Статья

Evaluation of Drought Tolerance of Some Wheat (Triticum aestivum L.) Genotypes through Phenology, Growth, and Physiological Indices

M. Kaium ChowdhuryM. A. HasanDepartment of Crop Physiology & Ecology, Hajee Mohammad Danesh Science and Technology University, Basherhat 5200, BangladeshMM BahadurDepartment of Crop Physiology & Ecology, Hajee Mohammad Danesh Science and Technology University, Basherhat 5200, BangladeshMR IslamAgronomy Division, Regional Agricultural Research Station, Bangladesh Agricultural Research Institute, Pabna 6600, BangladeshMd. Abdul HakimDepartment of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, BangladeshMuhammad Aamir IqbalDepartment of Agronomy, Faculty of Agriculture, University of Poonch Rawalakot, Rawalakot 12350, PakistanTalha JavedCollege of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaAli RazaFujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Oil Crops Research Institute, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou 350002, ChinaRubab ShabbirCollege of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaSobhy SorourDepartment of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Shaikh 33516, EgyptNorhan E. M. ElsanafawyDepartment of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Shaikh 33516, EgyptSultana AnwarDepartment of Agronomy, University of Florida, Gainesville, FL 32601, USASaud AlamriDepartment of Botany and Microbiology, College of Science, King Saud University, Riyadh 12211, Saudi ArabiaAyman El SabaghDepartment of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Shaikh 33516, EgyptMohammad Sohidul IslamDepartment of Agronomy, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh

2021en

ABI

Аннотация

Increasing human population and changing climate, which have given rise to frequent drought spells, pose a serious threat to global food security, while identification of high yielding drought tolerant genotypes remains a proficient approach to cope with these challenges. To offer a methodology for the evaluation of the drought-tolerant wheat genotypes based on the pheno-physiological traits, a field experiment was executed, entailing four wheat genotypes viz. BARI Gom 26, BAW 1158, BAW 1167, and BAW 1169 and two water conditions viz. control treatment (three times irrigation at 20, 50, and 70 DAS, i.e., 100% field capacity) and stressed treatment (no irrigation during the entire growing season). The results revealed that drought stress drastically reduced the days to booting, heading, anthesis and physiological maturity, relative water content (RWC), chlorophyll content, canopy temperature depression (CTD), and photo-assimilates-spike dry matter (SDM), grains spike−1 and grain yield of all wheat genotypes. In addition, the genotypes BAW 1167 and BARI Gom 26 remained more prone to adverse effects of drought as compared to BAW 1169 and BAW 1158. Furthermore, DS induced biosynthesis of compatible solutes such as proline, especially in BAW 1169, which enabled plants to defend against oxidative stress. It was inferred that BAW 1169 remained superior by exhibiting the best adaptation as indicated by the maximum relative values of RWC, total chlorophyll, CTD, proline content, SDM, grains spike−1, and grain yield of wheat. Thus, based on our findings, BAW 1169 may be recommended for general adoption and utilization in future wheat breeding programs aimed at developing potent drought-tolerant wheat genotypes to ensure food security on a sustainable basis.

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Идентификаторы

DOI: 10.3390/agronomy11091792

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Цитирований: 2Использованных источников: 0

Показатели — AkademScholar