Effects of different dense planting methods on leaf function and yield of summer-sowing peanut

doi:10.19802/j.issn.1007-9084.2020069

Abstract

Abstract:

To explore the the effects of proper planting density on the reproductive growth and yields of peanut population, Yuanza 6, Spanish type peanut with small pod was used as the material, the changes of leaf function, photosynthetic characteristics and yields of peanuts under various combinations in summer-planting peanut were studied. The results showed that the planting model of 2.25 × 105 hole / hm2 could reduce the net photosynthetic rate, antioxidant capacity and the photosynthetic effective radiation interception rate of the middle and lower part of the population, and increase the chlorophyll content, leaf area index and the photosynthetic effective radiation interception rate of the upper part of the population, and increase the full pod rate and kernel rate compared with that in 1.8 × 105 hole/ hm2. Yields of the planting model of 2.25 × 105 hole / hm2 was 12.44% higher than that in 1.8 × 105 hole / hm2, yields of double seed was 12.47% higher than that of single seed, and yields of equal row spacing planting and wide-narrow row planting were basically the same. Yuanza 6 is a close-planting variety, which can be planted directly in summer. The planting density of the variety is increased properly, yields can be increased effectively and the commercial quality of pods can be improved.

Key words: close planting, peanut, leaf function, yield

CLC Number:

中图分类号：S565.2

ZHANG Jun, ZANG Xiu-wang, HAO Xi, LIU Juan, CUI Ya-nan, TANG Feng-shou, DONG Wen-zhao. Effects of different dense planting methods on leaf function and yield of summer-sowing peanut[J]. CHINESE JOURNAL OF OIL CROP SCIENCES, 2021, 43(4): 656-.

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