A tree can bear the fruit of 11 species?

<wbr> <p> A tree can bear 11 <wbr> www.thebeijingnews.com fruit? · 2008-1-279: 56: 45 · Source: Beijing News </ p> <p> <wbr> Fukushima science in a .lemon tree grafting the 10 kinds of fruit. </ p> This world fruit grown in the history of a record. Information pictures <p> <wbr> </ p> <p> <wbr> </ p> <p> Some .time ago a domestic media reports: Japan Fukuoka Prefecture something named Fukushima School of old, has spent 15 years time, the method used in grafting, make a lemon tree and has 11 different fruit. </ p> <p> <wbr> < ./ p> <p> If this 11 fruit including bananas, grapes, apples, strawberries, and other colorful species, so it can be considered a miracle. </ p> And animals, the plants can only close genetic relationship to the success of .the graft. In fact, the so-called the "11" are citrus fruits, such as the "convex Poonen" (that is, citrus) is a type of Orange, later white grapefruit is a grapefruit, eight Shuo (hassaku) is .a tangelo hybrid varieties ... So this could also be regarded as a miracle? <p> <wbr> </ p> <p> Citrus fruits are rutaceae. </ p> Rutaceae fruit variety many, apart from lemon, orange and .grapefruit, citrus, Orange, grapefruit and Citron Medica l., etc. So many kinds of course big full taste buds of the world, but the botanist melancholy. How to classify them? botanists to this problem quarrel as 100 years. United States agricultural .scientist Shi Eagle considers, in addition to Citrus Poncirus ("South Orange North of Poncirus Poncirus") and kumquat, remaining only divided into 16 species. Japan's long Saburo Tanaka is a sigh of relief to the oranges and other citrus designated kumquat became 159 species ., light is wide Orange skin (skin better peeling oranges), there are 36! <p> <wbr> </ p> <p> Fortunately, scientific development always unexpectedly solved previous thorny issues. </ p> The 1990s DNA analysis are .widely used, many previously quarrelsome taxonomic problems are gradually resolved. Citrus classification and origins, and preliminary findings are slowly, the answer was amazing, Shi Yong cell or Tanaka, are overestimated citrus species diversity, because apart from Poncirus and kumquat, remaining all citrus .maybe just three wild offspring! <p> <wbr> </ p> <p> The three wild species is Citron citrus Medica l., wild and wild wide leather orange. </ p> They initially have only grows in the dense forests .of southern China - as if Qu Yuan in the Orange song, "said, after King Michael tree, South Haven. First, they use delicious fruit attract animals to eat, to spread the seeds. Later, humans find it delicious and began to cultivate .them. <p> <wbr> </ p> <p> When the two species are cultivated together, by accident, they will each be powder and hybrid, the hybrid of seed, the longest out of fruit trees will bear the taste and .the different fruit. </ p> Those who taste the unique and excellent hybrid varieties are saved, they formed a new type of fruit. Inspired by the farmer also intends to carry out artificial hybrid, the more colourful citrus varieties. In this way, .pomelo and wide leather Orange hybrid produced Orange, oranges are like grapefruit Peel the skin so difficult, and the like as wide leather Orange sweet sour and bitter taste of no grapefruit; wide leather orange and orange hybrid have orange, tangerine peel of the degree of .difficulty is between orange peel and orange; citrate Medica l. and sour orange or tangerine hybrids of the lemon juice, it had reached in acidity on the extreme; grapefruit and orange hybrid you sweet sour bitter fragrance produced a range of grapefruit ... < .p> <wbr> </ p> <p> Why citrus fruits so popular, being nurtured so many varieties? this is probably because it contains a lot of citrus fruits, fruit juice and is very easy to squeeze. </ p> Now ., the world's total annual production of citrus fruits of more than 1 million tons, ranking first in the world. <p> <wbr> </ p> <p> Therefore, in a lemon tree grafting 11 kind of fruit, is actually very .easy, because in the real grafted species involved in only three, and three kinds of each other is also the high affinity. </ p> <p> <wbr> </ p> <p> □ Liu repute (Beijing science writer) .</ p>.