有效分布系數(shù) effective distribution coeefficient; effective distribution coefficient; efficiency distribution coefficient; efficient distribution coefficient
The results showed that salinity - alkalinity stress postponed the beginning time of the first tiller , reduced by 50 % of tiller number and effective tiller number 結(jié)果表明:鹽堿脅迫推遲了一次分蘗的時間,降低了水稻分蘗數(shù)和有效分蘗數(shù)約50 % 。
In this experiment germination rate , stalk height , spike length , weight of thousand grains , quality of wheat and so on , were observed and compared under various petroleum concentration in soil 實驗中采用不同含油濃度,分別對小麥的出苗率、有效分蘗數(shù)、株高、穗長、千粒重及品質(zhì)進(jìn)行了觀察比較。
Tillering and earbearing characteristics of wheat varit ies “ miannong 4 " and “ miannon 3 " were studied under three densities . the results indicated that t he two varieties had medium tillering speeds and tillering numbers , and their t illering number under medium density was 3 . 7 tillers per plant , which is less th a n that of “ mianyang 11 " , a popular wheat variety in sichuan in 1980s . their perc en tage of earbearing was about 55 % , which is also lower than that of “ mianyang 11 " 在3種密度下對綿農(nóng)4號、綿農(nóng)3號的分蘗及成穗特性進(jìn)行了初步研究,結(jié)果表明:綿農(nóng)4號、綿農(nóng)3號的分蘗速度和分蘗力皆為中等,中等密度條件下,有效分蘗期每天可形成0 . 15蘗,各期總蘗數(shù)為3 . 7左右,低于綿陽11號;與綿陽11號分蘗速度的差異主要在有效分蘗期;綿農(nóng)4號、綿農(nóng)3號的成穗率為55 %左右,低于綿陽11號;但分蘗和主穗的差異較小,分蘗穗重占主穗重的80 %左右,莖蘗穗重變異系數(shù)15 %左右,穗子大小均勻一致,小穗相對較少,小穗較大,這些性狀都優(yōu)于綿陽11號。