Effects of different N-sources on growth, nutritional status, chlorophyll content, and photosynthetic parameters of shoots of the apple rootstock MM 106 cultured in vitro
Sotiropoulos, T.E.(Pomology Inst., Naoussa (Greece))E-mail:thosotir@alfanet.gr | Mouhtaridou, G.N.(Pomology Inst., Naoussa (Greece)) | Thomidis, T.(Pomology Inst., Naoussa (Greece)) | Tsirakoglou, V.(Aristotle Univ. of Thessaloniki (Greece). Lab. of Pomology) | Dimassi, K.N.(Aristotle Univ. of Thessaloniki (Greece). Lab. of Pomology) | Therios, I.N.(Aristotle Univ. of Thessaloniki (Greece). Lab. of Pomology)
The effects of five different N-sources (KNO3 + NH4NO3 = control, KNO3, NH4NO3, NH4H2PO4, L-alanine) on growth, nutritional status, chlorophyll (Chl) content, and photosynthetic parameters of the apple rootstock MM 106 shoots cultured in vitro were investigated. In comparison with all the other treatments, control explants grown on a MS medium containing KNO3 + NH4NO3 had the highest fresh mass, Chl content, net photosynthetic rate, transpiration rate, and stomatal conductance.
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