冬小麦抗旱品种生态特点及生理特性研究

本文利用三个干旱年度的自然条件,鉴定了抗旱品种在生态和生理方面的特征、特性,并测算了根的伤流量、叶片结构和水分生理等几个主要农艺性状与抗旱性的相关系数,以及干旱胁迫对单株分蘖、成穗、籽粒产量和抗旱指数的影响,为进一步挖掘旱作农业技术潜力提供依据。

STUDY ON THE ECOLOGICAL AND PHYSIOLOGICAL CHARACTERS OF DROUGHT-RESISTANT VARIETIES OF WINTER WHEAT

Through three years of nature dry condition, we have appraised the ecological and physiological features and characters of drought-resistant varieties, and have calculated the correlation coefficients of the root's wound flows, the structure of leaves, supersession of water etc, to the drought-resistance. We also have measured the influence of dry corerce to the tillerings, the hands and the granin output of a single plant. These results can prvide soientific basis for further taping the latent power of dry farming agrotechnique.