浙江农业学报
浙江農業學報
절강농업학보
ACTA AGRICULTURAE ZHEJIANGENSIS
2014年
5期
1240-1245
,共6页
李有贵%林天宝%钟石%吕志强%计东风
李有貴%林天寶%鐘石%呂誌彊%計東風
리유귀%림천보%종석%려지강%계동풍
桑叶%1-脱氧野尻霉素%生长规律%光照
桑葉%1-脫氧野尻黴素%生長規律%光照
상협%1-탈양야고매소%생장규률%광조
mulberry leaf%1-deoxynojirimycin%growth law%light
以浙江省主栽品种农桑14号、强桑1号、荷叶白为对象，研究了不同时间、不同叶片中1-脱氧野尻霉素（ DNJ）含量差异以及光照对桑树DNJ含量的影响。结果发现：3个品种桑叶DNJ含量在不同时期差异显著，同一品种不同叶片间DNJ含量同样差异显著。在春季，3个品种嫩芽中DNJ 含量分别高达0.432％，0.467％和0.649％；前10片成熟叶DNJ平均含量在5月1日左右最高，此后随着叶片的老化而逐渐降低至0.2％以下。夏伐后，3个品种成熟叶DNJ平均含量在7月1日左右最高，之后随叶片衰老，DNJ含量均逐渐降低，但随着气温升高、光照增强，DNJ含量再次升高，农桑14于9月1日、强桑1号于9月16日、荷叶白于8月16日再次达到峰值，后随叶片进一步衰老而逐渐降低至0.1％以下。农桑14组培苗中DNJ含量测定发现，光照不仅明显影响桑苗生长形态，日光照5 h和16 h桑苗叶片中DNJ含量分别由（0.389±0.029）％提高至（0.689±0.024）％，新梢中由（0.449±0.026）％提高至（0.859±0.037）％。试验结果表明，桑叶DNJ在嫩芽中含量最高，后随叶片老化而降低，但光照可显著提高桑树中DNJ含量，该结果为药用型桑树的栽培区域以及收获时期的选择提供参考。
以浙江省主栽品種農桑14號、彊桑1號、荷葉白為對象，研究瞭不同時間、不同葉片中1-脫氧野尻黴素（ DNJ）含量差異以及光照對桑樹DNJ含量的影響。結果髮現：3箇品種桑葉DNJ含量在不同時期差異顯著，同一品種不同葉片間DNJ含量同樣差異顯著。在春季，3箇品種嫩芽中DNJ 含量分彆高達0.432％，0.467％和0.649％；前10片成熟葉DNJ平均含量在5月1日左右最高，此後隨著葉片的老化而逐漸降低至0.2％以下。夏伐後，3箇品種成熟葉DNJ平均含量在7月1日左右最高，之後隨葉片衰老，DNJ含量均逐漸降低，但隨著氣溫升高、光照增彊，DNJ含量再次升高，農桑14于9月1日、彊桑1號于9月16日、荷葉白于8月16日再次達到峰值，後隨葉片進一步衰老而逐漸降低至0.1％以下。農桑14組培苗中DNJ含量測定髮現，光照不僅明顯影響桑苗生長形態，日光照5 h和16 h桑苗葉片中DNJ含量分彆由（0.389±0.029）％提高至（0.689±0.024）％，新梢中由（0.449±0.026）％提高至（0.859±0.037）％。試驗結果錶明，桑葉DNJ在嫩芽中含量最高，後隨葉片老化而降低，但光照可顯著提高桑樹中DNJ含量，該結果為藥用型桑樹的栽培區域以及收穫時期的選擇提供參攷。
이절강성주재품충농상14호、강상1호、하협백위대상，연구료불동시간、불동협편중1-탈양야고매소（ DNJ）함량차이이급광조대상수DNJ함량적영향。결과발현：3개품충상협DNJ함량재불동시기차이현저，동일품충불동협편간DNJ함량동양차이현저。재춘계，3개품충눈아중DNJ 함량분별고체0.432％，0.467％화0.649％；전10편성숙협DNJ평균함량재5월1일좌우최고，차후수착협편적노화이축점강저지0.2％이하。하벌후，3개품충성숙협DNJ평균함량재7월1일좌우최고，지후수협편쇠로，DNJ함량균축점강저，단수착기온승고、광조증강，DNJ함량재차승고，농상14우9월1일、강상1호우9월16일、하협백우8월16일재차체도봉치，후수협편진일보쇠로이축점강저지0.1％이하。농상14조배묘중DNJ함량측정발현，광조불부명현영향상묘생장형태，일광조5 h화16 h상묘협편중DNJ함량분별유（0.389±0.029）％제고지（0.689±0.024）％，신소중유（0.449±0.026）％제고지（0.859±0.037）％。시험결과표명，상협DNJ재눈아중함량최고，후수협편노화이강저，단광조가현저제고상수중DNJ함량，해결과위약용형상수적재배구역이급수획시기적선택제공삼고。
Using the Zhejiang Province leading varieties of Nongsang 14 , Qiangsang 1 and Heyebai as the subjects , this experiment was conducted to investigate the difference of 1-deoxynojirimycin ( DNJ ) concentration in different mulberry leaves at different time , and the effect of light on DNJ concentration in mulberry tree .The results showed that the DNJ content in these three varieties of mulberry leaf was significantly different in different periods , and with-in the same variety, leaf DNJ content also had significant difference .In spring, DNJ content in these three varieties was as high as 0.432%, 0.467%and 0.649%, respectively .The highest average concentration of DNJ in the first 10 pieces of mature leaves was on May 1st, thereafter with leaf aging, it gradually decreased to below 0.2%.After cutting in summer , the average concentration of DNJ in the first 10 pieces of mature leaves in these three varieties was the highest on July 1st.Followed with the leaf senescence , the content of DNJ was decreased gradually .But with temperature and light intensity increased , the content of DNJ increased again , and reached to the peak on September 1st for Nongsang 14, September 16th for Qiangsang 1 and August 16th for Heyebai.Thereafter, with leaf aging, the DNJ concentration gradually decreased to below 0.1%.The effect of light intensity on the DNJ content of NongSang 14 plantlets was studied , and the result showed that with 5 h and 16 h light per day , not only the mulberry growth morphology was significantly affected , but the DNJ content was also evidently increased from (0.389 ±0.029 )%to (0.689 ±0.024 )%in leaf and enhanced from (0.449 ±0.026 )%to(0.859 ±0.037 )%in trunk.These results in-dicated that the concentration of the DNJ was the highest in mulberry bud , and with the leaf senescence , its concen-tration reduced gradually .But the DNJ content in mulberry leaf could significantly increase under longer light condi -tion.These results provided a consult for selecting the cultivation areas and harvest period of medicinal used mulberry trees.
