摘要
通过对小麦根系活力及其灌浆关系的研究证明:小麦根系活力的变化过程是:前期小、中期大、后期又小。根系活力的大小与其各生育期的生长特点有关。小麦一生中根系活力有3次高峰,即拔节期、抽穗期和灌浆盛期。其中,抽穗期根系活力最大;小麦籽粒灌浆强度随根系活力的提高而增加,但是,不同处理之间略有差异;不同根层之间,根系活力具有补偿效应。其中,0～15cm内根系活力最强,对灌浆的作用最大。
The vitality of root system of winter wheat shows less change in former and later stages than that in the middle stage and the vitality is related to the growth feature in various growing stages. There are three peeks of the vitality in the whole life of wheat root system—drawing stage, earing stage and rapid filling stage. The vitality in earing stage is the strongest. Relationship between wheat filling and vitality of root system shows that the filling intensity increases with enhencingof the vitality of root system. There are compensative effects among different administ rative levels. The vitality of root system within 0～15 cm is the highest and has the best effect on wheat filling.
出处
《河南农业大学学报》
CAS
CSCD
1990年第2期269-274,共6页
Journal of Henan Agricultural University
关键词
冬小麦
根系活力
籽粒
灌浆
winter
wheat
vitality of root
system
grian
filling
thousandgrain weight
statislical analysis
