Tomatoes collagen, a protein that gives structures to bones,

(Lycopersicon esculentum) are one of the most important vegetables and
greenhouse products under cultivation in the world. They belong to the genus Lycopersicon
and the species esculentum is especially popular for use as fruit or
vegetable (Kumar et al., 2016). The
tomato (Lycopersicon esculentum) is a
major vegetable crop, and grown practically in every country of the world.
Tomato, are very healthy as they are a good source of vitamins A, C and folic
acid. Vitamin A is important for bone growth. Vitamin C is important in forming
collagen, a protein that gives structures to bones, cartilage, muscle and blood
vessels. It also helps maintain capillaries, bones and teeth and aids in the
absorption of iron. Tomatoes contain a wide array of beneficial nutrients and antioxidants,
including alpha-lipoic acid, lycopene, choline, folic acid, beta-carotene and
lutein. Stress is considered as a change in any environmental
factor that has an impact on the plant by affecting its biochemical and
physiological response to such changes, and may on occasions lead to damage or
injury (Kumar et al., 2016). Salinity
is one of the major abiotic stresses in arid and semi-arid regions that
substantially reduce the yield of major crops by more than 50% (Bray, 2000). This
stress affects 7% of the world’s land area for around 930 million ha (Munns,
2002). Currently, high soil salinity affected the agricultural production in a
large proportion worldwide (Bybordi et
al., 2010). Under drought stress condition, plant accumulates osmolytes
such as proline act as osmoprotectant (Kumar et al., 2011; Jamwal et al.,
2012). Abiotic
stress is defined as the negative impact of non-living factors on the living
organisms in a specific environment. These factors or stressors are naturally
occurring, often intangible factors such as intense sunlight or wind, drought,
salinity (Kaymakanova, 2009).