EFFECT OF SULFUR DEFICIENCY AND EXCESS ON YIELD AND SULFUR ACCUMULATION IN TOMATO PLANTS
EFFECT OF SULFUR DEFICIENCY AND EXCESS ON YIELD AND SULFUR ACCUMULATION IN TOMATO PLANTS
复制标题
DOI：
10.1080/01904168409363300
复制
发表时间：
1984-01-01
影响因子：
2.1
通讯作者：
FERNANDEZ, FG
中科院分区：
文献类型：
--
作者：
CERDA, A;MARTINEZ, V;FERNANDEZ, FG
番茄（L.番茄变种杂种6C-204）植物在发芽后在温室中使用添加有9种硫酸盐水平范围为0-105微克/升的营养液生长95天，直到每株长出6个成熟簇。对高浓度SO_4-S条件下植物的缺S症状和特征进行了观察和描述。果实产量受到硫缺乏和高SO 4-S浓度的负面影响。SO 4-S供应量的变化对根系生长的影响大于对根系生长的影响。生长培养基中的临界SO 4-S浓度范围为2-22.5 meq/l。随着营养液中SO_4-S供应量的增加，叶片和根系中的硫酸盐硫逐渐增加，而有机硫保持相对稳定。叶片硫酸盐硫临界值随生育期而变化。开花期最高产量与叶片中SO_4-S浓度为0.48-1.2%和有机硫浓度为0.25-0.35%有关。
Tomato (L. esculentum Mill. var. hybrid 6C-204) plants were grown for 95 days after germination until each one bore 6 ripe clusters in a greenhouse using nutrient solutions with 9 added sulfate levels ranging 0-105 meg/l. S deficiency symptoms and characteristics of plants growing under high SO4-S levels were observed and described. Fruit yields were negatively affected by both S-deficiency and high SO4-S concentrations. Top growth was affected more than root growth by changes in the amount of SO4-S supplied. The critical SO4-S concentration in the growth media ranged 2-22.5 meq/l. Leaf sulfate-S increased gradually in leaves and roots as SO4-S supply in the nutrient solution increased while organic-S remained relatively constant. Leaf sulfate-S critical value was growth stage dependent. Maximum yields at flowering were associated with leaf concentrations of 0.48-1.2% SO4-S and 0.25-0.35% organic-S.