cm long thick to slightly clubbed extending to 0 6 to 1 0 cm above the shoulders of the cavity seeds 0 6 to 0 8 cm in length obtuse with some slightly tufted dark brown maturity season maturity by color development is slightly ahead to 10 days earlier than 34 redchief u2122 34 maturity as analyzed by ethylene content of the fruit is the same as 34 redchief u2122 34 under the same growing conditions production regularity aw 164 is more precocious than 34 redchief u2122 34 a greater number of less mature trees produce fruit than in the case of 34 redchief u2122 34 alternating years of over cropping and under cropping have been noted ripening dates in 1991 in 1991 in southwestern michigan the ripened aw 164 fruit was first picked on aug 24th sugar content sugar content as determined qualitatively varies somewhat from year to year no quantitative data is available growth habit somewhat less vigorous than 34 redchief u2122 34 upright with spur type fruiting habit annual terminal growth is 12 to 18 inches in juvenile trees and approximately 12 inches in mature trees although terminal growth rate in southwestern michigan varies with the nature of the rootstock used leaves medium to large dark green simple ovate to accuminate at the tips simple serrations of the leaf margins upper surface smooth lower leaf surface moderately pubescent midrib raised with red color extending to the leaf base lateral veins white to light pink and slightly raised leaf size length 8 5 to.