Impact of Climate Change on Water Requirements and The Productivity on Potato Crop

Abstract

el-Khaimah, Qalyubiah Governorate. The aim of the current investigation was to study the impact of three planting dates (18-Dec, 7-Jan and 27-Jan), three irrigation levels at 60, 80 and 100% of irrigation water requirements (IR) and their interaction on potato crop productivity. 9 treatments were obtained by combination of different planting dates and irrigation levels.Planting dates were arranged as the main plots, while, irrigation levels were arranged in the sub plots, The obtained results indicated that the highest tuber yield was obtained by the first planting date (18 Dec.) during both studied seasons, While, The highest plant growth parameters and tuber yield per plant were obtained by 100% followed by 80% irrigation level during both seasons. However, the interaction effectindicated that first planting date (18-Dec) combined with 100 % irrigation level gave the highest potato tuber productivity than the other treatments, whereas the interaction of first planting date 18-(Dec) combined with 80% irrigation level gave the best for water use efficiency compared to the other treatments during both tested seasons.

Growth, Chlorophyll, Yield and Tubers Chemical Composition, and Quality Characters of Potato Cv. Spunta as Affected by Planting Dates and Irrigation Regimes

“…Moreover, the potato tubers yield was found to be the most responsive trait to these treatments that were evident in the average percentage increase, which was estimated by 35.44% under PD1 treatment and by 42.33% under IR100% treatment when compared with corresponded mean values of PD3 and IR50%, as an average of both seasons of study. The results of this context are in agreement with the results of Thongam et al (2017); Patel et al (2018) and Meligy et al (2020). Moreover, Fabeiro et al (2001) published that in semi-arid climates, the different potato attributes are significantly responded to the amount of irrigation water.…”

“…Under the climatic conditions of this experiment, the irrigation requirements of potato must not be decreased the at all planting dates because the rainfall in this period cannot reinforce the irrigation regime of potato plants with considerable quantities of water which supposed to complete with irrigation (Table 1). Moreover, the obtained experiment results came to the harmony with those of Maralian et al (2017); Mansour and Abu El-Fotoh (2018); Ali et al (2019) and Meligy et al (2020) who showed that that the 100% of irrigation requirements gave the highest mean values of plant growth and chlorophyll content.…”

“…These findings refer to that the planting date significantly affected the growth parameters of potato plants and the planting date of 1 st December (PD1) is the most suitable planting date more than the ordinary planting date of 15 th December (PD2). Many other researchers stated the effect of planting dates on growth attributes (Thongam et al, 2017;Mansour and Abu El-Fotoh, 2018;Patel et al, 2018;Meligy et al, 2020). However, the exact planting date is strongly related to the geographical location.…”

The Dependence of Crop Potatoes on the Level of Irrigation under Polish Conditions

“…According to Buckley et al [1] and Meligy et al [33], due to the rising production costs and quality requirements as to the potato tubers, it is reasonable to implement GPS precision irrigation technology (precision water management). This technology involves the optimization of plant irrigation considering the variability of conditions in different parts of the field.…”

Effect of Supplemental Irrigation on Tuber Yield, Water Use Efficiency and Nitrogen Use Efficiency of Potato (Solanum Tuberosum L.) Grown in a Mollic Andosol

“…This was due to the variation of rainfall patterns in the growing season (low and erratic rainfall with high temperatures) with a consequence of increasing crop evapotranspiration (Muthoni et al, 2017). Previous studies reported that the total seasonal potato ETa varied from 350 to 800 mm for various climates and environment (Ati et al, 2010;Ati et al, 2012;Paredes et al, 2018;Nowacki, 2018;Ierna and Mauromicale, 2018;Adavi et al, 2018;Afzaal et al, 2020;Meligy et al, 2020;Djaman et al, 2021).…”