Effects of planting density on pod development and yield of peanuts under the pattern of precision planted peanuts

Abstract

Understanding the effects of different sowing patterns and densities on plant growth characters and yield of peanut is essential for the design and adjustment of management practices that allow improvement and stabilization of peanut production. In the present study, Arachis hypogaea L. cv. Luhua 11 was used to determine the effects of planting density on pod development and yield of peanuts under the mode of single seeded precision sowing through field experiments. The results showed that an appropriate precision sowing density of 195,000-225,000 per hectare leads to an optimal pod number to produce pods, with dry matter accumulation resulting in significantly increased pod yield and harvest index(HI). When the same area sowing seed number of 255,000 per hectare, the kernel yield, pod yield, and HI per plant of the single seeded precision sowing method were higher than those of the double seeded precision sowing method.

Agricultural Policy Environmental eXtender (APEX) Simulation of Spring Peanut Management in the North China Plain

“…These negative effects on pod yield could be due to greater competition for light and water among plants at high plant densities or the lower efficiency of resource use at extremely low plant density [23,62]. Consistent with previous observations [25,63,64], these results indicate that optimum plant density greatly improves the canopy structure and light interception, which enhance nutrient and water use efficiency, and finally help produce the highest pod yield.…”

“…Moreover, appropriate planting density is needed to fully explore the peanut's genetic potential for better yield. Planting density not only determines competition for light, water, and nutrients, but also regulates vegetative growth and reproductive development and ultimately controls the distribution of dry matter between the organs and pod yield [23][24][25]. Peanut seed is also more expensive than the seed of most row crops, making it important to reduce seed requirement and costs.…”

Effect of Plant Pattern and Density on Yield and Amino Acid Profile of Tepary Bean (Phaseolus acutifolius) in a Semiarid Area

“…Pod yield also decreased with increase in plant densities (Table 2). These results are consistent with Zhao et al (2017) results. They reported that the highest pod yield, biological yield and grain yield in peanuts were obtained from medium density (225000 seed ha -1 ).…”

Ana Ürün Koşullarında Çift Sıralı Ekim Yöntemlerine Göre Oluşturulan Farklı Bitki Sıklığının, Değişik Büyüme Özelliğine Sahip Yerfıstığı (Arachis hypogaea L.) Çeşitlerinin Bazı Önemli Tarımsal ve Kalite Özellikleri Üzerine Etkileri

“…NC-7 çeşidi demir eksikliğine karşı çok hassas olduğu için, tohumlarını yeteri kadar geliştirememektedir. [25,11,13,10,5,23].…”

“…Diğer yandan, dekardaki bitki sayısı arttıkça, bitki başına verim düşmekte, ancak dekardaki bitki sayısı arttığı için toplam verim artmaktadır. Bu artış belirli bir bitki yoğunluğuna kadar artmaktadır, daha sonra ise düşmektedir [5]. Yerfıstığı veriminde ortaya çıkan bu değişim, çeşitlerin gelişme formuna ve bölgenin ekolojik özelliklerine göre değişmektedir.…”