| Effect of mulch and water absorbent on morphological characters and membrane permeability of potato |
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| DOI：10.7606/j.issn.1000-7601.2010.06.32 |
| Key Words: potato mulch water absorbent membrane permeability yield |
| Author Name | Affiliation | | LI Qian | College of Agronomy, Inner Mongolia Agricultural University，Hohhot, Inner Mongolia 010019，China | | LIU Jinghui | College of Agronomy, Inner Mongolia Agricultural University，Hohhot, Inner Mongolia 010019，China | | ZHANC Lei | College of Agronomy, Inner Mongolia Agricultural University，Hohhot, Inner Mongolia 010019，China | | LIU Chao | College of Agronomy, Inner Mongolia Agricultural University，Hohhot, Inner Mongolia 010019，China | | YAN Yafei | College of Agronomy, Inner Mongolia Agricultural University，Hohhot, Inner Mongolia 010019，China | | CHEN Qin | Agriculture and Agri-Food Canada Research Centre，Lethbridge, Albera T1 J4B1, Canada |
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| Abstract: |
| The effect of mulch and water absorbent on morphological characters, leaf membrane permeability and
yield were studied using potato variety Kexin 1. Eight treatments were consisted, including control group(CK), control
group-water absorbent junction(CKB), straw mulch(PF), straw mulch-water absorbent junction(PFB)，film mulching on furrows(UPF), film mulching on furows-water absorbent junction (UPB), film mulching beside furrows (SPF), film
mulching beside furrows- water absorbent junction(SPFB) . The results were concluded that plant height and plant fresh weight showed an increasing tendency with the growth duration. The plant height of CK and PFB were significantly higher than the other treatments (P<0.01) at starch accumulation stage; Fresh weight of SPB and SPFB were significantly higher than others (P< 0.01), but the plant height and plant fresh weight of these two treatments were lower. The value of relative membrane permeability first reduced and then increased with the growth duration, and MDA content presented basically an increasing trend. The MDA content of UPF and UPFB were much higher. The yield of PF and PFB were sig-nificantly higher than others (P<0.01), and the value of UPF and UPFB were lowest. The yield of PFB remained 169.65 % more than UPF, and 214. 20% more than UPFB. In all, straw mulch, film mulching beside furrows and film mulching beside furrows-water absorbent junction treatments produced more potato yield. |
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