Overcoming the Self-incompatibility of Raphanus sativus by Application of Amino Acids, Vitamines and Phytohormones

Abstract

Overcoming self-incompatibility of Raphanus sativus cultivars. ‘Motohashi-taibyo Minowase’(M-Mino) and ‘Minowase’(Mino) was studied by application of 15 different kinds of amino acids, two kinds of vitamines, four kinds of phytohormones and three kinds of phenolic substances. Effects differed between the two cultivars. In “M-Mino”, arginine (100mg/l), serine and tyrosine (500mg/l), alanine, valine and cystine (1000mg/l), leucine (100 and 1000mg/l), lysine, threonine and phenylalanine (500 and 1000mg/l) were significantly effective. On the other hand, in “Mino”, arginine and leucine (200mg/l) and histidine (1000mg/l) were significantly effective. Phytohormones and vitamines tended to increase some fruit development and setting, although rate of them were not statistically significant. Besides, these chemicals induced some parthenocarpic fruits.