吉林农业科学
吉林農業科學
길임농업과학
JOURNAL OF JILIN AGRICULTURAL SCIENCES
2001年
1期
8-13
,共6页
谷子%生理特性%光合速率%叶绿素%14C同化物
穀子%生理特性%光閤速率%葉綠素%14C同化物
곡자%생리특성%광합속솔%협록소%14C동화물
分析了谷子的主要生理性状。结果表明:叶片和叶鞘的叶绿素含量以高肥、稀植含量高;生育时期以灌浆期含量高;单叶以剑叶、倒2叶含量高。有效光合速率以开花期最大,剑叶光合速率最高。蒸腾速率表现为开花期最大,单叶以倒2叶最大。气孔导度和细胞间隙CO2浓度以抽穗期值较大,倒2叶值最大。有效光合速率与千粒重、成粒重呈极显著正相关。气孔导度与穗码数关系密切,细胞间隙CO2浓度与成粒重呈显著正相关。14C代谢表明,植株各器官均有同化能力,叶片光合功能最强,同化物运往子粒最多,说明子粒是储存中心,而且在子粒形成期谷子具有“顶端定向供应”的特点。14C同化物从叶片输出最多,叶鞘在抽穗期以储存为主,灌浆期大量输出达97.25%。
分析瞭穀子的主要生理性狀。結果錶明:葉片和葉鞘的葉綠素含量以高肥、稀植含量高;生育時期以灌漿期含量高;單葉以劍葉、倒2葉含量高。有效光閤速率以開花期最大,劍葉光閤速率最高。蒸騰速率錶現為開花期最大,單葉以倒2葉最大。氣孔導度和細胞間隙CO2濃度以抽穗期值較大,倒2葉值最大。有效光閤速率與韆粒重、成粒重呈極顯著正相關。氣孔導度與穗碼數關繫密切,細胞間隙CO2濃度與成粒重呈顯著正相關。14C代謝錶明,植株各器官均有同化能力,葉片光閤功能最彊,同化物運往子粒最多,說明子粒是儲存中心,而且在子粒形成期穀子具有“頂耑定嚮供應”的特點。14C同化物從葉片輸齣最多,葉鞘在抽穗期以儲存為主,灌漿期大量輸齣達97.25%。
분석료곡자적주요생이성상。결과표명:협편화협초적협록소함량이고비、희식함량고;생육시기이관장기함량고;단협이검협、도2협함량고。유효광합속솔이개화기최대,검협광합속솔최고。증등속솔표현위개화기최대,단협이도2협최대。기공도도화세포간극CO2농도이추수기치교대,도2협치최대。유효광합속솔여천립중、성립중정겁현저정상관。기공도도여수마수관계밀절,세포간극CO2농도여성립중정현저정상관。14C대사표명,식주각기관균유동화능력,협편광합공능최강,동화물운왕자립최다,설명자립시저존중심,이차재자립형성기곡자구유“정단정향공응”적특점。14C동화물종협편수출최다,협초재추수기이저존위주,관장기대량수출체97.25%。
Studies on plant type characters,physiologies were made in different millet varieties under field and pot groun conditions.The main results are as follows:chlorophyll of leaf and leaf sheath was higher in and the second leaves.Photosy thesis of flag leaf was high.Transpiration,stomatal conductance and CO2 between cells of the second leaf were large.Close relationships were found between photo_sythesis,1000_grain weight and weight of full grain.The14C_matter analysis showed that there were assimilation actions in all green parts.The photosynthesis of leaf was the biggest.The assimilation matter exported to grain was high(65.60%).The14C_assimilation matter of leaf had more contribution to grain.The leaf sheath stored dry matter in heading.Leaf sheath exported dry matter(97.25%)in filling.