1) low seed set
结实率低
1.
【Objective】 Our aim is to reveal the factors resulting in low seed set during chrysanthemum breeding and seriously influencing utilization of its wild germplasm.
【目的】揭示栽培菊花与野生菊杂交结实率低,严重影响野生资源优异基因利用的原因。
2) Low seed-setting
低结实性
3) Setting percentage
结实率
1.
In order to research the setting percentage and the grain weight of spring wheat, two varieties Longmai 26 and Kenda 4 were used.
利用龙麦26和垦大4号两个小麦品种,调查了不同粒位结实率和粒重的情况。
2.
By selecting Yupingdabanli,Shifeng,Tielitou and Jiujiazhong as it s pollinizers,the setting percentage could reach to 91 84,92 16,92.
为了探明台江红油大板栗的结实与授粉特性 ,以便为其配置授粉品种提供科学依据 ,进行了台江红油大板栗结实与授粉特性的研究 ,结果表明 ,台江红油大板栗的自花结实率低 ,自花授粉的总苞形成率仅为 14 4 7% ,空棚率达 90 91% ,结实率仅 9 0 9% ;分别用玉屏大板栗、石丰、铁粒头、九家种等四个授粉品种为台江红油大板栗授粉 ,空棚率分别为 8 16 %、7 84 %、7 89%、6 38% ,结实率分别为 91 84 %、92 16 %、92 11%、93 6 2 %。
3.
To promote the yield of hybrid rice W 6154S /Zaoteqing,the setting percentage of this rice was studied from the angle of source and sink character and vascular bundle.
为进一步提高杂交水稻 W6 1 5 4 S/早特青的产量 ,从源库特征及维管束特性等方面对其结实率进行了研究 。
4) Seed-setting rate
结实率
1.
Effect of air temperature on the seed-setting rate of hybrid rice variety II You 718;
气温对杂交水稻Ⅱ优718结实率的影响分析
2.
The seed-setting rate and its relationship with source and sink by reducing source or sink were examined.
研究表明:品种间结实率差异显著,辽粳5号低于辽盐16号,辽粳454结实率最高;不同部位籽粒结实率不同,上部结实率高于中下部,一次枝梗的结实率比较稳定,中下部二次枝梗的结实率较低;减源处理后,辽粳5号结实率下降最明显,辽盐16号居中,辽粳454次之;减库处理后,辽粳5号、辽盐16号结实率最高,而辽粳454略有下降;剪去剑叶,辽盐16号、辽粳5号结实率下降明显;相反,剪去一半倒二叶和倒三叶,则有利于其结实率的提高。
3.
The results indicated that the low temperature in booting stage had a great effect on decreasing the seed-setting rate, resulting in decrease of grain yield, but it had not much influence on the traits of effective panicles, spikelets per panicle and grain weight.
孕穗期低温主要通过影响籼型杂交水稻结实率导致产量降低 ,对有效穗、每穗粒数和粒重无明显影响。
5) Seed setting rate
结实率
1.
Preliminary study on seed setting rate for high temperature response of hybrid rice;
杂交籼稻结实率的高温响应研究初报
2.
The causes and settling method of low seed setting rate of platycodon grandiflorum by self-pollination;
桔梗自花传粉结实率低的原因及其解决方法
3.
Using four widly used hybrid rice combinations,namely,Shanyou 63,Gangyou 725,II You 838 and Q You 6 as test material,the effect of spikes layer natural high temperature on seed setting rate was studied by the way of split seeding in high temperature frequently occur place of Chongqing low elevation area.
结果表明:结实率与开花前1 d、当天和开花后1 d的日间高温呈极显著负相关,其中开花当天高温的影响最大,其次是开花前1 d,开花后1 d的影响相对较小;开花前后连续3 d平均高温对结实率的影响更能反应品种结实期耐高温能力;品种间耐高温能力差异主要表现在对开花后1 d高温的抵抗力;要正常结实(>80%),耐高温型杂交组合应低于34。
6) seed set
结实率
1.
Pollination rates and seed set in Salvia Miltiorrhize Bge.;
药用植物丹参的传粉效率和结实率的研究
2.
2 diploid and 29 autotetraploid rice(2n=4x=48)parental materials,including 4 preliminary and 25 advanced generations,were investigated for seed set characters.
与二倍体对照相比,同源四倍体材料的花粉育性、结实率均不同程度下降,尤其低代材料的花粉育性(59。
3.
They were surveyed in the performance of seed setting rate and grain plumpness (milled rice recovery of unwinnowed paddy) in different seasons of different years and they were also compared in grain yield with local hybrid rice checks.
利用空间诱变育成的粳型亲籼恢复系 ,分别与多个籼型不育系配组成杂交组合种植 ,连续 3a观测了同一恢复系与不同不育系配成的各组合和同一组合在不同年份、不同季节的结实率和籽粒充实度表现 ,并对一些组合进行产量比较试验。
补充资料：单性结实(parthenocarpy)