CAJ | 학술논문

[目的]对60Coγ射线辐照对野牛草坪用性状的诱变效应进行研究。[方法]以经不同辐照强度的60Coγ射线处理后的野牛草[Buchloe dactyloides （Nutt.） Engelm.]为试验材料,对其进行坪用相关性状的测定,分析不同γ射线不同辐照强度（1200、1400、1600、1800、2000Gy）对野牛草当代植株草坪相关性状的诱变效应。[结果]各辐照处理的野牛草发芽率变化趋势不一致,种苗的根长和芽长均小于对照;与对照相比,辐照处理后幼苗的高度显著变小,分蘖数、株高、叶长和叶宽均小于对照;匍匐茎长度、匍匐茎粗和匍匐茎节数与对照差异不显著。[结论]该研究为确定野牛草诱变育种的适宜γ射线辐射剂量及筛选有益突变体奠定基础。
[목적]대60Coγ사선복조대야우초평용성상적유변효응진행연구。[방법]이경불동복조강도적60Coγ사선처리후적야우초[Buchloe dactyloides （Nutt.） Engelm.]위시험재료,대기진행평용상관성상적측정,분석불동γ사선불동복조강도（1200、1400、1600、1800、2000Gy）대야우초당대식주초평상관성상적유변효응。[결과]각복조처리적야우초발아솔변화추세불일치,충묘적근장화아장균소우대조;여대조상비,복조처리후유묘적고도현저변소,분얼수、주고、협장화협관균소우대조;포복경장도、포복경조화포복경절수여대조차이불현저。[결론]해연구위학정야우초유변육충적괄의γ사선복사제량급사선유익돌변체전정기출。
[Objective] This study aimed to investigate the mutagenic effect of 60 Co γ-rays irradiation on turf characteristics of Buchloe dactyloides （Nutt.） Engelm. [Method] Buffalo grass were irradiated with 60 Co γ-rays at five different radiation intensities （1 200, 1 400, 1 600, 1 800, 2 000 Gy） to determine the related turf characteristics and analyze the mutagenic effect of 60 Co γ-rays at different radiation intensities on buffalo grass. [Result] Germination rates of buffalo grass irradiated by different radiation intensities of 60 Co γ-rays varied inconsistently, and the root length and bud length were shorter than the control; compared with the control, the height of irradiated seedlings was significantly reduced, and the number of tillers, plant height, leaf length and leaf blade width were smaller than the control; however, the stolon length, stolon diameter and number of stolon nods had no significant difference compared with the control. [Conclusion] This study laid foundation for determining the appropriate radiation intensity of 60 Co γ-rays and selecting useful mutants of buffalo grass.