Evaluation of Yield and its Associated Traits in Some Grain Sorghum Genotypes under Water Stress Conditions | ||||
| Assiut Journal of Agricultural Sciences | ||||
| Volume 55, Issue 2, April 2024, Page 1-14 PDF (534.38 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajas.2024.264933.1329 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Eatemad M. Hussein  ; Marwa A. Abd El-Mawgoud
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| Department of Grain Sorghum Research, Field Crops Research Institute, Agriculture Research Center, Giza, Egypt | ||||
| Abstract | ||||
| Response of 20 genotypes of sorghum to both full irrigation (100% ET) and deficit irrigation (60% ET) which were evaluated to identify water stress effects on yield and its attributes. The field experiments were conducted in Assiut Research Station, Assiut Governorate, Egypt, during 2021 and 2022 growing seasons. Two experiments were practiced separately under normal irrigation and water stress conditions. The combined analysis of variance for 20 genotypes across two years under two locations (normal (100% ET) and stress (60% ET) revealed highly significant differences among genotypes for all studied traits. Moreover, the genotypes × irrigation interaction variance was also highly significant or significant for all the studied traits except for panicle length. The highest means value for 1000-kernel weight across two years under two treatments (27.33 g) was given by EXO-27 genotype and for grain yield (24.20 ard. /fed.) by EXO-27. Ten and twelve of genotypes in 2021 and 2022 respectively, gave drought susceptibility indexes less than one, indicating less susceptibility. Under stress a positive and highly significant correlation was found between number of green leaves plant-1 and each of panicle width and panicle length (0.612, 0.427, respectively). On the other hand, there are negative and significant correlations (-0.375) between 50% flowering and grain yield under normal irrigation. | ||||
| Keywords | ||||
| Water stress; Sorghum; Grain yield; Correlation | ||||
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