Changes of the Physiological Traits for the Different Seed-types of Peanut Species in the Course of Senescence

doi:10.3321/j.issn:1000-7091.2005.06.006

Abstract

Abstract: With different seed-types of peanuts,some physiological traits and yield properties were researched in the course of senescence.The results showed that NR and PAL activities in leaves presented a descending trend in later stage,but the descent speeds for bigger seed types were slower than that of smaller types.The changes of AsA-POD activity decreased on a parabola trend for the bigger types:Y=-0.0492X~2+5.5791X-146.82;and on a linear trend for the smaller ones:Y=-0.553X+39.302.The MDA content ascend quickly during 60-65 days after anthesis for both types.Compared with the smaller species,the MDA content of bigger ones were reduced by 44.9% in mature stage.Finally the 100 seed weight and 100 nut weight were increased by 46.8% and 61.4% respectively.The yield were increased by 33.2%.

Key words: Peanut, Seed-type, Senescence, Physiological traits, Yield properties

CLC Number:

S562.01

ZHOU Su-mei, LI Lei, YIN Jun, HE Li, DONG Wen-zhao. Changes of the Physiological Traits for the Different Seed-types of Peanut Species in the Course of Senescence[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(6): 20-23. doi: 10.3321/j.issn:1000-7091.2005.06.006.

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