1·The leave premature senescence will reduce chlorophyll content and shorten photosynthetic time, which further influence yield.
叶片早衰将引起叶绿素含量降低、光合作用时间缩短，进而影响产量。
2·"The real concern for agriculture is premature senescence and death induced by disease organisms and environmental stress," says Thompson.
“农业上对于这问题的真正顾虑是，因为疾病感染和环境因素引起的早衰性衰老及死亡。” 汤姆斯说。
3·Five short season cultivars (SSC) with no premature senescence were selected to cross with 5 SSC cultivars with premature senescence.
选用5个早熟不早衰的短季棉品种和5个早衰的短季棉品种进行部分双列杂交。
4·"The real concern for agriculture is premature senescence and death induced by disease organisms and environmental stress, " says Thompson.
“农业上对于这问题的真正顾虑是，因为疾病感染和环境因素引起的早衰性衰老及死亡。” 汤姆斯说。
5·Potassium deficiency lead to premature senescence of cotton is constraint China's cotton yield and quality of increase of the important factors.
缺钾及其导致的棉花早衰是制约我国棉花产量和品质提高的重要因素。
6·Phenomenon of premature senescence be serious, lodging percentage been decreased, ability of utilization and interception of light been decreased. 4.
由此可见，晚播处理早衰现象严重，倒伏的几率高，光能截获能力弱，光能利用率低。
7·To ascertain the causes of premature senescence and red leaf occurrence in different cotton varieties, and provide basis for reasonable disposal of varieties for cotton production.
明确不同棉花品种早衰发生情况及红叶的发生原因，为生产上棉花品种的合理布局提供依据。
8·Stay green is a drought resistance mechanism in sorghum. Genotypes with stay green give resistance to premature senescence and grain filling normally during the postflowering water stress.
持绿是高粱的一种抗旱机制，具持绿性状的基因型，在开花后遇水分胁迫时抗旱抗植株过早衰老，籽粒正常灌浆。