华北农学报
華北農學報
화북농학보
ACTA AGRICULTURAE BOREALI-SINICA
2013年
6期
209-213
,共5页
无机硫形态%韭菜%硝酸盐还原同化%氮代谢关键酶
無機硫形態%韭菜%硝痠鹽還原同化%氮代謝關鍵酶
무궤류형태%구채%초산염환원동화%담대사관건매
Inorganic sulfur form%Chinese chive%Nitrate reduction and assimilation%Nitrogen metabolism ac-tivities of key enzymes
以多年生日光温室韭菜为试材,以10 mmol/L的硫为总量,研究了无机硫形态及配施对韭菜硝酸盐含量、氮代谢关键酶活性和营养品质的影响。结果表明:NaHSO3和Na2 S2 O3配合施用可明显提高硝酸还原酶( NR)、谷氨酸草酰乙酸转氨酶(GOT)、谷氨酸丙酮酸转氨酶(GPT)活性,有效降低硝酸盐含量,其中以7.5 mmol/L NaHSO3+1.25 mmol/L Na2 S2 O3( S6处理)效果最为明显,降低了35.79%。施硫处理后,韭菜叶片可溶性蛋白质、游离氨基酸、可溶性糖、维生素C含量均有不同程度的增加,且以游离氨基酸增加幅度最大,2.5 mmol/L NaHSO3+3.75 mmol/L Na2 S2 O3(S7处理)和5 mmol/L Na2S2O3(S4处理)分别提高了88.89%和83.33%,并且提高了游离氨基酸与可溶性蛋白比值A/P。同时,NaHSO3和Na2 S2 O3配合施用也表现出促进韭菜干物质的积累,增加韭菜株高和鲜质量。
以多年生日光溫室韭菜為試材,以10 mmol/L的硫為總量,研究瞭無機硫形態及配施對韭菜硝痠鹽含量、氮代謝關鍵酶活性和營養品質的影響。結果錶明:NaHSO3和Na2 S2 O3配閤施用可明顯提高硝痠還原酶( NR)、穀氨痠草酰乙痠轉氨酶(GOT)、穀氨痠丙酮痠轉氨酶(GPT)活性,有效降低硝痠鹽含量,其中以7.5 mmol/L NaHSO3+1.25 mmol/L Na2 S2 O3( S6處理)效果最為明顯,降低瞭35.79%。施硫處理後,韭菜葉片可溶性蛋白質、遊離氨基痠、可溶性糖、維生素C含量均有不同程度的增加,且以遊離氨基痠增加幅度最大,2.5 mmol/L NaHSO3+3.75 mmol/L Na2 S2 O3(S7處理)和5 mmol/L Na2S2O3(S4處理)分彆提高瞭88.89%和83.33%,併且提高瞭遊離氨基痠與可溶性蛋白比值A/P。同時,NaHSO3和Na2 S2 O3配閤施用也錶現齣促進韭菜榦物質的積纍,增加韭菜株高和鮮質量。
이다년생일광온실구채위시재,이10 mmol/L적류위총량,연구료무궤류형태급배시대구채초산염함량、담대사관건매활성화영양품질적영향。결과표명:NaHSO3화Na2 S2 O3배합시용가명현제고초산환원매( NR)、곡안산초선을산전안매(GOT)、곡안산병동산전안매(GPT)활성,유효강저초산염함량,기중이7.5 mmol/L NaHSO3+1.25 mmol/L Na2 S2 O3( S6처리)효과최위명현,강저료35.79%。시류처리후,구채협편가용성단백질、유리안기산、가용성당、유생소C함량균유불동정도적증가,차이유리안기산증가폭도최대,2.5 mmol/L NaHSO3+3.75 mmol/L Na2 S2 O3(S7처리)화5 mmol/L Na2S2O3(S4처리)분별제고료88.89%화83.33%,병차제고료유리안기산여가용성단백비치A/P。동시,NaHSO3화Na2 S2 O3배합시용야표현출촉진구채간물질적적루,증가구채주고화선질량。
With perennial greenhouse Chinese chive as experimental materials ,10 mmol/L sulfur as total,to study the effects of inorganic sulfur forms on the nitrate content of Chinese chive ,nitrogen metabolism and nutrition-al quality.Experimental results show that ,the combined application of NaHSO 3 and Na2 S2 O3 can significantly im-prove the activities of nitrate reductase ( NR) ,glutamic-oxaloacetic transaminase ( GOT) ,glutamic-pyruvic transam-inase ( GPT ) , and reduce the nitrate content effectively , especially , the effect of 7 .5 mmol/L NaHSO 3 +1 .25 mmol/L Na2S2O3 is the best,and it can decrease 35.79%.After sulfur treatment,and the content of soluble pro-tein,free amino acids,soluble sugar,Vitamin C in Chinese chive leaves increases in different degrees ,especially, free amino acids has the greatest increases .2.5 mmol/L NaHSO3 +3.75 mmol/L Na2 S2 O3 ( S7 ) increases 88.89%,and 5 mmol/L Na2 S2 O3 (S4) increases 83.33% and soluble protein (A1P) increase.Meanwhile,the combined application of NaHSO 3 and Na2 S2 O3 can also promote the accumulation of dry matter Chinese chive ,and increase chives plant height and fresh weight .