查询词典 photosynthesis

Plants need carbon dioxide and light to perform their photosynthesis process, so your tank is going to need to be well lit at least part of the day and may require the addition of an artificial carbon dioxide producer.

植物需要二氧化碳和轻履行其光合作用的过程，所以您的油箱将需要有良好的点燃至少有一部分每天可能需要增加一个人工二氧化碳生产者。

"The most common way to form light carbon on the modern Earth is photosynthesis," explained Dr Alexander Nemchin of the Curtin University of Technology, Australia, and another author of the paper.

在地球形成的初期，也许存在着轻碳形成的另外一种我们目前不知道的方式。

For instance, the rate of photosynthesis rises with increasing light intensity as long as there is sufficient carbon dioxide available, but at high light intensities carbon dioxide may become the limiting factor instead.

例如只要有足够的二氧化碳可利用，光照强度升高时光合作用的速率就会提高，但当光照强度过高时二氧化碳反而可能成为限制因子。

At flowering and milky stage the increased net photosynthesis rate in 10–50 mg/L ALA treatment was mainly due to the decrease of stomatal limitation, while at dough stage it was mainly contributed to the decrease of nonstomatal limitation caused by decreased photosynthetic capacity of mesophyll cells.

在开花期和乳熟期，ALA提高叶片的净光合速率主要是由于减少了光合的气孔限制；而在腊熟期则主要是由于减少了光合的非气孔限制。

The results showed that, in the period from anthesis to dough stage, photosynthetic rate and photosynthesis yield and relative electron transport rate of flag leaves, light transmission rate of population were improved by low seeding density cultivation, change trend of them among different wheat varieties were the same.

结果表明，在从扬花到蜡熟期，稀植栽培可使小麦旗叶光合速率、光合量子产量、相对电子传递速率和群体透光率提高，各品种之间变化较为一致。

The decreasing leaf and covering ear methodal was used to research the constitution of photosynthesis source and contribution of grain weight on flowering period of four kinds of winter wheat.

采用剪摘叶片、包穗方法研究了4个冬小麦品种开花期不同光合源构成及其对穗粒重的影响。

The increasing of cultivation density leaded to the decline of ear leaf physiological function and self-guard enzyme activity and eventually shortening leaf functional stage,decreasing its photosynthesis.

随着种植密度的增大，果穗叶光能转化和自身保护酶系活性下降，光合生产能力减弱，造成果穗叶生理功能早衰，缩短了叶片功能期。

The daily dynamics of photosynthetic characteristics of alfalfas grown for different lengths of time in the Loess Plateau were monitored using a Portable LI-6400 Photosynthesis System.

利用Li-6400型光合作用测定系统，测定了不同生长年限苜蓿叶片的光合参数。

Nutritional relationships = involve the transfer of nutrients from one organism to another within the ecosystem a autotrophs = organisms that can use inorganic materials to create their own food use : photosynthesis sfs : producers b heterotrophs = organisms that cannot make their own food and must eat other organisms to obtain nutrition asf : consumers or decomposers

营养关系=涉及转移营养从一个生物体转移到另一个地方生态一autotrophs=有机体可以利用无机材料，创造自己的食品使用：光合作用sfs：生产者乙heterotrophs=有机体，不能把自己的粮食，都要吃其它生物获取营养asf ：消费者或decomposers

Water chestnut: after photosynthesis, food from the aerial shoot is passed down to the base of the stem and stored at the daughter corms in the preparation for the next growing season.

在一个球茎的营养繁殖：光合作用之后，茎叶所制造的食物被输送到茎的基部，然后在贮藏在子球茎内，以预备下年度的生长。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。