Is there a specific reason or technique to get seedless mango or mango with undeveloped seed?
We have one seedling mango at home, that had been growing since 1998-99, but never fruited. The trunk diameter is not less than 15 inches.
Finally i was thinking to trim all it's branches and to graft different varieties on newly developed branches. But before i do that, last year i thought of trying to induce flowering.
I sprayed (in December)some branches that were within reach, with potassium nitrate (Multinitrate 13-00-45
http://www.mahafeedwsf.net/npk-foliar-spray-fertilizers.html ) twice at the interval of 1 week.
Few weeks later it bloomed and set some fruits. Around 20 fruits developed until maturity / ripe - and they dropped by itself, even with green skin (in May). Those fruits were not huge, but around 200 grams and the taste was very nice. Interestingly, the seed was very thin, in fact, there was no real seed inside the husk, for all of them.
So, the question is: was the seed remained undeveloped since the tree was forced to bloom artificially or is it safe for me to declare "I have developed another of seedless mango variety :-)"
This year, i did the same, sprayed the whole tree with the same, but unfortunately got no flowers at all. So, i already trimmed the top branches to prepare them for grafting and left the lower branches as it is just to see if it flowers next year and gets the same, so called seedless fruit.