CAJ | 학술논문

选择1年生黄连木实生苗为试验材料，人工设置4种不同的土壤水分环境，测定幼苗的光合和生理生化指标，分析其对不同水分环境的响应规律。结果表明：不同土壤水分条件下黄连木幼苗的光合速率呈现不同的变化情况，7、9、10月份均表现为70％～60％土壤持水量处理最高，植物气孔导度变化与植物光合速率变化呈正相关；4种处理叶绿素质量分数均先升后降，在8月份达到最大值，但90％～80％土壤持水量处理下叶绿素质量分数最高；苗木根、茎、叶中游离脯氨酸、可溶性糖质量分数在70％～60％土壤持水量处理下最为稳定，其余3个处理均呈现不同程度的上升趋势，且对于胁迫反应，黄连木幼苗不同部位抵抗胁迫能力大小分别为叶＞根＞茎，胁迫前期渗透调节物质以可溶性糖为主，后期由两者共同调节。
선택1년생황련목실생묘위시험재료，인공설치4충불동적토양수분배경，측정유묘적광합화생리생화지표，분석기대불동수분배경적향응규률。결과표명：불동토양수분조건하황련목유묘적광합속솔정현불동적변화정황，7、9、10월빈균표현위70％～60％토양지수량처리최고，식물기공도도변화여식물광합속솔변화정정상관；4충처리협록소질량분수균선승후강，재8월빈체도최대치，단90％～80％토양지수량처리하협록소질량분수최고；묘목근、경、협중유리포안산、가용성당질량분수재70％～60％토양지수량처리하최위은정，기여3개처리균정현불동정도적상승추세，차대우협박반응，황련목유묘불동부위저항협박능력대소분별위협＞근＞경，협박전기삼투조절물질이가용성당위주，후기유량자공동조절。
We selected one-year-old Pistacia chinensis Bunge seedlings as experimental materials to test the photosynthetic , physiological and biochemical indices under four different soil water conditions and analyzed the response of the seedlings to different water conditions.There are different changes in the photosynthetic rate under four soil water content, but pho-tosynthetic rates are highest in July, August and October, when soil water content is 70%-60%of field moisture capacity. Plant stomatal conductance and photosynthetic rate changes are positively correlated.Chlorophyll content increases firstly, then decreases and reaches its peak in August under four treatment, but the chlorophyll content is highest when soil water content is 90%-80%of field moisture capacity compared with other three treatments .When soil water content is 70%-60%of field moisture capacity, and the soluble sugar and proline content in root, stem and leaf are steady, other treat-ments have different degrees of increase .The ability to resist stress is different in growing organs of Pistacia chinensis Bunge seedlings ( leaf >root>stem) .Soluble sugar is the main osmoregulatory material in early period of stress, and both of soluble sugar and proline act as osmoregulatory materials in later period of stress.