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(木奈)在我省有数百年的栽培历史,20世纪90年代得到迅速发展,面积约达3万多公顷,主要分布在沙县、将乐、浦城、古田、福安等地。但由于粗放管理、品种退化、施肥不当、山地干旱等原因,梅果的产量、品质、面积逐年下降。多年的试验表明,硼素营养障碍是制约因素之一。 (木奈)为落叶性小乔木,常年惊蛰至谷雨季节,(木奈)树即萌芽抽梢,但硼素营养失调的植株则表现新梢萌芽迟,叶片狭小,并沿中脉向上卷曲,叶身增厚,叶色暗绿。轻度症状一般在土壤水分增多后症状可逐渐消失,一般都能开花,但花器官发育不良,落花落果严重。而重度症状的植株则发展为上部枝条枯枝,花蕾枯萎凋落,基本不挂果。横截病枝,可见韧皮部与木质部之间呈一环状褐色坏死组织,显微生理解剖观察表明,症状小叶的叶缘具有原壁型的细胞组织增生,并延伸为突出物,叶绿体数量少且形体不健全,木质部不发达等。症状枝茎的皮孔较多,树皮的木栓层局部翘起,韧皮部不发达,严重枝茎的木栓形成层不形成木栓细胞,而形成圆珠状的填充细胞,出现瘤花、瘤从等各种形态的皮
(Mina) in the province for hundreds of years of cultivation history, the rapid development of the 20th century 90’s, an area of about 30,000 hectares, mainly in Shaxian, music, Pucheng, Gutian, Fuan and other places. However, due to extensive management, degradation of varieties, improper fertilization, mountainous drought and other reasons, the yield, quality and area of plum fruit decreased year by year. Years of trials have shown that boron disorders are one of the limiting factors. (Chennai) deciduous small trees, perennial Jingzhe to Guyu season, (Mina) tree that is sprouting shoots, but the boron imbalance of the plant shoots show shoot bud late, small leaves, and curl up along the midrib, leaf body Thickening, dark green leaves. Mild symptoms generally increase in soil moisture, the symptoms can gradually disappear, generally can flowering, but poorly developed floral organs, falling flowers serious. The severe symptoms of the plant is the development of branches above the branches, withered flower buds, the basic non-fruiting. Transverse diseased branches, visible phloem and xylem showed a ring of brown necrosis, microscopic anatomical observation showed that the leaflets of the symptomatic leaflets with protocell-type cell proliferation, and extended as a prominent number of chloroplasts and Body is not perfect, xylem underdeveloped. Symptoms of lenticels more lenticels, bark of the local cork capping, phloem underdeveloped, severe thorn of the cork cambium layer formation does not form cork cells, and the formation of bead-shaped filled cells appear tumor flower, Tumor from other forms of skin