嘉应学院学报
嘉應學院學報
가응학원학보
JOURNAL OF JIAYING UNIVERSITY
2012年
2期
48-52
,共5页
玷溪蜜柚%幼苗%矿质元素%缺素处理%缺素症状
玷溪蜜柚%幼苗%礦質元素%缺素處理%缺素癥狀
점계밀유%유묘%광질원소%결소처리%결소증상
Guanxi honey pomelo%seedling%mineral elements%nutrient deficiency solution%nutrient deficiencysymptom
琅溪蜜柚是我国一个优良的柚类品种，营养诊断是生产中的一个难题．以瑁溪蜜柚实生幼苗为材料，在室内溶液培养条件下，诱导瑁溪蜜柚幼苗缺乏N、P、K、Ca、Mg、S、Fe的7种缺素症，研究瑁溪蜜柚幼苗上述7种缺素症的形态表现特征及各缺素处理对君溪蜜柚幼苗生长、生物量、功能叶的叶绿素含量的影响．结果表明：各缺素处理都诱导瑁溪蜜柚幼苗出现各自特有的专一缺素症状；不同缺素处理诱导瑁溪蜜柚幼苗出现不同缺素症的时间和程度有差别，7种缺素症以缺Ca症表现最早，以缺ca、Fe的症状最为明显，其它五种缺素症状次之、但都可明显觉察；不同缺素处理都影响瞎溪蜜柚幼苗生物量，缺索处理的干物质积累量均低于完全培养，缺N、Ca、Mg、Fe处理对干物质积累与对照相比有明显差异，分别为对照的46％、30％、49％、43％；除缺P处理外，其它缺素处理的功能叶的叶绿素含量均明显低于完全营养液培养的植株，其中尤以缺Ca、Ng、Fe为显著，分别为对照的47％、44％、17％．据上述不同必需矿质元素缺素症的表现特征和规律，制作了蹿溪蜜柚幼苗上述缺素症的检索表，以供蹿溪蜜柚生产中营养诊断与合理施肥借鉴．
瑯溪蜜柚是我國一箇優良的柚類品種，營養診斷是生產中的一箇難題．以瑁溪蜜柚實生幼苗為材料，在室內溶液培養條件下，誘導瑁溪蜜柚幼苗缺乏N、P、K、Ca、Mg、S、Fe的7種缺素癥，研究瑁溪蜜柚幼苗上述7種缺素癥的形態錶現特徵及各缺素處理對君溪蜜柚幼苗生長、生物量、功能葉的葉綠素含量的影響．結果錶明：各缺素處理都誘導瑁溪蜜柚幼苗齣現各自特有的專一缺素癥狀；不同缺素處理誘導瑁溪蜜柚幼苗齣現不同缺素癥的時間和程度有差彆，7種缺素癥以缺Ca癥錶現最早，以缺ca、Fe的癥狀最為明顯，其它五種缺素癥狀次之、但都可明顯覺察；不同缺素處理都影響瞎溪蜜柚幼苗生物量，缺索處理的榦物質積纍量均低于完全培養，缺N、Ca、Mg、Fe處理對榦物質積纍與對照相比有明顯差異，分彆為對照的46％、30％、49％、43％；除缺P處理外，其它缺素處理的功能葉的葉綠素含量均明顯低于完全營養液培養的植株，其中尤以缺Ca、Ng、Fe為顯著，分彆為對照的47％、44％、17％．據上述不同必需礦質元素缺素癥的錶現特徵和規律，製作瞭躥溪蜜柚幼苗上述缺素癥的檢索錶，以供躥溪蜜柚生產中營養診斷與閤理施肥藉鑒．
랑계밀유시아국일개우량적유류품충，영양진단시생산중적일개난제．이모계밀유실생유묘위재료，재실내용액배양조건하，유도모계밀유유묘결핍N、P、K、Ca、Mg、S、Fe적7충결소증，연구모계밀유유묘상술7충결소증적형태표현특정급각결소처리대군계밀유유묘생장、생물량、공능협적협록소함량적영향．결과표명：각결소처리도유도모계밀유유묘출현각자특유적전일결소증상；불동결소처리유도모계밀유유묘출현불동결소증적시간화정도유차별，7충결소증이결Ca증표현최조，이결ca、Fe적증상최위명현，기타오충결소증상차지、단도가명현각찰；불동결소처리도영향할계밀유유묘생물량，결색처리적간물질적루량균저우완전배양，결N、Ca、Mg、Fe처리대간물질적루여대조상비유명현차이，분별위대조적46％、30％、49％、43％；제결P처리외，기타결소처리적공능협적협록소함량균명현저우완전영양액배양적식주，기중우이결Ca、Ng、Fe위현저，분별위대조적47％、44％、17％．거상술불동필수광질원소결소증적표현특정화규률，제작료찬계밀유유묘상술결소증적검색표，이공찬계밀유생산중영양진단여합리시비차감．
Nutrient diagnosis of Guanxi honey pomelo is a problem in production. To investigate the effect of Guanxi honey pomelo which treated with 7 mineral element deficiency by indoor solution culture, the morphological charac- ter, growth, biomass, chlorophyll content of the plant were observed. The results showed that： 1. specific symptom was found in each treatment;2. The time of symptom appearance in each deficiency solution was different, and each had different impacts;The symptom Ca or Fe deficiency was the most obvious;3. The dry mass accumulation of the deficiency solution was lower than that of complete nutrient solution（ CK）, and N, Ca, Mg, Fe deficient treatments were reduced to 46% ,30% ,49% ,43% relatively;4. Except P deficient treatments, the chlorophyll content of the deficiency solution was obviously lower than those of CK, Ca, Mg, Fe deficient treatments which were reduced to 47% ,44% ,17% relatively. Finally, to diagnose and fertilize conveniently, we made the retrieval table of element deficiency symptoms of Guanxi honey pomelo according to these specificity and regularity.
