摘要
用易倒伏的老农家品种小粒红和中抗倒伏掖单2号高产杂交种以及高抗倒伏的掖单4号高产杂交种,田间春播,于蜡熟期取地上第三节间测定,结果表明:掖单4号茎秆硬皮组织厚,机械组织发达,维管束鞘厚度大,单位面积内维管束数目多,纤维细胞机械性能好,木质化薄壁细胞多,茎秆中构成物质多等,因此抗倒能力强。
The anatomical structures of the stalks of 3 maize varieties/hybrids,namely,XiaoliHong,a non-resistant local variety,Yedan No.4,a hybrid highly resistant to lodging,andYedan No.2,a hybrid with intermediate resistance,were studied for their different resist-ance to lodging.All 3 were grown in the same field in spring.At the waxy stage,the 3rdinternodes of the above-ground parts of the stalks were cut down and their anatomicalstructures studied comparatively.The results are as follows:It was found that with Yedan No.4,the hybrid with the highest resistance,the rind isthe thickest among the three;the sclerenchyma and vascular bundle sheaths arewelldeveloped;the mechanical properties of the fiber cells are better.It has more vascularbundles per unit area in a cross section,more lignified parenchyma cells,and the total dryweight of the stalk is the highest among the three.All of these will surely lead to betterresistance to lodging.
出处
《作物学报》
CAS
CSCD
北大核心
1991年第1期70-75,共6页
Acta Agronomica Sinica
