结实率

在短日照季节，自然结实率达50%以上。

In shortday season , the natural seed setting rate reached 50 % or more .

结果表明：15个数量性状的变异系数（CV）范围在4.6%（结实率）和33.7%（单株产量）之间。

We found that , among the 19 traits studied , the coefficient of variation of 15 quantitative traits ranged from 4.6 % ( seed setting rate ) to 33.7 % ( yield per plant ) .

结果表明，C药剂的诱导结实率最高；

Results showed that durable rate induced by C medicament is the highest .

两个广亲和品种的杂交后代（轮回422×02428），育性明显提高，F2结实率低于60%的单株很少，F3群体育性已基本正常。

The fertility in F_3s was higher than that in F_2 plants .

辐射处理离体培养有提高R2代分蘖、有效穗和结实率的效应。

In the second generation , γ & rays increased the tiller number , fertile spike and seed rate .

紫外线UV-B增加对小麦开花及结实率的影响

Effects of Enhanced UV-B Radiation on the Flowering Process and Seeding of Wheat

推测不同的Bt基因对水稻结实率和温度适应性的影响程度是不同的。

So we speculated that different Bt genes had different effects on the seed setting rate and the temperature adaptation .

生物量和结实率的相关系数（r）为0.0578，表明在旱作条件下生物量的大小与结实率高低无关。

The correlation between biomass and seed set rate was 0.0578 , which was not significant difference , indicating that the germplasm with big biomass may not possess high seed set .

在Cd胁迫下产量降低的原因主要在于穗数或每穗颖花数的减少，Cd对结实率和千粒重无显著影响。

The decrease in grain yield under Cd stress was mainly attributed to the reduction in the number of panicles or / and number of spikelets per panicle .

以单倍体作母本，普通二倍体作父本杂交，共得到杂交种子68粒（异交结实率为0.12%-0.68%），试管培养得到21株F1。

Haploid as maternal parent was crossed with common diploid , and 68 seeds were gotten ( the cross seed setting frequency were 0.12 % - 0.68 % ) .

用福鼎大白茶等11个品种为材料，通过测定花粉生活力及作杂交亲本组合试验，观察其结实率、F1出苗率和茶苗生长势，对茶树的孕性进行了研究。

The fertility of tea plant has been investigated on 11 tea varieties by determining the pollen viability , fertility rate , emergence rate and growth vigor of F_1 generation .

杂交水稻W（6154S）/早特青结实率的研究

Setting Percentage of the Hybrid Rice W _ ( 6154S ) / Zaoteqing

穗位低于20cm，穗较短，结实率低；

Main ear is short and the rate of fruit is low below 20cm ;

对农艺性状的分析认为，DH株系的广亲和性与株系本身的自交结实率和脱粒性没有联系。

Interestingly , the wide compatibility of DH line had no correlation with self-pollination seed-setting percentage and seed threshing ( Table 3 ) .

结果表明：花粉离体培养后萌发率随EMS浓度的增加而降低，并与处理当代的结实率呈正相关；

The results were as follows : Pollen germinating rate decreased with the increasing of EMS treatment concentration , and showed positive correlation with seed setting percentage ;

自主结实率比CK（SSA-1）提高87.8%。

Free setting ratio increased 87.8 % than that of CK ( SSA-1 ) .

在产量构成因子中，NAP、PYR对每盆穗数和结实率的影响最为明显。

NAP and PYR have the most significant influence on spikelets per pot and seed setting percentage of the component of yield .

Cd处理后每盆穗数和每穗颖花数减少是减产的主要原因，结实率和千粒重在Cd处理与CK间无显著差异。

The reduction in grain yield was mainly attributed to the reduction in panicles per pot and spikelets per panicle . The differences in seed-setting rate and 1000-grain weight were not significant between the Cd treatment and CK .

冷灌开始时期越早或冷灌时间越长，颖花退化越严重（如冷灌20d的达25.5%），结实率也降低。

The longer the cold water irrigation or the earlier the treatment start , the more the degenerative spikelets .

该时期产量、结实率、粒重与根系和籽粒Z+ZR、ABA显著正相关，与根系IAA及其相对值显著负相关。

The yield , grain filling and grain weight were significantly positive correlated with Z + ZR and ABA concentration in roots and spikelets , and significantly negative correlated with IAA concentration in roots .

A.nuda×A.sterelis杂交（48朵小花），获得1个幼胚和4粒种子，杂交结实率10.4%，F1自交结实率48.1%。

One embryo and 4 seeds with seed setting rate of 10.4 % were obtained . The rate of fertility of F 1 plants was 48.1 % . The wild type characteristics of A.

6叶龄20d短日照处理对籼稻品种南农大的穗粒数和结实率的影响最小。

Effect of short-day treatment on NSO and SSR of indica rice was lest in 6 leaf age for 10 days .

结实率是影响穗重型水稻（V7）产量的主导因子，施氮时期对其结实率影响差异显著，对千粒重影响差异不显著；

Seed rate is the leading factor of big-spike rice ( V7 ), whereas 1000-grain weight is the leading factor of multiple - spike rice ( V10 ) .

其中以NAA，6-BA，2,4-D等生长物质处理，对克服花粉萌发后的障碍，延长花器寿命，和提高结实率有明显的效果。

The results indicated that NAA , 6-BA and 2,4-D could successfully overcome obstacles after germination of the pollens . prolong the life-span of the flowers and elevate the seed set percentage .

leucantha杂交的平均结实率为0.75%。

Leucantha as male crossed with sweetpotato had a mean seed set of 0.75 % .

结果表明，水稻结实率表型值及其在F3家系群中的分布以及所检测到的QTL数目因生长环境不同而有较大差异，说明QTL与环境有明显的互作效应。

The value of seed setting rate and its distribution in F_3 lines and the number of detected QTL were significantly different due to different growing environments , indicating the interaction between QTL and environment significantly .

在Leica万能显微镜下观察了小麦花粉管的发育过程，以及在小麦花期不同间隔时间去雄后调查结实率。

Observed the growth course of the wheat pollen tubes on leica multiple-microscope and investigated the seed setting rate in different treatment of stigmas excised after self-pollination .

其中与粳型恢复系9512组配的F1穗大粒多，结实率高，优势非常明显，具有进一步开发利用的潜力。

Among F 1 hybrids between 064A and different restorer lines , the F 1 hybrid of 064A and 9512 , a japonica type restorer line had large panicle with high fertility and great potential for utilization in production .

结果表明：田间3个F1组合的套袋结实率为10%~70%，平均约为50%，与花粉染色率相当。

The results demonstrated that self-fruitful ratio of F-1 populations of three cross classifications were 10 % - 70 % , the average being 50 % , which were equivalent to the rates of pollen stained with 1 % I_2-KI .

杂交试验表明，出发菌株IM02、突变株A1与金针菇单核菌丝IS02均形成了锁状联合。碘液染色检查发现绝大多数花粉不育，并与该突变株的低结实率一致。

The authenticity of the mutant strain was confirmed by the hybridation test . When staining with iodic solution , most of the pollens showed sterility , which was in consistence with the low setting percentage of the mutant plant .