Ten winegrape vineyards consisting of different cultivars were leaf petiole sampled at bloomtime. Petioles were analyzed and results composited for the survey. There were indications that boron, iron, nitrogen and phosphorus were nutrients where potential problems (deficiencies) were likely to occur. This survey supplied information for the basis of developing a monitoring program on an annual basis.

One red and one white cultivar of winegrapes grown in Southern Arizona was pruned to four different methods. The red cultivar was 'Merlot' and the white was 'Sauvignon Blanc'. The pruning methods were 2 bud spur, 4 bud spur, cane and basal buds only. The basal bud treatment was eliminated for 'Sauvignon Blanc'. The 4 bud spur method resulted in significantly greater yield when compared to the other methods. Fruit produced from the basal bud only treatment resulted in fruit that was significantly greater in pH and acid content. The 'Sauvignon Blanc' cultivar had significantly higher yield with cane pruning with no difference in fruit quality.

Four year old 'Flame Seedless' grapevines, located in a commercial vineyard, were subjected to increased water stress levels based on infrared canopy temperatures and the Crop Water Stress Index (CWSI) for two years. CWSI levels were approximately .18, .30 and .33 for the wet, medium and dry treatments. In the first year there were no significant differences in yield however, there was a significant reduction in the amount of water applied in both the medium and dry treatments when compared to the wet treatment. In addition, the wet treatment had significantly greater growth during the first growing season when comparing pruning weights.

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Cucumber plants in the vegetative phase of growth received deficient, sufficient, or toxic treatment of manganese (Mn) during a 15-day period beginning 43 days after germination. Deficiency and toxicity of manganese both supressed accumulation of fresh and dry weight. Stem length, number of leaves, and number of seconday meristems per plant were not significantly different among Mn treatments. Manganese-deficient plants accumulated less manganese and nitrogen but more copper and iron, and about the same amount of zinc, phosphorus, and potassium as the Mn-sufficient plants. Manganese toxicity caused cucumber plants to accumulate less copper, nitrogen, phosphorus, and potassium, but more manganese, and about the same amounts of iron and zinc as the Mn-sufficient plants.

Yield data were taken with a long -day onion variety, using different levels of nitrogen, phosphorous and potassium and at two different levels of soluble salts in the soil. Yields of the plots with additional fertilizer applied did not vary statistically from the check plot, which had 79 lbs/ac of nitrogen and 66 lbs/ac of P205. A correlation was found, however, between the electrical conductivity of a saturated paste extract from the soil and the yield of onions. A loss of 205 sacks (50 lbs /sack) of onions per acre are lost for each unit increase in soil conductivity.