INFLUENCE OF CALCIUM SUPPLY ON BLOSSOM END ROT INCIDENCE IN TOMATO PLANT

被引：0

作者：

GARATE, A

DELBARRIO, AI

PENALOSA, JM

机构：

来源：

AGROCHIMICA | 1991年 / 35卷 / 04期

关键词：

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effect of Ca addition on the amendment of Blossom-end rot (BER) of tomato fruits grown under saline conditions has been studied. A glasshouse experiment with a 3-layer substrate (soil, organic matter and sand) and drip irrigation was carried out. The extra-calcium supply was made in 2 forms: as gypsum (solid) added to the substrate at the beginning of the assay (G), and as calcium nitrate (2mM) in the nutrient solution (N). Leaves and sap were sampled at 5 different physiological stages. BER incidence on tomato fruits significantly decreased when extra-Ca was supplied. These decreases reached 100% and 40% in N and G respectively compared with the control. At the same time Ca concentration in leaf and sap increased while Mg decreased with respect to the control.

引用

页码：356 / 361

页数：6