CAJ | 학술논문

本试验在c02加富，气温为30℃-35℃条件下，将空气湿度设置为95％±5％（L1），75％±5％（k），55％±5％（L3）3个处理，研究了空气湿度调控对大棚嫁接黄瓜逆境生理的影响。结果表明：随着处理时间的延长，3个处理叶片中的渗透调节物质、丙二醛含量和保护酶活性均呈增加趋势，细胞质膜透性L2处理和L3处理增加，LI处理降低；随着处理空气湿度的降低，黄瓜叶片中的渗透调节物质、丙二醛含量、保护酶活性和细胞质膜透性均呈降低趋势。在处理第24d时，L1比L2、b的可溶性蛋白含量降低了4．84％、8．18％，脯氨酸含量降低了31．83％、36．77％，可溶性糖含量降低了27．74％、32．52％、丙二醛含量降低了30．34％、32．38％，超氧化物歧化酶（SOD）活性降低了29．45％、37．75％，过氧化氢酶（CAT）活性降低了17．41％、17．41％，过氧化物酶（POD）活性降低了9．14％、44．87％；细胞质膜透性降低了80．75％和80．76％。说明大棚内在CO2加富条件下，在较高的空气湿度环境中，嫁接黄瓜遭受的逆境胁迫较小。进一步证明了亚高温管理大棚可提高嫁接黄瓜抵御逆境胁迫的能力，降低逆境胁迫的程度，缓解逆境对植株的伤害。
본시험재c02가부，기온위30℃-35℃조건하，장공기습도설치위95％±5％（L1），75％±5％（k），55％±5％（L3）3개처리，연구료공기습도조공대대붕가접황과역경생리적영향。결과표명：수착처리시간적연장，3개처리협편중적삼투조절물질、병이철함량화보호매활성균정증가추세，세포질막투성L2처리화L3처리증가，LI처리강저；수착처리공기습도적강저，황과협편중적삼투조절물질、병이철함량、보호매활성화세포질막투성균정강저추세。재처리제24d시，L1비L2、b적가용성단백함량강저료4．84％、8．18％，포안산함량강저료31．83％、36．77％，가용성당함량강저료27．74％、32．52％、병이철함량강저료30．34％、32．38％，초양화물기화매（SOD）활성강저료29．45％、37．75％，과양화경매（CAT）활성강저료17．41％、17．41％，과양화물매（POD）활성강저료9．14％、44．87％；세포질막투성강저료80．75％화80．76％。설명대붕내재CO2가부조건하，재교고적공기습도배경중，가접황과조수적역경협박교소。진일보증명료아고온관리대붕가제고가접황과저어역경협박적능력，강저역경협박적정도，완해역경대식주적상해。
The purpose was to study the effects of air humidity on tstress physiology of the grafted cucumber in sub - high temperature in plastic tunnel under CO2 enrichment. With the cucumber variety Jinchun 4 as the tested material, the cucmnber plants were made for 3 treatments of air humidity as 95% ± 5% ( L1 ), 75% ± 5% ( L2 ), 55% + 5% ( L3 ) in sub - high temperature of 30 - 35℃ under CO2 enrichment respectively. The result showed osmoregulation substances, MDA and the cell protective enzymes activities was all increased with the decreased of air humidity and the treating days. Cell membrane permeability of cucumber leaves in treatment LI was decreased while in treatment L2 and L3 was increased with the treating days. Osmoregulation substances, MDA, the cell protective enzymes activities and cell membrane permeability of cucumber leaves was all decreased with the decreased of air humidity. The soluble protein of treatment L1 was decreased 4.84% and 8.18% respectively compared to Ia and L3 after treatment 24d. The same situation for proline content was decreased 31.83% and 77% ; soluble sugar was decreased 27.74% and 32.52% ; MDA was decreased 30.34% and 32.38% ; SOD activity was decreased 29.45% and 37.75% ; CAT activity was decreased 17.41% and 17.41% ; POD activity was decreased 9.14% and 44.87% ; cell membrane permeability of cucumber leaves was decreased 80.75% and 80.76%.These results illustrated that the grafted cucumber plants was protected from stress tolerance in higher air humidity with sub - high tein- perature plastic tunnel under CO2 enrichment. The ability of resistance stress tolerance of grafted cucumber plants was increased and the hurt of plants was alleviated by stress tolerance in higher air humidity with sub - high temperature under CO2 enrichment.