【文章內(nèi)容簡介】 ptan + Malathion ? Earliest of stone fruit (and all fruits to bloom) ? In Kansas, most seasons blooms are caught by a late freeze (perhaps 12 years in 5 may get a crop) ? Avoid frost sensitive areas ? Nearly all varieties are selffruitful (don?t need a pollenizer) ? Prunus armeniaca ? Native of China, came to Europe via Armenia. ? ?abricock? or ?apricock? early English adaptation of a Latin word ?early ripening fruit? ? Most mercial production in Mediterranean area and China Parideaza Farm 2022 Tree is larger than peach tree. Trees take 56 years to bee productive (a year or 2 longer than peach). Long lived tree may last 2540 years. Most in US grown in California (94% of crop). ? Bears on 1year old wood but tree also produces some short spurs. ? Pruning is less than peaches ? Less emphasis on encouraging vigorous shoots ? Fruits are usually thinned to produce larger sizes of fruit hand thinned with ‘bats’ to knock excess fruit from branches ? Want one fruit every 2 inches ? Thinning usually done 3040 days after full bloom Peach Prunus persica Prunus genus contains a large number of edible fruits including: apricots, almonds, cherries, and plums. Native of China (not middle east as the species ‘persica’ might suggest. Came to Europe via Persia (Iran) A nectarine is a fuzzless peach note red coloration into flesh and pit. A single recessive gene controls fuzziness. Fruit develop along stem not on spurs. Thick, fat buds are flower buds while long, slender buds are leaf buds. There may be 2 or more flower buds set at each node along with leaf buds. 0 10 20 301234567Bud StageoF90% k i l l10% k i l lPetal Fall Full Pink Open First Pink Calyx pink Calyx green First swell Pale pink of a peach orchard in full bloom. Bloom after apricots and before apples. ? Peaches bloom about 2 weeks earlier than apples. Spring freezes much more prevalent in peaches. ? Most peaches are selffruitful (single variety will pollenize). ? Peach buds are set late June to late July of previous season’s growth on actively grown shoots (1520 inches long works best) Peach is a ‘drupe Some peaches (mainly fresh market types) the stone separates easily from the flesh when ripe called FREESTONE. These also ripen later, and have “melting flesh.” Some peaches (mainly processing types) the stone does not separate from the flesh (must be cut away) called CLINGSTONE ???Ripen earlier than FREESTONE, and have firm flesh, used for canning. Peach flesh for most ‘freshmarket’ peaches is soft often described as ‘MELTING FLESH ’ there is not the characteristic crunch or firmness associated with many fruits. Fruits also tend to be very juicy juice will freely drip from the fruit as it is eaten. Many peaches have a red coloration some slight and some pronounced when the fruit is ripe. Red coloration often extends into the flesh and pit. Whitefleshed peach (note red coloration into flesh and pit) Most peaches have a yellow flesh?.. Some have white flesh. Color controlled by a single gene. White var. can also have higher sugar, less acid content. A relatively new variety – Saturn Peach “??distinctive “flat” or “doughnut” peaches. Everyone loves something different— and they taste great. Red, freestone peaches open up to tender, white flesh with a mild, sweet flavor. Winterhardy trees bear heavy crops of fruit that measure 2188。2190。 inches in diameter. Ripens in late July” Peach is a smaller tree than apples and is pruned to a more open center system. No fruit on spurs, so must have some actively growing shoots for fruit production. Tree is pruned to 34 lower scaffold branches note absence of ‘central leader’ as with apple pruning. Keep center of the tree open for good light peration. “ Ideal Shape” Peach trees have more slender, flexible stems. Can’t hold as much fruit load. Need a certain number of fruit per branch/leaf to adequately size fruit but not break down tree. (6 8” between fruit) Peaches are more ‘precocious’ than apple setting a few fruits in the 2nd year, more in 3rd yearenough to establish a market, often harvesting a near full crop in the 4th year. Peaches are more sensitive to grass/weed petition than apples. Peaches are often clean cultivated? keeping the soil bare in a large area around the tree. Mulching would also work well. Mulched Peach Tree Thin bark of peach trunk is prone to heating/cooling in winter causing entry point for diseases (canker) Trunks can be painted white to reduce winter heating. Irrigation system minisprinkler at each tree on a short stake. For 1 year old trees, 25 gallons/week Fo