The test was located in a commercial field of ‘H9280' (H. J. Heinz Company), approximately five miles west of Maxwell (NE 1/4 section 14, T. 16 N., R. 4 W., on the southwest corner of the Orchard Mills and Fairview Roads intersection). The soil was a Myers clay/Myers clay loam, with storie indices of 42 & 62, respectively. The test plots were direct-seeded on February 4 and plant emergence occurred between March 10-20. Average soil temperatures, at a six-inch depth, ranged from 55-66^"F during the germination period. A total of 3.97 inches of precipitation was received during this time. Additional rainfall and/or sprinkler irrigations were received during the early plant growth period. Furrow irrigation was used for the majority of the season.

Twelve replicated and fifteen observational varieties (page 10) were seeded in 100 foot long by one bed wide plots. Two seed-rows were planted on raised sixty-inch beds (center-to-center) with a hand push-planter. Each replicated variety was planted in four plots, using a randomized complete block experimental design. The observational varieties were planted into single, non-replicated plots. With the exception of planting and harvesting, all operations were performed by the grower and were consistent with good farming practices.

There were minor disease problems observed in most early-season fields, including the test site. A modest amount of bacterial speck, (Pseudomonas syringae), was observed in the test area, but it was not an economic problem requiring control measures. The field variety, ‘H9280', is resistant to speck, which kept disease pressures in the test low. There were no significant insect or weed problems noted in the test area.

Fruit samples were collected shortly before harvest and submitted to the state grading station at the Colusa Canning Company processing facility in Williams for soluble solids and color determinations. The plots were harvested on July 21. Yields were obtained and transformed to tons per acre of marketable fruit.

Preplant soil samples were taken from the plot area and submitted to the UCD analytical laboratory for analysis. The results were:

Mid-season test

This test was located in a commercial field of ‘H9491' (H. J. Heinz Company) approximately five miles south of Grimes (NE 1/4 section 31, T. 14 N., R. 1E., Tule Road). The soil was a Sacramento clay, with a storie index of 53. The plots were direct-seeded on May 18 and plant emergence occurred by June 1. Average soil temperatures at a six inch depth ranged from73-82^"F during the germination period. The plots were irrigated-up with a traveling wheel line, which was also used to supply irrigations for the remainder of the season.

Eighteen replicated and thirty-six observational varieties ( page 17) were grown in 100 foot long by one bed wide plots. A single seed row was planted on sixty-inch wide beds (center-to-center) using a hand push-planter. Each replicated variety was planted in four plots, using a randomized complete block experimental design. The observational varieties were planted in single, non-replicated plots. With the exception of planting and harvesting, all operations were performed by the grower and were consistent with good farming practices. There were no pest management, or other problems, noted during the growing season.

Fruit samples were collected shortly before harvest and submitted to the state grading station at the Robbins grading station for soluble solids and color determinations. The plots were harvested on October 5 & 6 and yields per acre calculated.

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Last modified: August 16, 2000