The HPHR has more vascular bundles and a much bigger area of single vascular bundle, total vascular bundle, total phloem and total xylem in the first internode than Shanyou 63.

 
  • 結果表明,重穗型組合的大維管束數目、單個(gè)維管束面積及維管束總面積、韌皮部總面積均明顯高于汕優(yōu)63。
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