Comparison of yield, cob characteristics and sensory quality of six supersweet (sh2) corn cultivars grown in a subtropical environment.

摘要: Yield and cob characteristics of 6 supersweet corn (Zea mays L.) cultivars, homozygous for the recessive shrunken-2 (sh2) allele, were compared at 3 separate planting dates, in 1987-88, Bundaberg (lat. 25¦S.), Queensland. Sensory quality sh2 cultivars a standard cultivar, sugary (su) experiment. Marketable yield (total weight cobs-in-husks with least 125 mm usable kernels without damage or defects) declined between each plantings: midwinter, early spring, late spring. cultivar Sucro was consistently high (9.18-13.7 t/ha), whereas, that Honey Sweet low (2.88-5.43 t/ha). Total unmarketable cobs (cobs-in-husks having kernels, but highest ranged 5.31 9.18 t/ha. yields similar to those obtained other warm climates lower than cooler climates. The from midwinter marginally heavier preferred cob-in-husk range (310-360 g/cob) demanded on domestic markets; Snosweet, Candy Florida Staysweet within range; Sugar significantly (P<0.05) lower. None 2 later sowing dates achieved this desirable range. Because higher larger produced planting, incidence disease heat stress encountered plantings, it is proposed production should be limited subtropical Bundaberg. Taste panel testing indicated preference all over su terms both general acceptability texture (P<0.05), rated sweet (P<0.05). Snosweet scores also sweetest cultivar.