Effects of Ridge-planting Pattern on Agronomic Traits, Quality and Yield of Sweet Corn in South China

LIKUI XU1,2, BINRONG PAN1,2, GAOHONG YUE1,2, XIXUE MEI1,2, YONGAN LIU1,2, ZONGCHEN ZHANG1,2 and ZHIHUI ZHOU1,2
1 Wenzhou Vocational College of Science and Technology, Wenzhou, 325006, P.R. China
2 Key Laboratory of Crop Breeding South Zhejiang, Wenzhou, 325006, P.R. China

Abstract

LIKUI XU, BINRONG PAN, GAOHONG YUE, XIXUE MEI, YONGAN LIU, ZONGCHEN ZHANG and ZHIHUI ZHOU, 2014. Effects of Ridge-planting Pattern on Agronomic Traits, Quality and Yield of Sweet Corn in South China. Bulg. J. Agric. Sci., 20: 145-149

 

As a method to avoid waterlogging, ridge planting is widely adopted in sweet corn (Zea mays saccharata Sturt) cultivation in south China. The effects of ridge-planting pattern on agronomic traits, quality and yield of sweet corn were studied in 2012. Sweet corn Jinyutian No. 1 hybrid (sh2) and four ridge-planting patterns were used, and the experimental was designed as a randomized block with three replications. The results showed that ridge-planting pattern almost had no effect on leaf number and chemical properties (moisture, total sugar and starch content) of sweet corn. Although the physical properties (fresh- and husked-ear weight, ear length, kernel rows, kernels per row, ear diameter, kernel depth and 100-kernel weight) of Pattern 3 were higher than other three patterns, the plant density and agronomic traits (leaf area per plant, leaf area index, plant and cob height) of Pattern 1 were higher and the corn stalk rot mortality of Pattern 1 was lower than other three patterns, and the freshear weight of Pattern 1 was higher than Pattern 2 and Pattern 4 all the time, and was lower than Pattern 3 significant only at 21 DAP. As a result, the yield of Pattern 1 was higher than other patterns significantly all the time.

Key words: sweet corn; ridge planting; agronomic trait; yield; quality

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