種子發芽勢 的英文怎麼說
中文拼音 [zhǒngzifāyáshì]
種子發芽勢
英文
potentiality of seed- 種 : 種名詞（姓氏） a surname
- 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
- 發 : 名詞（頭發） hair
- 芽 : 名詞（植物剛長出來的可以發育成莖、葉或花的部分） bud; sprout; shoot
- 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
- 種子 : seed; semen; germ; grain; stock; spermo ; spermato ; gono 種子測定 seed testing; 種子處理 seed tr...
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This study was conducted to examine the interrelationship of 10 seed vigor traits in 12 wheat genotypes through variance, co - variance and path coefficient analysis, to determine broad - sense heritability, and to estimate genetic advance under selection. the genotypes showed significant difference for all traits, except for percentage of normal seedling. genetic correlation between conversion efficiency of seed reserve, electrical conductivity with other traits were not significant, showed that selection for any of them might be possible without hampering any other traits. however path coefficient analysis indicated that conversion efficiency of seed reserve, seed reserve utilization ratio have strong direct effect in affecting seedling weight, and that mean germination time has significantly negatively correlated in affecting gi. moderate to high estimates of broad - sense heritability, genetic coefficient of variation and expected genetic advance were obtained for electrical conductivity, germination index, mean germination time, seed dry weigh, seedling dry weigh, seed reserve depletion ratio indicating the possibility for improving these traits
本研究利用12個普通小麥品種對10個種子活力性狀的遺傳變異和相關研究，表明除正常幼苗百分率外，其餘種子活力性狀在品種間均存在顯著的差異.種子貯藏物質轉換效率、電導率兩個性狀間及與其它性狀均無顯著的遺傳相關，因此對他們的選擇不會影響到其它性狀.通徑分析表明幼苗干重主要取決于種子貯藏物質轉換效率、種子貯藏物質利用速率;發芽指數主要由平均發芽時間決定.電導率、發芽勢、幼苗干重、種子干重、發芽指數、種子貯藏物質消耗比率6個性狀表現中到高的遺傳力、遺傳變異系數和相對遺傳進展，指明通過遺傳育種手段改良這些性狀是可能的The accumulating process of the very two main active phytochemical diterpenoids, andrographolid and m - dcoxy - 11, 12 - didehydroandro - grapholide, had been studied and analyxed, and the results conclude that the best harvest time is the florescence, or earlier florescence of ap
（三）種子實驗從種子凈度、種子千粒重、種子含水量、發芽率、發芽勢、紅四氮唑法測定種子活力等六個方面考察種子的優良度。Our results provided direct evidence that pf40 gene play a role in the tissue development, with knockout this gene the lateral buds were not visible. the plant hormones auxin and cytokinin appear to play a major role in controlling this process, therefore, the concertrition of auxin and cytokinin was measured, however, the concentration of the two hormone was variation a little in transgenic plants, but the ratio of the two was more than 5 fold in the pf40 gained function plant than that in wild type. furthermore the pf40 gene effected differentiation of the vascular bundles in different transgenic plants, results showed the pf40 could change both xylary fibers and vessel
進一步的實驗發現pf40基因會影響植物側芽發育的早期，即pf40基因作用在側芽形成與發育的早期。對轉基因穀子的組織切片的分析還表明pf40基因引起不同形式的轉基因穀子的維管組織的發育的差異，轉化正義載體穀子的木質部變多，維管系統增多，而反義或干擾的轉基因穀子的木質部數量變少，木質部分化異常。從轉基因的結果可見pf40基因可以減弱植物的頂端優勢，這種作用是通過改變植物體內激素的含量實現的。The test results in the no - tillage fields with corn rootstalks shown that the sample machine has a good ability to cut and dig corn rootstalks only in the seed beds so that the new no tillage planter can create a good condition of seed bed and have lower power consume. 2 system experiment is conducted to investigate the mechanical properties of rootstalks and soil rootstalk composite. the experiment results include : ? he maximum cutting force decreased exponentially with increasing cutting speed and the moisture contents of rootstalks
通過對新型免耕播種機的田間生產試驗，證明了切挖處理播種帶玉米根茬原理可行，所開發的機具結構新穎，具有創新性；該機不但能創造無根茬的良好種床條件，有利於種子生長發芽，而且不需大量粉碎根茬，因而擾土量少、整機消耗動力小、破茬入土能力強，有利於充分發揮保護性耕作的優勢。The results showed that among the range of 15 ~ 25, the seeds had better germination at lower temperature, while the percentage germination and germination energy went down prominently when the temperature was higher than 25, and the seeds were dormant when the temperature was 35
結果表明：在15 ~ 25范圍內，溫度越低，種子發芽質量越高，溫度高於25時，發芽率、發芽勢顯著下降，到35時，處于休眠狀態。分享友人