造價通
更新時間：2025.01.04
葉菜型甘薯蔓尖產(chǎn)量構(gòu)成分析(英文)

格式：pdf

大?。?span class="single-tag-height">219KB

頁數(shù)： 4頁

Total yields of vine tip of seven varieties of Leaf-vegetable sweetpotato during 2006-2007 were investigated; proportions of the weights of leaf, leaf stalk and stem in total vine tip yield and their changes among varieties and during topping stages were studied. The results showed that vine tip yields of sweetpotato were significantly different among either varieties or topping stages; leaf yield accounted for about 51% of total vine yield, and changes in leaf yield among topping stages were higher than that among varieties; while yields of leaf stalk and stem each accounted for 25% of total vine tip yield, their changes among varieties were higher than those among topping stages. These results revealed the yield composition of vine tip of Leaf-vegetable sweetpotato, which provided scientific references for breeding and cultivating new Leaf-vegetable sweetpotato variety and its industrialization.

假瘤蕨屬(水龍骨科)植物葉片附屬結(jié)構(gòu)的生態(tài)意義

格式：pdf

大?。?span class="single-tag-height">301KB

頁數(shù)：

電鏡下觀察并研究了假瘤蕨屬植物的葉片附屬結(jié)構(gòu).報道了蠟質(zhì)顆粒、片層、柔毛和鱗片.葉片附屬結(jié)構(gòu)在數(shù)量及性質(zhì)上的差別顯示出種類與環(huán)境的適應(yīng)性不同.結(jié)果表明,假瘤蕨屬植物中土生的種類具有較多的蠟質(zhì)顆粒、柔毛及鱗片,而附生的種類具有較多的顆粒及片層,這些葉片特征均與亞熱帶常綠闊葉林的生態(tài)環(huán)境相適應(yīng).

熱門知識

尖葉鹵蕨

精華知識

尖葉鹵蕨

最新知識

尖葉鹵蕨
點擊加載更多>>

相關(guān)問答

尖葉鹵蕨
點擊加載更多>>
專題概述
尖葉鹵蕨相關(guān)專題

分類檢索：