Abiotic stressors like drought, salt, or temperature have a significant impact on plant development. One of the most significant global constraints on agricultural crop output, and vegetable production in particular, is drought. In most cases, yield is decreased by drought stress during vegetative or early reproductive development by lowering the quantity, size, and quality of seeds. There were one treatment i.e. water hold capacity for 7 days. A pot experiment was carried out to examine the traits of Plant height, Number of Clusters per plant, Number of flowers per clusters, Number of fruits per plant, Average fruits weight, and Yield per plant for seven tomato genotypes under drought stress conditions. Drought-stressed plants age more slowly, produce smaller canopies, and have a smaller canopy than irrigated crops. During a drought, an excess of reactive oxygen species (ROS) is created, and this ROS overproduction results in oxidative damage and, ultimately, cell death. A growth characteristic of plants under drought stress was a reduction in height. Action-666 saw the least reduction in plant height (50.6cm) whereas Cherry Tomato experienced the biggest (76cm). The yield is directly correlated with the number of flower clusters per plant, the number of flowers per cluster, and the number of fruits per plant. All morphological characteristics were shown to be deteriorating across all genotypes. However, the genotype Action-666 exhibited very little change in these parameters under conditions of induced drought stress.

Tomato, Drought, Stress, Growth, Yield and Characterization

The morphological characteristics of tomato genotypes under control and drought stress revealed substantial variance in all tomato genotypes. Different tomato genotypes demonstrated a reduction in growth characteristic, i.e. plant height, when subjected to drought stress. The least plant height decrease detected in Action-666 (50.6cm) and the largest plant height reduction observed in Cherry Tomato (76cm). The amount of flower clusters per plant, flowers per cluster, and fruits per plant are all strongly connected to output, making them economically significant characteristics. In all genotypes, all morphological features were found to be declining. However, under forced drought stress circumstances, the genotypes Action-666 demonstrated extremely low levels of decrease in these metrics.

Priyamvada Mishra, Aniruddh Yadav, Bhagyashree Paul, Rupesh Kumar and Anil Sirohi (2022). Morphological Characterization of Tomato Genotypes (Solanum lycopersicum L.) under Moisture Stress conditions. Biological Forum – An International Journal, 14(4a): 367-372.