Adjustment of Colony on Maize( Zea mays L.) Yield and Its Sink-source of Different Spike Type

doi:10.3321/j.issn:1000-7091.2002.z1.042

Abstract

Abstract: When the density of maize was changed,the production of the different maize spike type was prominent otherness.When the planting density was no higher than 105 000 plant/ha,the large spike type of maize showed curve that have single peak,however the small spike type of maize showed a increasing tread.The appropriate planting density was different,but the relations among different yield morphological characters were assorted with each other well which showed more kernel,high kilokernel weight,the low ratio of empty stem and the fitting harvest index.When got high yield,the harvest indexes of the different spike types of maize were all 0 5 or so.The sink-source relation adjustment of different spike types of maize were different,but when got high production,the sink-source ratio were all 1 50 or so.

Key words: Maize, Spike type, Sink-source, Density

CLC Number:

S513

GUO Yu-qiu, DONG Shu-ting, WANG Kong-jun, ZHENG Hong-jian, HU Chang-hao, ZHANG Ji-wang. Adjustment of Colony on Maize( Zea mays L.) Yield and Its Sink-source of Different Spike Type[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(S1): 193-198. doi: 10.3321/j.issn:1000-7091.2002.z1.042.

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