Drought constrains wheat productivity, making the identification of genetically variable and yield-associated traits important for selection under contrasting moisture regimes. This study evaluated 50 advanced bread wheat genotypes, including five standard checks, under rainfed and irrigated environments during the Rabi season of 2022–23 using a randomised block design with three replications. Two physiological and fourteen yield-related morphological traits were assessed using analysis of variance, phenotypic and genotypic coefficients of variation, broad-sense heritability, genetic advance, correlation, and path coefficient analyses. The phenotypic coefficient of variation exceeded the genotypic coefficient of variation for all traits in both environments. Canopy temperature depression at 14 days after heading (CTD 2) showed the highest PCV/GCV values, at 39.90/33.42% under rainfed and 34.26/29.45% under irrigated conditions. Productive tillers per plant and CTD 2 combined high heritability with comparatively large genetic advance in both environments. Under rainfed conditions, grain yield per plot was strongly and positively correlated with harvest index (r = 0.721), productive tillers per plant (r = 0.698), and biological yield per plot (r = 0.626). Under irrigation, the strongest positive associations were with peduncle length (r = 0.611), spike length (r = 0.606), flag leaf length (r = 0.563), and biological yield per plot (r = 0.552). Path analysis identified harvest index as the largest positive direct contributor under rainfed conditions (0.8029) and biological yield per plot under irrigated conditions (0.8620). These findings support consideration of these traits in selection across contrasting moisture regimes.
Lovneesh Choudhary, M. Dalal, Vikram Singh et al.· International Journal of Pla...· 0 citations
BACKGROUND First-year nursing students may encounter difficulties while adapting to academic requirements, hostel living, separation from family, clinical responsibilities, and changes in their social environment. These challenges can influence their physical, psychological, social, spiritual, and academic well-being. AIM To assess adjustment problems and coping strategies among students in selected nursing colleges of District Mandi, Himachal Pradesh, and to determine the relationship between adjustment problems and coping strategies. METHODOLOGY A quantitative approach with a descriptive research design was adopted. The study involved 300 first-year B.Sc. Nursing and GNM students selected through non-probability purposive sampling. Data were collected using a self-structured checklist for adjustment problems and a five-point Likert scale for coping strategies. Frequency, percentage, mean, standard deviation, Chi-square test, and Pearson’s correlation coefficient were used for data analysis. RESULTS The findings showed that 206 (68.7%) students had moderate adjustment problems, 94 (31.3%) had mild adjustment problems, and none had severe adjustment problems. Regarding coping strategies, 220 (73.33%) students demonstrated average coping, 43 (14.33%) demonstrated poor coping, and 37 (12.33%) demonstrated good coping. The mean adjustment problem score was 11.06 ± 2.88, while the mean coping strategy score was 72.58 ± 13.64. A strong positive correlation was observed between adjustment problems and coping strategies (r = 0.724, p < 0.001). Significant associations were found between adjustment problems and age, father’s occupation, and mother’s occupation (p < 0.05). CONCLUSION The study concluded that first-year nursing students commonly experienced moderate adjustment problems and generally used average coping strategies. Early identification of adjustment difficulties and supportive measures such as orientation, counseling, and guidance may help promote students’ well-being and academic functioning.
Meenakshi, S. Pathania, Priyanka Sharma et al.· International Journal of Sci...· 0 citations
Tomato (Solanum lycopersicum L.) is an important vegetable crop valued for its nutritional quality, wide adaptability and economic significance. The present study was conducted to evaluate genetic variability, character association and genetic diversity among tomato accessions for yield and its contributing traits. The experiment was carried out during the spring-summer season of 2020 and 2021 at the experimental field of horticulture, School of Agriculture, Lovely Professional University. A total of 26 tomato accessions, comprising 6 repatriated genotypes and 20 hybrids developed through a full diallel mating design, were evaluated in a randomised complete block design (RCBD) with 3 replications and 15 quantitative and quality-related characters. Significant variation was found among the different germplasms for all characters. Yield and yield contributing characters showed high heritability along with genetic gain, indicating major role of these characters in expression of these characters. Yield per plant exhibited a strong and positive relationship with number of fruits per plant, fruit width, fruit length and mean fruit weight. Path coefficient analysis indicated that the number of fruits per plant and reducing sugar content exerted the highest positive direct influence on yield. Principal component analysis explained 81.70 % of the total variation through five components. Cluster analysis grouped accessions into two major clusters irrespective of geographic origin, indicating wide genetic diversity. Accessions T10 and F1022 were identified as the most divergent and may serve as promising parents for yield improvement in tomato breeding programs.
S. Vinit, K. Khushboo, T. Nikhil et al.· Plant Science Today· 0 citations
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