SOIL Studies

SOIL Studies

2017, Vol 6, Num, 2     (Pages: 018-025)

Some Physiological Properties and Analysis of Yield Parameters of Grafted and Non-grafted Eggplants under Waterless Conditions

Sevinç KIRAN 1 ,Şebnem KUŞVURAN 2 ,Çağla Ateş 1 ,Şeküre Şebnem ELLİALTIOĞLU 3

1 Toprak Gübre ve Su Kaynakları Merkez Araştırma Enstitüsü, Ankara
2 Çankırı Karatekin Üniversitesi, Kızılırmak Meslek Yüksekokulu, Çankırı
3 Ankara Üniversitesi, Ziraat Fakültesi, Bahçe Bitkileri Bölümü, Ankara

DOI: 10.21657/topraksu.339827
Viewed: 962
 - 
Downloaded : 443

In this study; the performance of grafted and non-grafted scion/rootstock combinations of 4 eggplant scion genotypes (salt tolerant: Mardin Kiziltepe, Burdur Merkez; salt sensitive: Artvin Hopa and Kemer) and 2 rootstock varieties (Köksal-F1, Vista-306) were studied under drought conditions. Additionally, the decrease of the negative effect caused by drought conditions on grafted eggplants were analysed. The study was conducted in a glasshouse where the humidity and temperature was controlled automatically (with a temperature of 25oC and 50-55% humidity). Drought stress was applied by keeping the useable water level at 50%. During the duration of the applied drought conditions, measurements of stomatal conductance and leaf water potential (LWP) of the plants were taken every 15 days. Yield, average fruit weight, and fruit diameter measurements, were started on the 1st harvest taken on the 44th day since the drought stress application was started and was continued to be taken until the last harvest. On all the drought stress applications, a decrease was observed in both stomatal conductivity and LWP values. The yield parameters that were negatively affected during waterless conditions included fruit diameter, fruit weight, and total yield properties per plant. At the end of the 90 day drought stress application, it was determined that non-grafted plants were more negatively affected than grafted plants during drought conditions. Grafting on commercial rootstocks decreased the negative effect of drought stress on the total yield, average fruit weight, and fruit diameter properties per plant. This effect was more significant for the combination with the drought tolerant scion genotype. In conclusion, according to the rootstock used and the scion genotype, it was determined that grafting on rootstocks decreased the negative effect caused by droughts.


Keywords : Drougth, grafting, Solanum melongena, stomatal conductance, yield