Leaves show bright yellow interveinal chlorosis , usually more acutely in apical areas and in younger leaves followed sometimes by bleaching and scorching 叶片脉间黄化，通常在叶尖和嫩叶上更为严重，有时转变成白化并枯黄。
They show less differentiation and contain reduced amounts of supporting material , such as lignin , concentrating resources on elongation of internodes 除了机械支持组织如木质不发达，节间明显伸长外，黄化苗与正常苗之间的区别不大。
Profuse , small yellow - green chlorosis areas between dark green veins of older or mid - stem leaves , followed by numerous small brown necrotic spots 缺锰番茄叶片：老叶或茎中部叶片的深绿色叶脉上有大量的失绿黄化小区，随后转变成大量褐色坏死小斑点。
Browning of the margins of the lower leaves spreads both inwards across the leaf surface and upwards on the plant ( cv . hurricane ) 菊花缺钾:叶缘黄化或棕褐色,但取决于缺钾程度,植株生长不一定受到影响.下部叶片叶缘褐色斑块向内扩散到整个叶片表面及向上扩展整个植株
Blotchy interveinal yellow - green mottling and marginal yellowing of expanded leaflets ; irregular brown necrotic patches ; wavy margins and down - curved leaf tips 矮生菜豆缺锌：带泡的脉间形成黄绿色斑纹,展开的小叶边缘黄化及不规则的褐色坏死斑点,波浪形边缘,叶尖向下卷曲
Older leaves have ivory - tinted necrotic spots and shreaks coalescing into larger scorched areas ; some leaves show pale ( faded ) yellow chlorosis over whole surface of apical regions 缺钾的大麦叶片：老叶出现灰白色斑点，逐渐连在一起呈烧焦区域，有的叶片黄化一直到叶尖。
86 . 7 % buds surrived on 1 / 2 ms containing 250 mg / 1 km after 28d . two of six buds were dead 40d after that were put on 1 / 2ms medium containing 0 . 1 mg / 1 naa , and the tall of other four buds was less 2 cm 筛选后的芽在1 / 2ms + naao . 1培养基上生长40天后无根形成，并且6株芽中2株黄化死亡，其余4株高度不到2cm 。
Almost white interveinal chlorotic banding in oblique patches . an “ indicator ” condition for nickel excess which is quite distinct from yellow - green or yellow interveinal chlorosis caused by simple iron deficiency 镍中毒的燕麦叶片：脉间几乎都是带有斜斑的白带；镍过剩的显示症状不同于由单独缺铁引起的脉间褪绿黄绿化或黄化。
A causal diagnosis is conducted on the yellows of machilus thunbergii by means of the soil - plant chemical analysis , enzyme diagnosis , and field experiments , which grow in the saline - alkali soil at zhujiajian nursery stock base 摘要采用土壤植物化学分析、酶学诊断和田间试验对舟山市朱家尖苗木基地盐碱地土壤红楠黄化成因进行了研究。
There was no evident difference between the cultures of variety tx0014 and anti - pseudomonas 3 for their sensitivity to kanamycin ( kan ) . the leaf discs turned yellow and calli were hardly induced at 50mg / l kan concentration in the medium m1 番茄tx0014和抗青枯3两个品种对kan的敏感程度差异不大，当kan浓度为50mg l时，叶盘黄化，几乎不形成愈伤：而50mg / l的kan使番茄植株不能生根和生长。
