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《Journal of Agricultural University of Hebei》 2001-04
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Studies on the biological characteristics of glumes of Johnsongrass (Sorghum halepense)

WANG Jian-shu1,LI Yang-han2,SUN Hai- qing1 (1 Handan Agricultural College,Yongnian 057150, China; 2.Nanji ng Agricultural University, Nanjing 210095, China)  
Germination of caryopsis of Johnsongrass and its re lation with glumes were studied. The results indicated that the factors causing lower germination percentage of dormant caryopsis are the presence of chemical inhibitor in glumes and mechanism resistance of glumes. The effect of these two factors have obviou s changes during different period of seeds-keeping. Relation between function an d structure of glumes of Johnsongrass were observed. That there are "8_shaped"s tructures distributing on the surface of the glumes were observed by using scann i ng electron microscope. The structures control dormant and germination of caryop sis according to analyze. Glumes are useful structures for caryopsis germination and protecting caryopsis of Johnsongrass.
【Fund】: 河北省科技厅科技攻关课题 (0 0 2 2 0 12 4)
【CateGory Index】: Q944.2
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