林业科学
林業科學
임업과학
SCIENTIA SILVAE SINICAE
2014年
6期
90-97
,共8页
枣%枣吊%组织解剖结构%光合效率
棘%棘弔%組織解剖結構%光閤效率
조%조조%조직해부결구%광합효솔
jujube%bearing shoot%tissue anatomical structure%photosynthetic efficiency
以南方鲜食枣品种中秋酥脆枣的2种类型枣吊为试材,对木质化枣吊和非木质化枣吊叶片的生长期、叶面积、光合效率进行研究。结果表明:1)木质化枣吊生长期明显比非木质化枣吊生长期长;2)木质化枣吊叶片叶面积显著大于非木质化枣吊叶面积;3)木质化枣吊叶片净光合速率大于非木质化枣吊叶片,而且在强光下仍可保持较高的光合效率;4)木质化枣吊叶片栅栏组织细胞密集度大于非木质化枣吊叶片,且木质化枣吊茎的输导组织较非木质化枣吊发达;5)木质化枣吊叶片叶绿素 a和叶绿素 b的比值明显大于非木质化枣吊的叶绿素 a 和叶绿素 b的比值。综合分析认为,木质化枣吊与非木质化枣吊相比,在生长期、叶面积、光合效率3个方面具有优势,这些特点最终决定其拥有较高的光合产物积累能力。
以南方鮮食棘品種中鞦酥脆棘的2種類型棘弔為試材,對木質化棘弔和非木質化棘弔葉片的生長期、葉麵積、光閤效率進行研究。結果錶明:1)木質化棘弔生長期明顯比非木質化棘弔生長期長;2)木質化棘弔葉片葉麵積顯著大于非木質化棘弔葉麵積;3)木質化棘弔葉片淨光閤速率大于非木質化棘弔葉片,而且在彊光下仍可保持較高的光閤效率;4)木質化棘弔葉片柵欄組織細胞密集度大于非木質化棘弔葉片,且木質化棘弔莖的輸導組織較非木質化棘弔髮達;5)木質化棘弔葉片葉綠素 a和葉綠素 b的比值明顯大于非木質化棘弔的葉綠素 a 和葉綠素 b的比值。綜閤分析認為,木質化棘弔與非木質化棘弔相比,在生長期、葉麵積、光閤效率3箇方麵具有優勢,這些特點最終決定其擁有較高的光閤產物積纍能力。
이남방선식조품충중추소취조적2충류형조조위시재,대목질화조조화비목질화조조협편적생장기、협면적、광합효솔진행연구。결과표명:1)목질화조조생장기명현비비목질화조조생장기장;2)목질화조조협편협면적현저대우비목질화조조협면적;3)목질화조조협편정광합속솔대우비목질화조조협편,이차재강광하잉가보지교고적광합효솔;4)목질화조조협편책란조직세포밀집도대우비목질화조조협편,차목질화조조경적수도조직교비목질화조조발체;5)목질화조조협편협록소 a화협록소 b적비치명현대우비목질화조조적협록소 a 화협록소 b적비치。종합분석인위,목질화조조여비목질화조조상비,재생장기、협면적、광합효솔3개방면구유우세,저사특점최종결정기옹유교고적광합산물적루능력。
In this paper,a southern fresh jujube,Zhongqiusucui,used in a comparative study on the growth period, leaf area and photosynthetic efficiency of lignified bearing shoot and non-lignified bearing shoot. The results showed that:1) The growth period of lignified bearing shoot was longer than that of non-lignified bearing shoot. 2) The leaf area of lignified bearing shoot was significantly larger than that of non-lignified bearing shoot. 3 ) The net photosynthetic rate of lignified persistent bearing was higher than that of non-lignified bearing shoot. Under the strong light condition,lignified bearing shoot still maintained high photosynthetic rate. 4) Anatomy showed that the cell density of the palisade tissues of lignified bearing shoot was greater,and the conducting tissue of stem was stronger than that of non-lignified bearing shoot. 5) The chlorophyll a/b ratio of lignified bearing shoot was significantly greater than that of non-lignified bearing shoot. By comprehensive analysis on the comparison between lignified bearing shoot and non-lignified bearing shoot,the lignified bearing shoot had advantages in growth period,leaf area and photosynthetic efficiency,all of which indicate the lignified bearing shoot should have higher accumulation ability of photosynthetic product.