The art of chestnut and apple Michel Gauthier, a former colleague Professor of Computer Science, which has an excellent site on the Web devoted to the chestnut, replied to my email. Very interesting. While I do enjoy the very very rare Readers of this notebook.
"Marigoule! It always starts with this variety. ... The advantages of hybrid is vigorous because it is free of foot (produced by layering) so if something goes wrong regrowth of the neck are still Marigoule variety, fruits are large, open floor and keep well on the ground On the downside ... its female flowers are not the most receptive to pollen and as it is almost completely self-sterile, it is not always fertile if the pollen donors fail to close. As to taste its fruits are fairly arbitrary.
If you are planning to plant more better you look to Mouth Bétizac. It is a hybrid with the parent but also the European Red Mouth an old variety of Ardeche remarkable. Marigoule is born to unknown parents (one Japanese and one European), while for B B INRA parents had chosen.
And if you want to do something for the Safeguarding of the Limousin plant Marsol you then graft with the gruff Saint Yrieix or Etivaude Chateau Chervix. And then there's the fruit to the bleached way limousine.
An apple tree does not grow, it is not so much by choosing the variety that can explain. Consider different reasons .... your nurseryman sold you an apple grafted on M9 or equivalent is the rootstock orchards pros. The force is induced to have a very low fruit set fast. And if he grafted high fantasy (40 or 50 cm from the collar) it totally broke the force already low.
.... you planted too deeply, the collar should be flush to the ground.
Sinking 15 cm, the tree does not die but vegetate miserably.
..... have you brought to the surface of compost or composted manure around the base of one meter radius? Have you watered 15litres water once every 10 or 15 days?
.... Was the plant in containers? in this case the roots have a bun in the pot and do know more then going in circles. A "real" nursery sells bareroot. [...] Speaking
chestnut harvest begins. she was late 10 days but today I picked up a hundred kilograms of chestnuts. As
talkative by nature to talk about fruit, but I still armed to the keyboard there. "