| Resumo: |
The objective of the study was to identify and describe the visual symptoms in seedlings of tomato processing, stemming from lack of macro and micronutrients and determine biometric attributes that stage. For this, using two hybrid (N901 and H9553) conducted an experiment in a agricultural greenhouse, in randomized complete block and in factorial arrangement with four replications. The treatments are composed of fourteen nutrient solutions as follows : full/control and the solutions with omitting isolated nutrients (-N, -P, -K, -Ca, -Mg, -S, -B, -Cu, -Fe, -Mn, -Mo, -Zn) and only deionized water. Held sowing in trays with substrates for later transplanting for phenolic foam. Daily treatments to be applied and/or deionized water solutions. For 30 days of experiment was realized the analysis and records the evolution of nutritional deficiency symptoms. The results showed that the omission of isolated nutrient committed to quality seedlings, leading to morphological changes. The first symptoms developed on seedlings grown under omission, N and deionized water, Fe and Ca, respectively. The dry mass decreased in all treatments, except in the absence of B, with the following order of reduction: deionized water = N > Ca > K = P = S = Fe > Mg = Mn = Mo > Complete = Cu = Zn > B. These results are different from those found in the literature of adult plants. There was not interaction between the solutions and the hybrids, however the H9553 was more sensitive to nutritional deficiencies. |
|---|
