Responses to the Irrigation Water Amount of Spinach Supplemented with Organic Amendment in Greenhouse Conditions

EKİNCİ M., Ors S., ŞAHİN Ü., YILDIRIM E., DURSUN A.

Communications in Soil Science and Plant Analysis, cilt.46, sa.3, ss.327-342, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 3
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1080/00103624.2014.980827
  • Dergi Adı: Communications in Soil Science and Plant Analysis
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.327-342
  • Anahtar Kelimeler: root and plant growth, Chlorophyll, stomatal conductance, electrolyte leakage, organic amendment, HUMIC ACIDS, STOMATAL CONDUCTANCE, CHLOROPHYLL CONTENT, DEFICIT IRRIGATION, MEMBRANE STABILITY, FOLIAR APPLICATION, TRITICUM-AESTIVUM, DROUGHT STRESS, PLANT-GROWTH, SOIL
  • Atatürk Üniversitesi Adresli: Evet

Özet

The effect of organic amendment applications on some agrophysiological properties of pot-grown spinach was investigated under drought stress. The I1, I2, I3, and I4 irrigation treatments received water amounts up to 100, 80, 60, and 40 percent of evaporation from a reduced pan, respectively. A liquid organic amendment was applied to spinach seeds as seed treatment at the ratios of 0.1 percent (H1) and 0.2 percent (H3). Furthermore, in the H2 and H4 treatments the amendment was foliar applied to spinach seedlings at the ratios of 0.1 percent and 0.2 percent in addition to the seed treatments, respectively. Organic amendment treatments positively affected root and leaf growth. The plants responded to water stress by lower growth. Leaf relative water content, membrane permeability, chlorophyll reading, and stomatal conductance values also indicated significant changes. These results support the view that organic amendment application increased growth. However, it could not provide a significant contribution for growth under water stress.