1) Grain number per spike
穗粒数
1.
The effects of the cultivation mode, nitrogen fertilizer rate and planting density have been studied on the dynamical change of the green leaf area, leaf area index, grain yield, average spike, the average grain number per spike and the distribution of grain number for different spike.
本研究以黄土高原南部半湿润农田生态系统中等肥力土垫旱耕人为土为供试土壤,冬小麦品种小偃22为试验材料,采用裂区田间试验设计,于2004～2006年研究了栽培模式、施氮量和种植密度对小麦生育过程中绿叶面积动态变化、叶面积指数、籽粒产量、穗数、穗粒数、千粒重的影响,同时研究了不同试验因子对不同穗位穗粒数分布、不同穗位千粒重、不同粒级粒重所占比例等方面的影响,以期为黄土高原南部干湿润农田生态系统冬小麦高产高效种植提供一定理论依据。
2.
Wheat grain yield is determined by three yield components, spikes per plant, grain number per spike and grain weight.
小麦产量由单位面积穗数、穗粒数和千粒重构成,其中穗粒数的增加是提高小麦产量的重要途径之一。
2) grain number
穗粒数
1.
Through years of survey and investigation of plot test and high-yielding cultivation, the grain number and spike of wheat were studied.
通过多年的小区高产栽培试验和高产攻关,对小麦的穗数、穗粒数进行了研究。
2.
The effect of abscisic acid (ABA) application on requlating grain number was examined using detached wheat ears in liquid culture.
利用离体穗培养方法研究了脱落酸（ABA）对小麦穗粒数的调节作用。
3) kernel number per ear
穗粒数
1.
The results showed that as the UV-B radiation prolonged,the SOD,POD and CAT activities in the pollens appeared to decline remarkably and the MDA content in them appeared to rise;In corn,the kernel number per ear was positively correlates with the activities of antioxidases,negatively correlated with the MDA content,and appeared to decrease with prolonged UV-B radiation wh.
在玉米散粉期,收集花粉进行UV-B辐射增强处理后进行人工授粉研究,结果表明,随着UV-B辐射时间的增加,玉米花粉的SOD、POD和CAT活性都呈明显下降的趋势,而MDA含量则呈相应上升的趋势;玉米每穗粒数与花粉抗氧化酶活性呈正相关、与MDA含量呈负相关关系,并随UV-B辐射时间延长呈下降趋势,且辐射超过2h后下降达到显著水平;玉米百粒重随UV-B辐射时间的延长明显下降,但辐射花粉1~2h对其无显著影响;UV-B辐射花粉对籽粒的可溶性糖、淀粉、脂肪及粗蛋白含量等营养成分无显著影响。
4) kernel number
穗粒数
1.
Nitrogen supply affected carbon-nitrogen(CN) metabolism in maize,then affected kernel number and yield.
结果表明,氮肥对玉米产量的影响主要体现在对穗粒数、穗粒重的影响上。
补充资料：数粒
1.指几粒米。晋张华《鹪鹩赋》:"巢林不过一枝﹐每食不过数粒。"后用作安于贫困生活之典。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条