英语人>网络例句>slash pine 相关的网络例句
slash pine相关的网络例句

查询词典 slash pine

与 slash pine 相关的网络例句 [注:此内容来源于网络,仅供参考]

The apparent quantum yield and carboxylation efficiency of slash pine's half-sib were higher than that of general variety.

湿地松各半同胞家系1龄针叶在全年中以3至4月份、2龄针叶以4月份的表观光量子效率为最高,所有针叶以5月份最低,各家系1龄、2龄针叶的羧化效率以5月最低,8至9月最高。

After the antagonistic bacterica were cultured for two days, their culture exerted obvious inhibition on pathogenic fungi of Slash pine damping-off such as Rhizoctonia solani and Altemaria olternaia.

在培养2d后,其培养物对丝核菌和链格孢菌均表现出明显抑制效果,但对镰刀菌几乎没有抑制作用。

The results indicated as follows:the total nutrient elements accumulation of various Slash Pine stands amounted to 1273.83-1615.88kg/hm2,of which stem occupied about 60%. The nutrient retention accounted for 111.46-133.39kg/hm2*a,which is higher than that of either Chinese fir or Masson pine plantation. The nutrient return equalled to 90.43-105.09kg/hm2*a. Nutrient elementsturnover period is long while cycling rate is lower. The net production per ton needs 13.19-14.81kg nutrient.

结果表明:湿地松林分中养分元素总积累量为1273.83-1615.88kg/hm2,树干约占60%,积累速率为111.46-133.39kg/hm2*a,高于杉木和马尾松,归还量仅有90.43-105.09kg/hm2*a,其周转期长,养分循环速率低,每生产1t有机物需要上述养分元素共13.19-14.81kg。

As a excellent tree species in the Pinus pinaster, slash pine is provided with fine biological characteristics and economic value.

湿地松有有优良的生物学特性和经济价值,是松属中的优良树种。

Tu also the home town of Nao mu of slash pine and cedar base.

还有涂家垴镇的万亩湿地松、杉树基地等。

It was a great break in the breeding and offered an apparent increase to the propagation coefficient of the slash pine,which solved the scant supply of its seedlings.

这对于湿地松的育种是一个很大的突破,该方法显著提高了湿地松的繁殖系数,可以解决其苗木供应不组的问题。

Our results show that there were no significant difference in insect species and abundance between the massion pine forest and the slash pine forest.

通过对6种不同林分结构下的马尾松林和湿地松林内昆虫群落调查与多样性指数分析,表明2种松树内的昆虫种类和数量无显著差异,混交林中的昆虫群落的种类和数量比纯林多,尤其以捕食天敌类群的种类和数量更为明显。

Formosana from mason pine forest and slash pine forest.

马尾松和湿地松是我国南方的2种主要松树。

Classifying by genetic distance, we selected 5 greatly fastgrowing families and 10 less fastgrowing families, compared with Slash pine, whose genetic gains of volume are 44% and 14% respectively, and with Mason pine , whose genetic gains of volume are 197% and 14% respectively.

对家系的遗传距离进行了聚类分析,确定了5个极速生家系、8个较速生家系,其材积增益与湿地松相比分别为44%和14%,与马尾松相比分别为197%和136%。

The hybrid breeding between Slash pine and Caribbean pine in Guangdong Forestry Research Institute began from 1990s.

广东省林业科学研究院系统开展湿地松与加勒比松P。

第2/4页 首页 < 1 2 3 4 > 尾页
推荐网络例句

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。

In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).

在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。