Author/Authors :
kaymak, haluk çağlar atatürk üniversitesi - ziraat fakültesi - bahçe bitkileri bölümü, ERZURUM, Turkey
Abstract :
The objective of this research was to determine the effect of juglon (5-hydroxy-1,4-naphthalenedione) and walnut leaf extract on growth and yield of radish (Raphanus sativus L.) during 2008-2009. In this study, two radish cultivar (Raphanus sativus L. cvs. ‘Beyaz and Siyah’) were used as plant material and juglone (5-hydroxy-1,4-naphthalenedione) and leaf walnut extract were tested. Leaf number, root length, diameter and weight, dry matter content of roots and yield were investigated. It was determined that walnut leaf extract and juglone affected negatively all examined parameters in radish. Moreover, cv. Beyaz was less impressed than cv. Siyah from juglone and walnut leaf extract in other parameters except for dry matter content of root and the leaf number. While the highest values were determined in cvs. Beyaz and Siyah in control in both experiment years, the lowest leaf number in cv. Beyaz in juglone in 2009, the lowest root length (6.6 cm) and diameter (5.9 cm) in walnut leaf extract in 2009, the lowest root weight (193.7 g) and yield (4.6 kg/plot) were determined in cv. Siyah in juglone in 2008. According to the results of this research, it can be said that both juglone (5-hydroxy-1,4-naphthalenedione) and walnut leaf extract have negative effect on yield and growth of radish.
NaturalLanguageKeyword :
walnut leaf extract , juglone , radish , yield
