论文部分内容阅读
通过对向日葵现蕾期和开花期不同程度的水分胁迫盆栽试验,研究水分胁迫对向日葵的形态特征及产量的影响。初步明确了随着水分胁迫的加重,向日葵的株高、绿叶面积、地上生物产量等均有不同程度的降低。当水分为田间持水量的30.00%~35.00%时,白葵杂9号在现蕾期和开花期分别减产31.95%和41.17%,JK518在现蕾期和开花期分别减产24.08%和33.97%。
The effects of water stress on the morphological characteristics and yield of sunflower were studied by hydroponic pot experiments with different degrees during the budding and flowering stages of sunflower. Preliminary clear that with the aggravation of water stress, sunflower plant height, green leaf area, above-ground biomass production, etc. have different degrees of reduction. When the water content was 30.00% -35.00% of field capacity, Baikuiza 9 reduced yield by 31.95% and 41.17% respectively at budding and flowering stages, and JK518 decreased by 24.08% and 33.97% respectively at budding and flowering stages.