CAJ | 학술논문

研究了不同整枝方式下(双干整枝、三干整枝、四干整枝),日光温室彩色甜椒不同叶位叶片光合、蒸腾作用参数的变化及其植株不同器官干物质的分配规律.结果表明,3种整枝方式下,叶片净光合速率(Pn)、气孔导度(Gs)、气孔限制值(Ls)、蒸腾速率(Tr)和单叶水分利用效率(WUE)随叶位的降低而下降,其中Pn的下降是非气孔限制的结果.与双干整枝相应叶位比较,三干整枝、四干整枝的上位叶、中位叶具有较高的Tr和较低的WUE;三干整枝、四干整枝的下位叶的Tr小于双干整枝下位叶,但WUE高于双干整枝.3种整枝方式下全株中果实的干物质分配比例均为最高,达50.88 %～60.26 %,其次为茎和叶,向根的分配比例最低.三干整枝和四干整枝的单株产量和单果质量显著高于双干整枝.
연구료불동정지방식하(쌍간정지、삼간정지、사간정지),일광온실채색첨초불동협위협편광합、증등작용삼수적변화급기식주불동기관간물질적분배규률.결과표명,3충정지방식하,협편정광합속솔(Pn)、기공도도(Gs)、기공한제치(Ls)、증등속솔(Tr)화단협수분이용효솔(WUE)수협위적강저이하강,기중Pn적하강시비기공한제적결과.여쌍간정지상응협위비교,삼간정지、사간정지적상위협、중위협구유교고적Tr화교저적WUE;삼간정지、사간정지적하위협적Tr소우쌍간정지하위협,단WUE고우쌍간정지.3충정지방식하전주중과실적간물질분배비례균위최고,체50.88 %～60.26 %,기차위경화협,향근적분배비례최저.삼간정지화사간정지적단주산량화단과질량현저고우쌍간정지.
This paper studied the effects of 3 pruned methods(2 stems,3 stems and 4 stems pruned method)on photosynthetic gas exchange parameters,transpiration and distribution pattern of assimilate.The result showed that net photosynthetic rate(Pn),stomatal conductance(Gs),stomatal limitation value(Ls),transpiration rate(Tr)and water use efficiency(WUE)were in upper leaves>in middle leaves>in lower leaves under 3 pruned methods.In middle or lower leaves the decrease of Pn was considered as a result of non-stomata restriction.Compared with 2 stems pruned method,the Tr in upper or middle leaves,and WUE in lower leaves of 3 or 4 stems pruned method increased.Under 3 pruned methods,the distribution pattern of assimilate to fruits was the highest,the next was to stems and leaves,and the distribution of assimilate to root was the lowest.Compared with 2 stems pruned method,per plant yield and weight of single fruit of sweet pepper were significantly increased under 3 or 4 stems pruned method.