2010•Xinjiang nongye kexueRequires access

Analysis on Heterosis of Yield and Traits of Self-cultivated Intervarietal Crossing of Sea Island Cotton

Ding Sheng, Lu NaiZeng, Dongjie Yang, Zhang Li-li, Yongjun Mei

Abstract

【Objective and Method】Five yield traits of 6 parents and their 15 F1 crosses(6×6) of Sea island cotton were analyzed by the genetic model of additive-dominance effect by MINQUE(1) approaches.【Result】The results indicated that there existed highly significant additive effect on boll number,lint percentage and lint yield per plant(except for boll weight),highly significant dominance effect on boll number,boll weight and lint percentage(except for lint yield per plant).【Conclusion】There was a significant positive super-parant heterosis in the average genetic performance of boll number and lint percentage,but there was no positive population advantage in the yield of boll weight and lint percentage per plant.

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Key concepts: Lint, Heterosis, Biology, Yield (engineering), Agronomy, Population, Horticulture, Hybrid