Response of Potato Cultivars to Nano-Fertilization Under Water Stress at Different Growth Stages

Abstract

Abstract The experiment was conducted in the field of the Plant Production Techniques Department at the Technical College of Musayyib for autumn season of 2020. The experiment had three factors. First, four cultivars—Burren, Sifra, Arizona, Royal—were used (C1, C2, C3, C4). The second factor has four levels of water stress: no water stress, water stress during the germination stage from the date of planting to 30 days after planting, water stress during the vegetative growth stage from the end of the germination stage to 45 days after planting, and water stress during tuber formation from 45 to 60 days after planting. The third work sprayed three levels of nano fertilizer (khazra) (0, 1, 2) g. L-1 and its symbol (S0, S1, S2) according to the RCBD (Randomized complete block design) with three replicates and random transactions within each replicate. The probability-based Least Significant Difference (L.S.D) test assessed the results. 5%. The Burren cultivars had the highest plant height 57.70 cm and leaf number 48.00 leaves. Plant-1: leaf area 4389.90 cm2, fresh weight 312.67 g, dry weight 35.25. Stress during tuber formation (W3) and vegetative growth (W2) reduced most features in the first trial. The stress-free treatment (W0) had the highest vegetative growth, tuber, and chemical characteristics. Nano-fertilizer spraying at 2 g had a substantial effect.L-1 had the highest plant height 55.44 cm and leaf number 47.71 leaves. plant-1, leaf area 4329.72 cm2. Plant weight: 310.09 g, 35.87 g dry.