CAJ | 학술논문

利用3个抗裂和4个易裂品种(系)分析了品种间、品种内单株间、单株内分枝间、主花序上的着生部位和角果相对含水量与抗裂角指数间的关系.结果表明,品种间抗裂角指数差异极显著,说明遗传特性是影响抗裂角性状的主要因素.品种内不同单株间抗裂角指数变异系数在15.81%～73.78%,但变异范围没有超出该品种的抗裂角特性.单株内不同着生部位影响抗裂角指数,不同品种分枝部位间角果抗裂角指数的变异范围在18.67%～93.57%.下部第一分枝的角果抗裂角指数大于其它部位角果,主花序顶部角果的抗裂角指数分别比主花序中部和下部角果小55.04%和60.43%.角果相对含水量对抗裂角指数的影响很大,油菜角果的抗裂角指数(y)随角果相对含水量(x)的增加呈直线上升的关系,即y=0.014 9x-0.477 9, R~2为0.428 4.上述各因素对抗裂角品种的影响远大于对易裂角品种的影响.
이용3개항렬화4개역렬품충(계)분석료품충간、품충내단주간、단주내분지간、주화서상적착생부위화각과상대함수량여항렬각지수간적관계.결과표명,품충간항렬각지수차이겁현저,설명유전특성시영향항렬각성상적주요인소.품충내불동단주간항렬각지수변이계수재15.81%～73.78%,단변이범위몰유초출해품충적항렬각특성.단주내불동착생부위영향항렬각지수,불동품충분지부위간각과항렬각지수적변이범위재18.67%～93.57%.하부제일분지적각과항렬각지수대우기타부위각과,주화서정부각과적항렬각지수분별비주화서중부화하부각과소55.04%화60.43%.각과상대함수량대항렬각지수적영향흔대,유채각과적항렬각지수(y)수각과상대함수량(x)적증가정직선상승적관계,즉y=0.014 9x-0.477 9, R~2위0.428 4.상술각인소대항렬각품충적영향원대우대역렬각품충적영향.
Influencing factors of silique shatter-resistance of rapeseed (Brassica napus L.) were analyzed using three shatter-resistant and four shatter-susceptible accessions. The factors included variation among accessions,single plants,branches,inflorescence position and silique's relative water content.Results indicated that silique shatter resistance indexes (SSRI) among accessions reached significant difference level.It indicated that the genetic features were main factors influencing SSRI. The coefficient of SSRI variance among single plants within the accessions ranged from 15.81% to 73.78%,but their variation did not exceed the SSRI ranges of each accession.Inflorescence positions within plants significantly affected SSRI.The coefficient of SSRI variance among branches within plants varied from 18.67% to 93.57%.The bottom first branch had the highest SSRI within individual plant.Compared with siliques from middle and bottom parts of the main inflorescence,the SSRI of top decreased by 55.04% and 60.43%,respectively. Relative water content in siliques (x) affected SSRI (y) greatly. They related as y=0.014 9x-0.477 9 (R~2=0.428 4). It was concluded that all investigated factors had more influences on resistant accessions than on susceptible ones.