Skimmia japonica
- Skimmia japonica的基本解释
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[医] 茵芋
- 相似词
- 更多 网络例句 与Skimmia japonica相关的网络例句 [注:此内容来源于网络,仅供参考]
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Since 1996, the Rice Research Institute of Liaoning Province has laid stress on the genetic improvement of stigma exsertion rate of japonica male sterile lines. By introducing the genes of high stigma exsertion rate from indica into japonica, a group of japonica male sterile lines with high stigma exsertion rate have been successfully developed. Their stigma exsertion rate have been greatly increased from less than 30% to more than 80%, resulting in an increased outcrossing rate over 60% and a high seed production yield of 3.0~4.5 t/hm^2. Moreover, using these sterile lines, a group of new japonica hybrid rice combinations such as Liaoyou 5218 (Liao 5216A/C418), Liaoyou 1052 (Liao 105A/C52) have been developed and released to commercial production.
自1996年以来,辽宁省稻作研究所加强了粳稻不育系的柱头外露率遗传改良研究,通过导入籼稻的高柱头外露率基因,选育了一批高柱头外露率的粳型不育系,柱头外露率由原来的30%以下逐步提高到80%以上,异交结实率可达到60%以上,杂交制种产量可提高到3.0~4.5t/hm^2,并配组育成了辽优5218(辽5216A/C418)、辽优1052(辽105A/C52)等杂交粳稻新组合,在生产上得到了大面积推广应用。
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In Japonica heterosis utilization, the purity of hybrid seeds was sometimes low due to the self-fertility and/or unstable sterility of some BT type Japonica cytoplasmic male sterile lines. For the WA type Japonica CMS lines, their sterility is much stable, but there is also some difficult to take use of them because their flowering habit is bad and it is very difficult to restore their fertility. The HL type CMS lines were identified to have the same flowering habit and outcrossing rate with the BT type CMS lines in Japonica hybrid rice. Moreover, the sterility of HL type CMS lines was more stable than that of BT type, and their restorable characteristics was better than that of WA type.
部分BT型粳稻不育系存在自交结实现象,不育性的稳定性较差,影响杂交种的纯度;WA型粳稻不育系虽然不育性稳定,但开花习性差,育性最难恢复,应用难度较大;HL粳稻不育系开花习性及异交结实率与BT型粳稻不育系无显著差异,育性稳定性明显好于BT型粳稻不育系,可恢复性明显好于WA型粳稻不育系,较好地协调了育性稳定性、开花习性和可恢复性几方面的矛盾。
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The new plant type Indica and Japonica varieties showed somewhat check heterosis whencrossed with one of the four sterile lines. America Japonica varieties showed few fillers andlower seed set ratio and Africa Japonica varieties, Nuda varieties, Javanica varieties have fewtillers and taller plant height, so they could not be used directly in Japonica hybrid ricebreeding program.
美国稻的分蘖少且结实率较低,产量优势不大;非洲稻的分蘖少,实粒数也少,株高太高,无法直接利用;新株型粳稻与培矮64s、N422s配组有一定的优势,新株型籼稻与N422s、108s配组的优势也较大,在华北两系杂交粳稻育种中也有一定的利用价值;光壳稻和爪哇稻的株高偏高,无法直接利用,可间接利用这两个生态型千粒重大的特点。
- 更多网络解释 与Skimmia japonica相关的网络解释 [注:此内容来源于网络,仅供参考]
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Skimmia japonica:{茵芋}
Sium suave {泽芹} | Skimmia japonica {茵芋} | Skimmia reevesiana {茵芋}{茴芋}
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Skimmia reevesiana:{茵芋}{茴芋}
Skimmia japonica {茵芋} | Skimmia reevesiana {茵芋}{茴芋} | Sloanea hemsleyana {三角枫}{油板栗}
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Rutaceae Skimmia:茵芋属
降真香 Rutaceae Acronychia pedunculata | 茵芋属 Rutaceae Skimmia | 海南茵芋 Rutaceae Skimmia hainanensis