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PAFMelb36 starts with ... Regarding avocados: as I understand it these fall into two types. Some varieties are type A and other varieties are type B, referring to their opposite diurnal flowering cycles. Please explain why pollination of a type B by a type A (or vice versa) produces a fruit that is true to type, (either the A variety or B, but presumably always same variety) There seems to be no information as to whether the resultant fruit is type A or B) and why it is not a hybrid of the two parent varieties. I have never seen it discussed, but is it correct to say the fruit will always be the same as its female progenitor, but the seed within the fruit will be a hybrid? Or is the real story different? | About the Author PAFMelb36 Warrandyte 20th January 2020 4:26pm #UserID: 21493 Posts: 1 View All PAFMelb36's Edible Fruit Trees |
Manfred says... The seed carries the genetics of both parents. The fruit is produced entirely by the mother. The fruit need not even carry a seed. It can be complicated, species by species, but for avocados that is all you need to work with. When someone here refers to a seedling Hass they don't really know what it is, but the fruit was on a Hass. It could end up either A or B. To make matters worse for this case, in some orchards in WA Hass are treated as self-fertile. The first sentence of your final paragraph succinctly states the situation, but we don't usually use the term "hybrid" in the first instance because genetics allows for similarity as well as difference. | About the Author Manfred Wamboin 21st January 2020 2:19pm #UserID: 9565 Posts: 243 View All Manfred's Edible Fruit Trees |
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| About the Author Marmot1 CASULA,2170,NSW 24th January 2020 10:23am #UserID: 20667 Posts: 102 View All Marmot1's Edible Fruit Trees |
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