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In order to screen out the high-quality new peanut varieties (lines) suitable for being planted in the peanut area of Fujian, the yield, characteristics, disease (stress) resistance and quality of 8 introduced new peanut varieties (lines) were compared. The results showed that the dry pod yield and kernel yield of Guihua 376 were both the highest, which were 3 805.05 kg·hm−2 and 2 430.00 kg·hm−2, respectively, which were 20.60% and 21.96% higher than those of Zhanyou 75 (CK). All the varieties (lines) showed strong waterlogging tolerance and moderate rust resistance. Puhua 66 had the highest protein content of 29.24%, which could be used as a parent material with high protein. The oleic acid content of Guihua 376 was 78.96%, which could be used as a parent material with high oleic acid. The comprehensive analysis showed that Guihua 376 had the best comprehensive performance and could be further promoted and planted in Fujian. [ABSTRACT FROM AUTHOR]

In order to explore the suitable planting mode and single-seed precision sowing density of peanut, Quanhua No. 22 was selected as the experimental material> and the split-plot design was adopted. The two planting methods of bare land and film mulching were the main treatments, and the five densities of single-seed sowing were the secondary treatments. The difference of plant growth and pod yield under two planting patterns with d辻ferent seeding densities was compared with the double-seed conventional seeding density as comparison. The results showed that compared with the planting treatment of bare land, the planting treatment of film mulching could shorten the growth period and increase the yield, and the yield difference between them was extremely significan匚 The yields of peanut under the treatment of single-seed sowing density with the planting spacing of 17 cmX 17 cm were all the highest in the secondary treatments of the two main treatments. The yield was 3 308. 85 kg • hm-2 under the treatment of bare land, which was 13. 30% higher than that of the control group, and the difference was significant. The yield was 3 737. 63 kg • hm-2 under the treatment of film mulching, which was & 34% higher than that of the control group, and the difference was extremely significan匚 The peanut variety Quanhua No. 22 selected in the experiment was planted with the treatment of single-seed sowing and film mulching with the planting spacing of 17 cmX 17 cm, which had good potential for increasing the yield and efficiency. [ABSTRACT FROM AUTHOR]

In order to explore the effects of plastic film mulching cultivation on the main agronomic characters, yield and quality of peanut, a new high-yield and high-quality resistant peanut variety Quanhua 557 was used as the test material. By using the single factor randomized block design, the effects of different plastic film mulching (color matching plastic film, silver-gray plastic film, black plastic film, ordinary plastic film and degradable plastic film) on its germination rate, yield and quality were studied with the bare land as the control group. The results showed that, compared with the control group, the treatment of plastic film mulching could significantly improve the yield of peanut, and the yield increased to a very significant level. The higher yield of plastic film mulching cultivation resulted from the advantages of higher productivity per plant and earlier entry into the yield formation period. The yield of peanut with different plastic film mulching treatments was in order as follows: silver-gray plastic film, black plastic film, ordinary plastic film, degradable plastic film and color matching plastic film. The fat content and linoleic acid content in peanut were higher than those in the control group, while the protein content and oleic acid content in the control group were the highest, but there was no significant difference in the quality of peanut among d辻ferent treatments. [ABSTRACT FROM AUTHOR]