LEAF PHYSIOLOGICAL RESPONSES OF TOMATO PLANTS AS AFFECTED BY DIFFERENT ROOTSTOCKS UNDER SALINITY IN SOILLES CULTURE


Çakır Y. E., Ulaş F.

III. INTERNATIONAL ANKARA SCIENTIFIC STUDIES CONGRESS, Ankara, Türkiye, 1 - 02 Mart 2025, ss.6-7, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Ankara
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.6-7
  • Erciyes Üniversitesi Adresli: Evet

Özet

Salinity is the most prevalent ecological limitation that prevents plant functions, causing decline of plant growth, development and crop yield all over the world, and its threat is spreading day by day. Vegetable grafting is an efficient technology that improves the responses of crops under salinity. The goal of the present study was to evaluate plant growth, and development of tomato plants which were grafted onto different rootstocks, and to determine contribution of grafting to salinity tolerance with regarding to leaf physiological development. Scion seedlings were grafted on to different rootstock genotypes and grown in continuously aerated nutrient solution (DWC) under different salinity levels (1.0, 4.0 and 8.0 dS m-1) for six weeks. The nongrafted plants were used as control plants under both control and salinity levels. The study was arranged based on a completely randomized block design with three replications. Leaf physiological response variables such as leaf biomass, total leaf area, photosynthesis and leaf chlorophyll index (SPAD) of grafted and non-grafted tomato plants were analyzed. The results indicated that grafted and nongrafted plants were significantly (p<0.001) affected by different salt levels. Grafted plants had better growth performance than nongrafted plants under both control and saline conditions. Increasing salinity at the nutrient solution decreased leaf biomass, however, this decrease was more pronounced at nongrafted plants than grafted plants. Salinity had a significant adverse effect not only on the plant growth and development, although also on leaf physiological development such as leaf area formation and photosynthesis of both grafted and non-grafted plants. These results suggest that vegetable grafting via vigorous rootstock is an advantage technology leads to producing plants with superior attributes compared to the non-grafted ones that salinity problems occur at the tomato cultivated areas.