Studies on certain endogenous constituents of shoots in relation to flowering in mango. II. Changes in dry matter, total carbohydrates, total nitrogen and C:N ratio.
Veera S., Rao V. N. M.
Author Affiliation: Tamil Nadu Agricultural University, Coimbatore, India.
Orissa Journal of Horticulture 5 : 24-34
Abstract : Two-year studies were carried out on 20-year-old trees of the regularly bearing cvs Neelum and Banglora and the irregularly bearing cvs Mulgoa and Banganapalle. In all cvs shoot dry matter content gradually increased from April onwards, peaking at about the time of flower bud formation (September-November). Shoot total carbohydrate content also peaked at the time of flower bud formation. Leaf and shoot total N contents varied among the cvs and no correlation with flower bud formation was noted in either of the 2 years. However, shoot N content was slightly higher in the on year. The C/N ratio in shoots peaked at different times in different cvs and no correlation with flower bud formation was observed. Also, no correlation between the C/N ratio and the intensity of flowering was noted. The data are tabulated.