Research on Source-sink Relationship of Sugar Beet( Beta vulgaris L.)

doi:10.7668/hbnxb.2008.03.024

Abstract

Abstract: The experiment was carried out by the method of comparative physiology,which was conducted to study on the formation of the population and correlation of the source-sink in different variety sugar beet,and the infection of the development of source-sink on the yield formation.The results showed that LAI and LAD of the sugar beet could be used as the important index of distinguish the size and capacity of the source.The assimilation capability of LAD could influence the potential of the sink of the earthnut straightly,the larger LAD could restrains the expands of the earthnut in the evening and even influences the formation of the yield and quantity of the sugar beet.It indicates the connection of fertility sugar beet with high sugar beet at the moment.The peak value of LAI present at the root and sugar increasing stage.The highest LAI should over 4.3.If it reaches the highest peak,it could keep at the comparatively steady persistent period about 20 days.And the LAI should keep at about 2.4 in the evening of sugar content accumulated stage.The colony LAD should arrive at above 19.3 m²·d in the root and sugar increasing stage,then it presents decline slowness in the end.The results above can offer the theoretic gist for directing improving the sugar beet′s producing quality-yield practice.

Key words: Sugar beet( Beta vulgaris L.), Population, Source-sink relationship, Yield, Sugar content

CLC Number:

S5.3

ZHOU Hai-yan, ZHANG Shao-ying, LI Guo-long, ZHANG Hai-xia. Research on Source-sink Relationship of Sugar Beet( Beta vulgaris L.)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(3): 94-99. doi: 10.7668/hbnxb.2008.03.024.

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