Turkish Journal of Field Crops

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2. Beyler İş Hanı, No: 313 Kat: 3 Konak-İzmir

AGRO-MANAGEMENT PRACTICES FOR SUSTAINABLE WHEAT PRODUCTION UNDER SCARCE WATER CONDITION OF ARID CLIMATE

Hakoomat Ali, Nadeem Iqbal, Ahmad Naeem Shahzad, Shakeel Ahmad, Zahid Mehmood Khan, Naeem Sarwar

Abstract

Irrigation water is vital and most limiting input in arid agriculture. This study evaluates the late sown wheat crop under various agro-management practices for enhancing the crop productivity in water scarce area. Results exhibited that better leaf water relations expressed in terms of an improvement in the leaf water potential, leaf osmotic potential, stomatal conductance and relative water content of flag leaf as well as higher rates of transpiration and net CO2 assimilation were recorded with the planting technique of seed spreading augmented with furrows. This planting technique also expressed higher number of productive tillers, 1000- grain weight and grain yield whereas lower soil penetration resistance as compared to other planting treatments. The highest water use efficiency (WUE) was achieved with the irrigation regime of 80% (evapotranspiration) ETo while in case of planting techniques, seed spreading augmented with furrows expressed the maximum values of WUE. The highest grain yield was recorded with flat sowing subjected to the irrigation equivalent to 100% reference evapotranspiration (100% ETo) which was almost similar with seed spreading augmented with furrows at 80% ETo. Under deficit irrigation regimes (80 and 60% ETo), seed spreading augmented with furrows performed better than the other two planting techniques.

Keyword: Planting techniques, grain yield, irrigation, water use efficiency and wheat ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.
Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding