Retardation of yellowing and abscission in cut leaves of asparagus by benzyladenine spraying under low temperature
M.S. Byun , H.J. Lee, K.W. Kim
Dept. of Horticulture, Yeungnam Univ., Daedong 214-1, Kyongsan, Kyongsan , Kyungbook, Korea, 712-749
2002
บทคัดย่อ
This study was conducted to extend vase life in cut leaves of asparagus (A. densiflorus and A. sprengeri) by inhibiting yellowing and abscission of the leaves. Spraying on leaves with 100 mg.L-1 BA once a day for three days contiously treating from initiation of experiment made it possible not only to inhibit yellowing and abscission but also to preserve pretein and chlorophyll content considerably highly. Spray treatment of benzyladenine (BA) was the most effective in preventing yellowing and abscission among three treatments of spray, and holding plus spray. Consequently, vase life of asparagus was prolonged by BA spray treatment more two-fold compared with control under temperatures 15-30 0C. Moreover, vase life was extended at 15 0C, and shortened at 30 0C. Between the two species, the vase life of A. densilflorus was longer than A. sprengeri. This result shows that BA spray treatment was significantly effective in prolonging vase life for both of species by simultaneously retarding yellowing and abscission.