水稻不同初级三体幼穗离体培养培养力的研究

以中籼３０３７及其１２种初级三体的幼穗为外植体，研究了不同初级三体之间幼穗培养力的差异。结果表明：（１）以愈伤组织途径培养成苗，不同三体之间幼穗愈伤组织诱导率、愈伤组织分化成苗率及幼穗培养力均存在差异，幼穗愈伤组织诱导率与愈伤组织分化成苗率无显著相关；（２）以幼穗直接出芽，一次成苗途径培养，不同三体的培养力亦存在差异；（３）同一三体２种成苗途径的培养力之间并无显著的相关性。

STUDY ON THE IN VITRO CULTURE ABILITY OF YOUNG PANICLE OF DIFFERENT PRIMARY TRISOMICS IN RICE

For investigating the distinction in in vitro culture ability of young panicle among different primary trisomics in rice, young panicles were harvested and cultivated on different media. The results were shown as follows: (1) There was significant difference in callus induction ratio, callus reproduction ratio among different primary trisomics. But there was no significant correlation between callus induction ratio and callus reproduction ratio. (2) There was also significant difference in culture ability among different trisomics as the little plants were emerged directly from cultured young panicles. (3) No significant correlation was detected between the two methods in culture ability, to the same trisomic.