International Journal of Statistics and Applied Mathematics
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2024, Vol. 9, Special Issue 4

Character association studies in wheat (Triticum aestivum L.) under high fertility conditions


Author(s): Meera Gawde, AP Agrawal, DJ Sharma, Dinesh Pandey and NK Chaure

Abstract: The present investigation “Character association studies in Wheat (Triticum aestivum L.) under high fertility conditions” was carried out at BTC College of Agriculture and Research Station, Bilaspur (C.G.) during Rabi season of 2022-23. The study was conducted on 36 wheat genotypes and fertilizer doses 180:90:60 NPK kg/ha + Growth regulatore mix-(Chlormequat chloride (Lihocin) @ 0.2% + tebuconazole (Folicur, 430 SC) @ 0.1%) + 15 t. FYM to evaluate their quantitative traits and determine the association between seed yield and contributing characters. Various agro-morphological traits including days to heading, days to maturity, plant height (cm), number of tillers per plant, seed length, seed width, length of spike (cm) spikelets per spike, seeds per spike, test weight, biological yield per plant and seed yield per plant were recorded. In general values of genotypic correlation coefficient were higher than respective phenotypic levels. Only two characters viz., harvest index and biological yield per plant showed positive with seed yield per plant at both genotypic and phenotypic level. Test weight also had significant positive association with seed yield per plant at genotypic level. So the positive selection for test weight and biological yield can increase the seed yield under high fertility conditions. Spikelets per spike, seeds per spike and seed width showed significant negative correlation with seed yield per plant at genotypic level. Correlations of these characters are non-significant at phenotypic level. The significant negative association are unstable at two levels, needs to confirm the findings with another studies. Inter-correlation among yield attributing traits revels that days to 50% heading is significantly negatively associated with tillers per plant, indicating to isolate a early heading genotypes with high number of tillers per plant. Days to maturity and spike length did not showed any significant association with other yield attributing traits indicated that days to maturity is effected by the environmental factors. Plant heigh and tillers per plant are significantly negative correlated with seed width, suggesting the combination of high tillering and dwarf plant type with good seed width can be isolated. Number of seeds per spike will be increased with number of spikelets per spike. The negative association of spikelets per spike, seed width and seeds per spike with seed length, biological and grain yield per plant are unstable at two levels of correlation studies, needs to confirm in future studies under high fertility conditions. Correlation among seed characters viz., test weight, seed length and seed width are significant positive, indicated positive selection for any seed character improve all the seed characters. Increased biological yield per plant reduced the harvest index.

Pages: 57-59 | Views: 79 | Downloads: 1

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How to cite this article:
Meera Gawde, AP Agrawal, DJ Sharma, Dinesh Pandey, NK Chaure. Character association studies in wheat (Triticum aestivum L.) under high fertility conditions. Int J Stat Appl Math 2024;9(4S):57-59.

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