, pod shape, pod cross section, pod beak position, pod appearance, seed size, seed shape and seed color. Analysis of variance for quantitative traits showed significant differences among all the genotypes for all the characters studied. Three year mean results showed the genotype Chaumase (35.0 t/ha) followed by Trishuli (28.0 t/ha), WP Con Bean (24.6 t/ha) and White OP (22.9 t/ha) recorded the maximum green pod yield. Similarly, genotypes Chaumase (2.1 t/ha), Trishuli (2.1 t/ha), Dhankute Chirrke (1.44 t/ha) and White OP (1.09 t/ha) were found promising for seed production purpose. The agro-morphological variation observed in growth and pod characters could be utilized in variety improvement programs. Future research work needed to be focused on the further evaluation of these genotypes under different production system for yield and seed production and to identify traits useful for crop improvement.
Understanding the phenotypic variation and association between the grain yield, and other agronomic traits in French bean genotypes is important for its varietal improvement program. Field experiments were conducted during 2018 and 2019 cropping season at Horticulture Research Station, Dailekh, Karnali Province of Nepal to evaluate pole-type French bean genotypes for plant morphological characters, yield and the association between the agronomic traits. Twelve (Bhatte, Chaumase, Dhankute Chhirke, WP Con Bean, White OP, Dhundi Raj, LB-31, LB-37, LB-39, Madhav, Chinese Long, and Trishuli) pole-type French bean genotypes were laid out in a randomized complete block design (RCBD) with three replications. Pole-type French bean genotypes showed the significant variation for plant morphological traits and grain yield. Genotype LB-31 exhibited significantly the highest pod number (78.0/plant), green pod weight (675.0 g/plant), green pod yield (36.1 t/ha), and dry grain yield (2.4 t/ha). Following LB-31 genotype, genotype Chaumase and LB-39 produced the highest green pod yield (31.3 t/ha and 31.2 t/ha, respectively). The number of clusters per plant, pod number per plant and green pod weight per plant exhibited the significant positive correlation with green pod and dry grain yield. Hence, these traits can be selected to improve the yield potential of pole-type French bean genotypes. Pole type French bean genotypes used in the experiment were well adapted to the study area. Therefore, the high yielding genotypes viz LB-31, Chaumase and LB-39 could be recommended to use as seed source for on-farm production in Mid-Western Nepal.
To investigate the effectiveness of different Storage conditions and Sanitizer treatments on the postharvest performance of the fruits of Sweet pepper var. California Wonder, an experiment was laid out in two factorial Randomized Complete Block Design (RCBD) with three replications. Fruits subjected to Sanitizer treatments viz Sodium hypochlorite @ 0.02%, Calcinated calcium @ 0.1%, Neem extract @10%, Aloe vera @10% and Control were stored under Evaporative Cooling (EC) and Ambient conditions. Observations were recorded for Physiological loss in weight (PLW), Total soluble solid (TSS), Titratable acidity (TA), Vitamin C, Spoilage percentage and Shelf life of the fruits. At the end of the shelf life, the main effects of Storage conditions and Sanitizers were found significant for PLW, Spoilage percentage, TSS, Vitamin C and Shelf life. The lowest PLW (13.19%) was observed in the fruits stored in EC condition compared to the fruits kept in Ambient storage (21.61%). EC storage showed the lowest Spoilage percentage (41.1%), the longest Shelf life (13.8 days), the highest TSS (3.16°Brix) and Vitamin C (53.7 mg/100g). Among the Sanitizers, the lowest PLW (14.69%) and Spoilage percentage (37.5%) were recorded in the treatment of Sodium hypochlorite followed by Aloe vera solution. Likewise, the highest TSS (3.63°Brix), Vitamin C (52.8 mg/100 g) and the longest Shelf life (13.33 days) were recorded under the treatment of Aloe vera solution. The treatment combination of EC storage and Sodium hypochlorite exhibited the lowest PLW on 9th day (11.05%) of storage. The results suggest that the postharvest quality and shelf life of sweet pepper can be extended by storing the sweet pepper fruits in energy efficient EC storage after the application of Sanitizers viz. Sodium hypochlorite and Aloe vera.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.