
發芽率
The seed germination percentage was at the high level when seed moisture content was in range of 47%– 60%, which suggests that this was the optimum moisture content for maintaining A.
當種子含水量為47%–60%時,種子發芽率較高,說明這一含水量區間有利于種子生活力的保持。
Germination percentage of crisp lettuce seed could be maintained economically and effectively by using the suitable original moisture content, storage temperatures and package methods.
運用適當的種子起始含水量、貯藏溫度和包裝方式,可經濟有效地保持種子的發芽率。
By comparison with seed weight , germination percentage, germination trend, seedling shape and chromosome, it is concluded that the difference between hybrids and the parents are significant.
通過種子重量、種子發芽勢、發芽率、幼苗形态及染色體比較,雜種與親本差異明顯。
Compared with paper bed, sand bed could increase germination percentage by reducing seed mildew and roting.
沙床與紙床相比,沙床可減輕甚至消除種子黴爛現象,從而提高種子的發芽率。
In this experiment, effects of artificially aged radish seeds on germination percentage, germination indices, enzyme activities and protein contents were analyzed.
研究了人工老化引起的蘿蔔種子發芽率、發芽指數、蘿蔔生長早期一系列酶活性和蛋白質的變化。
In order to improve the germination percentage of Victoria amazonica seeds, experiments were conducted for the relevant factors which affect the sprouting of seeds.
為了提高王蓮種子發芽率,對影響種子萌發的幾個相關因素進行了試驗研究。
With the temperatures keeping growth and the time extending, pollen vitality, pollen germination percentage and seed setting rate suffered a sharply decline.
隨着脅迫溫度的升高和時間的延長,供試品種花粉活力、花粉萌發率和結實率都急劇降低;
The mathematical models that was made up of germination percentage and accumulated low temperature could accurately simulate the percentage of rice seedling planting.
由種子發芽率與低溫累積量組成的回歸模式,能較精确地模拟成秧率。
To compare with parents, the mutation plants' vigor of pollens, germination percentage of pollens, and length of pollen tube were investigated.
本試驗中對突變株及其親本的花粉活力、花粉萌發率、花粉管長度進行了研究。
Germination percentage and germination rate of seeds and early seedling growth produced by germinating seeds were increased by removing seed coat and by partially excising cotyledons.
除去種皮和切除部分子葉能提高種子的萌發率、萌發速率,以及種子萌發後的早期幼苗生長量。
Sclerotia could germinate in 0.05% glucose solution, distilled water and water agar, and the germination percentage is the highest in 0.05% glucose solution.
菌核在0.05%葡萄糖溶液、蒸餾水、水瓊脂上均可萌發,以0.05%葡萄糖溶液萌發最好。
The results showed that the seed germination percentage, germination index, dehydrogenase and acid phosphoesterase activity decreased in the process of ageing.
結果表明:在自然和人工老化過程中,種子發芽率、發芽指數、脫氫酶和酸性*********酶活性降低;
It was found that this culture model was better than the general sowing mode on sowing amount, germination percentage, tillering rate, lodge and yield.
結果表明:該栽培模式播種量、發芽率、分蘖率、倒伏情況及産量均比常規播種方式好。
The germination percentage, germination potential and germination indexes can obviously be increased through the treating the seeds of Leaf-beet and root-beet with H 2O 2.
雙氧水浸種處理葉甜菜和根甜菜種子,可明顯提高種子的發芽率、發芽勢及發芽指數。
After 72 hours, vigor was basically bletermined, the germination percentage declined about 5%.
老化72小時後,種子基本喪失活力,發芽率降到5%左右。
Only those seeds appeared the high germination percentage by the cold stratification.
隻有通過低溫層積處理過的種子才出現較高的發芽率。
Result:Germination percentage was the primary indicator of seed quality grading, thousand-grain weight, cleanliness and moisture content were important reference indicators.
結果:發芽率是烏拉爾甘草種子質量分級的主要指标,千粒重、淨度和含水量是質量分級的重要參考指标。
Pollen germination percentage after storage showed a tendency of drop-rise-drop.
