单株有效穗,Number of effective spikes per plant,音标,读音,翻译,英文例句,英语词典
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1)&&Number of effective spikes per plant
单株有效穗
2)&&panicle number per plant
单株有效穗数
3)&&Panicle number per plant (ES)
单株成穗数
4)&&The effective tillers per plant
单株有效分蘖数
5)&&number of productive ear
6)&&effective panicle
25 t/hm2 of variety restorered by SH527;in principal component analysis,the first principal component of variety restorered by SH527 is effective panicle and number of filled grain per panicle and the 3 factors of yield play important role together in yield.
25 t/hm2外,其余几个系列产量水平相当;在主成分分析中SH527系列品种的第一主成分因子是有效穗粒数因子,而产量构成因素三者与产量之间的直接通径系数相近,说明三者对产量的作用都相当,这说明当其穗粒数达到一定高度时,穗数因子又成为新一轮产量增长的限制因素。
补充资料：茶树单株选择
茶树单株选择
individual selection of tea plant
茶树单株选择(individual seleetion oftea Plant)茶树选择育种法之一。又称茶树系统选择或茶树个体选择，即从现有茶树群体品种或育种材料中，根据育种目标.选出一定数量的优良个体，分别进行扦插繁殖，然后通过品比试验，从而育成新的茶树品种的方法。单株选择方法简单，效果显著，是最常用的茶树育种方法。国内外许多茶树新品种，多数都是采用此法育成的。OQQ皿命。户。喊只
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茶树单株选择图式
由上至下:1.第l年从原始群体中选择优良植株2.第2~3年分株初步繁值，并继.续鉴定入选单株3.第3~10年比较试脸(右第1行为对照品种)，同时进行区城性试脸4.第10年以后良种繁殖推广
说明：补充资料仅用于学习参考，请勿用于其它任何用途。桂花(Osmanthus fragrans Lour.)属木樨科植物,是名贵的园林观赏花木,是香精工业、食品工业、药材工业、轻工业的宝贵原料。本研究中,笔者探讨了不同的土壤含水量对盆栽桂花幼苗的生长、水分、生理生化指标以及光合作用等方面的影响,以期为桂花的抗逆性栽培研究和干旱区移栽及扩大栽培范围等提供参考。本文以三年生橙红丹桂扦插苗为研究对象,采用温室土培方法,研究了干旱胁迫下桂花幼苗各项生理指标的变化,分析结果如下：(1)干旱胁迫对桂花各部分生物量生长有一定抑制作用,桂花幼苗的根冠比随着干旱胁迫加剧呈上升趋势,随着水分胁迫的加剧,根干重亦随之下降,叶片总面积、单叶面积和叶片数随之减少。干旱胁迫对苗高和地径生长有一定抑制作用,抑制程度随着干旱胁迫程度的增强而增强。(2)干旱胁迫对桂花叶片水分状况的影响,随干旱胁迫程度加剧和胁迫时间的延长,桂花幼苗叶片相对含水量明显下降：胁迫越重,下降幅度越大。SOD的活性在不同水分胁迫处理下都经历了上升——下降——上升——下降双峰变化曲线。POD在不同干旱胁迫的情况下经历上升——下降——上升的N形变化曲线,但不同干旱处理的峰值出现的时间有所不同。(3)桂花幼苗叶片可溶性糖在不同干旱胁迫下都呈现上升——下降的单峰变化曲线,且叶片中可溶性糖含量对干旱的反应较为敏感；桂花幼苗叶片游离脯氨酸含量总体变化趋势是先上升后下降,而Pro含量呈上升趋势；干旱胁迫导致桂花叶片的胞质膜透性增大,桂花幼苗叶片的丙二醛含量增大,叶片叶绿素a、叶绿素b含量均下降明显,而叶绿素a/叶绿素b出现上升的趋势。(4)随着干旱胁迫的加重,桂花叶片的光合速率逐渐降低,同时Cond和Trmmol均出现降低趋势,桂花叶片Ci变化呈不规律性,不过桂花叶片Ci与对照相比均有所降低。干旱胁迫下,桂花叶片Fv/Fm和Fv’/Fm’均呈降低趋势。干旱胁迫下桂花光合特性与叶绿素荧光特性部分指标之间有极高的线性相关性,除WUE与其他指标呈现负相关外,其他指标间都存在较高的线性正相关。
Osmanthus fragrans Osmanthus Lour.) (MuXi secco plant, of ornamental flowers and trees is rare, is essence industry, food industry, medicine industry, light industry and precious raw material. Relevant osmanthus research focuses on the breed classification, the biology habit and the flowering aging process change, the physiological and biochemical characteristics on environmental conditions on the influence of osmanthus fragrans physiological characteristics not seen reports. This paper explores the different soil moisture content on the potted osmanthus seedlings growth, water, physiological and biochemical indexes and photosynthesis, etc, in order to influence of osmanthus fragrans anti-reversibility of cultivation and arid transplanting and expand cultivated scope to provide the reference. Based on three years for cutting seedlings born hung orange the object of study, the buildup of greenhouse soil method, the osmanthus fragrans seedlings under drought stress changes of physiological indexes, the analysis results are as follows:(1) drought stress all parts of osmanthus biomass growth have certain inhibition, sweet-scented osmanthus seedling root-shoot ratio with drought stress intensifies shows ascendant trend, as water stress intensifies, root dry weight, leaf fall subsequently also area, leaves area and leaf number decrease. Drought stress on seedling height and diameter at growth have certain inhibition and inhibition degree with drought stress enhancement and enhanced.(2) drought stress on the influence of osmanthus fragrans leaf water status with drought stress, aggravating and intimidated the extension of time, sweet-scented osmanthus seedling the relative water content of leaves Stress is heavier, the decline. The activity of SOD in different under water stress processing experienced rise-decline-rising-changing curves. Drop petronas POD in different drought stress situation experience rise-down-to rise N form changing curve, but different drought processing spikes time different.(3) osmanthus seedling leaves soluble sugar under drought stress in different kept rising-decline, and changing curves showing the contents of soluble sugar content is sensitive to the Osmanthus seedling leaves free proline content overall trend is first after rising fell and Pro content s Drought stress the cytoplasmic caused osmanthus blade increases membrane permeability, osmanthus seedlings leaves malondialdehyde increases, chlorophyll a, chlorophyll b content decreased significantly, and chlorophyll a/chlorophyll b appear rising trend.(4) along with increasing drought stress, osmanthus leaf photosynthetic rate gradually reduced, at the same time Trmmol Cond and all appear to reduce trend, osmanthus blade Ci change regularity, but is not osmanthus fragrans blade Ci with contrast are greatly reduced. Under drought stress, sweet-scented osmanthus blade Fv/Fm and Fv ’/Fm’ are tending to reduce the trend. Under drought stress osmanthus chlorophyll fluorescence properties photosynthetic characteristics and is highly part index linear correlation between WUE and other indicators, except for the present negative correlation between, other indicators have higher linear positive correlation.
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