Study Physiological Characters of Adventitious Nodal Roots of Maize During Grain Filling

doi:10.7668/hbnxb.2010.06.035

Abstract

Abstract: Physiological characters of adventitious nodal roots during grain filling of maize(Zea mays L.)two genotypes Yedan 13 and Danyu 13 were examined from field trails.Root sampled by mining method.From first layer to eighth layer adventitious nodal roots used鹪the sample, content of total soluble sugar, soluble protein and free amino acid of from first layer to eighth layer adventitious nodal roots were determined.The results showed that the total soluble sugar content and free amino acid content of sixth layer, seventh layer and eighth layer of adventitious nodal roots were significantly greater than with from first layer to fifth layer of adventitious nodal roots’(P<0.05), soluble protein content of seventh layer and eighth layer of adventitious nodal roots were significantly greater than that from first layer to sixth layer adventitious nodal roots’(P<0.05).There was significant positive pearson correlation be— tween content of total soluble sugar and content of free amino acid of roots.Conclusion indicated that the physiologi— cal characters of sixth layer, seventh layer and eighth layer adventitious nodal roots showed high activity during grain filling of maize.

Key words: Adventitious Nodal roots, Carbon metabolism, Nitrogen metabolism

CLC Number:

S513.01

LIU Sheng-qun, SONG Feng-bin, ZHOU Xuan, LIU Tie-dong. Study Physiological Characters of Adventitious Nodal Roots of Maize During Grain Filling[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(6): 182-186. doi: 10.7668/hbnxb.2010.06.035.

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