CAJ | 학술논문

利用携带不同矮秆基因的近等基因系,通过两年、两地的试验研究证明,Rht8半矮秆基因虽然其总小穗数显著低于其他系,但其籽粒产量、小花结实率较Rht10和Rht12显著高.Rht10的降秆作用最强,千粒重显著高于Rht8,但其分蘖成穗率、结实率及小区籽粒产量显著低于其他,表现对环境条件特敏感.Rht12矮秆基因的降秆程度显著高于Rht8,但由于生物产量太低、成熟太晚,造成籽粒产量显著降低,在小麦育种中单独利用价值较低.
이용휴대불동왜간기인적근등기인계,통과량년、량지적시험연구증명,Rht8반왜간기인수연기총소수수현저저우기타계,단기자립산량、소화결실솔교Rht10화Rht12현저고.Rht10적강간작용최강,천립중현저고우Rht8,단기분얼성수솔、결실솔급소구자립산량현저저우기타,표현대배경조건특민감.Rht12왜간기인적강간정도현저고우Rht8,단유우생물산량태저、성숙태만,조성자립산량현저강저,재소맥육충중단독이용개치교저.
The studies, by using 5 near-isogenic lines carrying different dwarfing and semi-dwarfing genes, through wo years experiments in two different entironments, have proved that the line carring Rht8 semi-dwarf gene had significantly higher grain yield and kernel number per spike than Rht10 and Rht12 gene lines although its total spikelets was significantly lower than others. The line carring with Rht10 dwarfing gene had the shortest plant height among all the RAt lines. Its 1 000 grain weight was significantly higher than RAt8 line. But it had significantly negative effects on kernel number per spike, spike number per m~2 and grain yield, and was special sensitive to environments. The line with Dwarf gene RAt12 had significantly negative effect on plant height comparing with RAt8, and had very lower above ground biomass, with late maturity, resulting in a significant reduction in grain yield. Therefore, its breeding value is lower used solely.