花粉貯藏後發芽率表現為下降—上升—下降的大體趨勢。
The changes of germination percentage, fatty acid value and viscosity of paddy with the changes of time and temperature in the storage condition of different temperatures are investigated.
探讨了在不同溫度的儲藏條件下,稻谷的發芽率、脂肪酸和粘度等指标隨着時間和溫度的變化情況。
The germination percentage and water potential of stress solution(PEG) were positively correlated.
本試驗結果表明,種子發芽率與外界水勢呈正相關;
Treatments with moist sand and high temperature on the seeds of Actinidia chinensis could break their dormancy and evidently raise their germination percentage.
猕猴桃種子具有休眠特性,采用濕砂、高溫處理可打破其休眠,明顯地提高種子發芽率。
During imbibition and germination, germination percentage and the content of soluble sugar in Chinese wampee seeds increased, the content of starch in seeds decreased.
黃皮種子在吸水萌發過程中,種子的發芽率和可溶性糖含量增加,澱粉的含量下降;
The results showed that germination percentage and germinating energy had increasing trend by 5% diniconazole micro powdered seed coating chemical.
試驗結果表明,5%烯唑醇微粉種衣劑對玉米的發芽率、發芽勢有提高的趨勢。
The same treatment also increased the germination percentage of Seca Stylo from 9% to 85%, and decreased the time of germination from 30 days to 7 days.
同樣處理可使灌木狀柱花草種子發芽率由9%提高到85%,發芽所需時間由30天減少至7天。
High selfing depression occurred in the germination percentage and in the seedling height.
種子場圃發芽率及苗高的自交衰退非常嚴重。
There was not distinctive difference on pollen viability and germination percentage between blooming florets and those near blooming in same inflorescence.
同一花序上正在開放與接近開放的小花,其花粉的活力和萌發率無明顯差别。
Thats important to grain seed, orinfluence germination percentage.
這對種子用谷粒尤為重要,否則影響其發芽率。
The dormant spores of the fungus had the highest germination percentage(75%) in the root exudate of the susceptible host.
該菌休眠孢子在感病寄主的根分泌物溶液中萌發率最高,達75 %。
The basidiospore germination has been obtained by the liquid culture with 10—20% sporophore extract. The germination percentage is about 8—15%.
對擔孢子的研究表明,它能在10—20%的靈芝子實體水抽提液中萌發,頻率為8—15%。
Germination Percentage(發芽率)是種子科學和農業生産中的核心指标,指在特定環境條件與時間範圍内,種子成功發芽的數量占測試種子總數的百分比。其計算公式為:
$$
text{發芽率} = left( frac{text{正常發芽種子數}}{text{供試種子總數}} right) times 100%
$$
該指标反映了種子的活力與播種質量,直接影響作物産量和經濟效益。例如,若100粒種子中有85粒正常發芽,則發芽率為85%。
在實踐應用中,發芽率需依據國際種子檢驗協會(ISTA)或各國農業标準(如中國國家标準GB/T 3543)進行檢測,通常涉及恒溫、濕度控制等實驗室條件。高發芽率種子可減少補種成本,提升資源利用率,因此在種子貿易、種植規劃中具有重要參考價值。
權威機構如中國農業科學院指出,發芽率受種子成熟度、貯藏條件及病蟲害等因素影響,建議結合發芽勢(初期發芽速度)綜合評估種子質量。美國農業部(USDA)亦強調,該指标是品種選育和抗逆性研究的基礎數據之一。
參考來源:
Germination Percentage(發芽率)指在一定條件下,種子發芽的數量占測試種子總數的百分比,用于衡量種子的活力和萌發能力。以下是詳細解釋:
概念:發芽率通過統計發芽種子數與總種子數的比值,以百分比形式呈現,計算公式為: $$ text{Germination Percentage} = left( frac{text{發芽種子數}}{text{總種子數}} right) times 100% $$ 例如,100粒種子中有85粒發芽,發芽率為85% 。
應用場景:常用于農業、植物學研究,評估種子質量、環境條件(如溫度、濕度)或化學物質(如重金屬、農藥)對發芽的影響。
如需更全面的定義或實驗方法,可參考植物學教材或農業标準(如ISTA國際種子檢測協會指南)。
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