日均温

结果表明：影响1103S春繁产量的关键是育性转换温度敏感期内的环境温度，此间日均温高于23.5℃的时间愈多，产量愈低。

The results showed that the key factor influencing seed reproduction yield of 1103S was the environmental temperature during its temperature sensitive stage of fertility change . During this stage the more the days of daily mean temperature > 23.5 ℃, the lower the seed reproduction yield .

在一定温度范围内，抽穗&成熟天数与此期间日均温呈极显著负相关。

Under certain temperature ranges , the days between heading and maturity had significant negative correlation with daily mean temperature .

芽变103S的花粉育性转换温度指标为日均温25℃左右，在超标温度下持续3d以上花粉育性才可彻底转换。

The temperature index for fertility transformation was about 25 ℃ of day average , while continued higher temperature of more than 3 days was needed for complete fertility transform .

苗期日均温（AT）是影响NAR，CGR的主要因素，AT在12～26℃范围内，提高温度，可提高NAR和CGR；

In seedling stage , the average daily temperature ( AT ) was the major factor affecting NAR and CGR . In the range of 12 ~ 26 ℃ of AT , At rises , which is favourable for NAR and CGR rising .

结果表明：501-8S是温度敏感型雄性不育系，属高温不育类型，日均温在12.5~17.5℃育性发生转换，光照长度对其育性无明显影响；

The character of fertility transformation of 501-8S was thermo-sensitive , showed male sterility in high-temperature . The temperature of fertility transformation was between 12.5 ℃ and 17.5 ℃; The photoperiod had no obvious effect on the fertility transformation .

日均温是影响这两个阶段的主要因子。

In these two stages , the daily mean temperature was essential .

我国最冷日期及其日均温分布特征的气候分析

The climatic characteristics of the coldest date and their average temperatures in China

夜间温度对纤维伸长的影响大于日均温。

Night temperature showed larger influence on fibre elongation than daily average temperature .

出蛰期与日均温的关系密切。

The emergence time was closely related to the daily average temperature . 2 .

高垄平台耕作法还可以降低土壤水分，提高土壤日均温。

The high-ridge and platform farming could decrease soil moisture and improve the average temperature of soil .

抽穗前26-18d平均日均温与自交结实率的相关达极显著水平。

Significant correlation was observed between the average daily temperature of 26-18 d before heading and the self-seeds rate .

结果表明，水稻齐穗后15天的日均温是影响稻米垩白大小的主要气象因子。

Results show that mean daily temperature in 15 days after rice full heading is the main factor affecting rice chalkiness .

随着灌浆期日均温的升高以及日较差的增大，蛋白质含量与沉淀值的相关系数减小；

The correlation index between protein content and sedimentation volume decreased with mean temperature and daily temperature difference increasing during grain filling .

抽穗～成熟，在适温范围内，其天数与平均日均温呈极显著负相关。

Under optimal range of temperature , the days between heading and maturity also showed a very significantly negative correlation with average daily temperature .

春播制种开花期在日均温为13～20℃的范围内，母本结实较正常；

Dering average temperature within 13-20 ℃ in the flowering period for Seed produetion in Spring , the bearing rate of the maternal parent was more normal .

随着孵化的进行，卵的日均温从319℃上升到362℃，与环境温度的变化呈正相关。

The average daily egg temperature increased from 31 9 ° C to 36 2 ° C as the incubation advanced , following the increase in air temperature .

在五天平均日均温13.6℃的情况下，死叶率比湿育秧减少15.7%～16.9%；

When average dairy temperature of five days was 13.6 ℃, the rate of dead leaves of dry-raised seedlings was reduced by 15 . 7 % ~ 16.9 % than that of wet-raised seedlings .

不同品种及不同性状对温度的反应不一样，品质较好的品种受结实期日均温的影响要小于品质较差的品种，糙米率、粒长、G。

Different varieties or characters answer for change of temperature independently , varieties of better quality have a little transformation with the change of temperature than varieties of worse quality . Brown rice yield , length of grain and G.

影响比强度的气候因子主要是日均温、累积降水量和相对湿度，影响麦克隆值的气候因子主要是日均温和累积降水量或夜均温、累积降水量。

The daily mean temperature , cumulative rainfall and relative humidity are main factors affecting fiber strength , and the daily mean temperature , cumulative rainfall or the night mean temperature , cumulative rainfall are main factors affecting micronaire value .

随纤维发育横向晶粒尺寸逐渐增大，相同铃龄随温度下降晶粒尺寸值降低，横向晶粒尺寸值与铃龄及全铃期日均温呈曲线关系，且相关显著。

Crystalline grain size increases with fibre development , but tends to decrease with temperature dropping at the same boll period . Crystalline grain size has significant curve relationship with boll period and DMT , NMT of whole boll development period .

结果表明：在各温度因子中，光期温度在育性转换中的作用最大，其次为日均温，在一定的范围内，花粉可育率随光期温度的升高而增加；

The results showed that light temperature played the most role in fertility change followed by daily mean temperature among all kinds of temperature factors . The rate d pollen fertility increased as light temperature increased in a certain temperature range .

在抽穗至成熟期间，千粒重与平均日均温呈负相关，与平均日最高温度呈极显著的负相关，而与平均昼夜温差呈极显著的正相关。

From heading to ripening , the thousand-grain weight and the mean of average day temperature showed negative correlation , and the average of day highest temperature showed very notable negative correlation , but with the average temperature differences between days and nights showed very notable positive correlation .

海拔每升高100公尺，日均温降低0.94℃，产量每亩提高24.4&26.5斤，千粒重增加0.92克，植株高度增长3.5厘米。通过方差分析初步确定，夏播小麦适宜的海拔高度在1200公尺以上；

It was known that the elevation goes up every 100 metres , the average diurnal temperature lowers 0.94 ° C , the yield per-mu increased 24.4 to 26 . 5 jin , The weight of 1000 seeds increased 0.92 gram and the plant grew 3.5 cm higher .