Effect of Pruning on Photochemical Activity, Plant Growth and Yield of <i>Capsicum annuum</i> L. var. grossum Grown on Organic Substrate

ZHANG Tian-xiang; YANG Jun-jie; LIN Zong-ken; CAO Ming-hua; LIN Yi-hua; CAI Kun-xiu

doi:10.19303/j.issn.1008-0384.2017.02.008

Volume 32 Issue 2

Apr. 2017

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Article Navigation > Fujian Journal of Agricultural Sciences > 2017 > 32(2): 144-148

ZHANG Tian-xiang, YANG Jun-jie, LIN Zong-ken, CAO Ming-hua, LIN Yi-hua, CAI Kun-xiu. Effect of Pruning on Photochemical Activity, Plant Growth and Yield of Capsicum annuum L. var. grossum Grown on Organic Substrate[J]. Fujian Journal of Agricultural Sciences, 2017, 32(2): 144-148. doi: 10.19303/j.issn.1008-0384.2017.02.008

Citation:

ZHANG Tian-xiang, YANG Jun-jie, LIN Zong-ken, CAO Ming-hua, LIN Yi-hua, CAI Kun-xiu. Effect of Pruning on Photochemical Activity, Plant Growth and Yield of Capsicum annuum L. var. grossum Grown on Organic Substrate[J]. Fujian Journal of Agricultural Sciences, 2017, 32(2): 144-148. doi: 10.19303/j.issn.1008-0384.2017.02.008

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Effect of Pruning on Photochemical Activity, Plant Growth and Yield of Capsicum annuum L. var. grossum Grown on Organic Substrate

doi: 10.19303/j.issn.1008-0384.2017.02.008

Fujian Institute of Tropical Crops, Zhangzhou, Fujian 363000, China

Received Date: 2016-07-15
Rev Recd Date: 2016-09-13
Publish Date: 2017-02-01

Abstract

Abstract

Different pruning methods were applied on Capsicum annuum L.var.grossum grown on an organic substrate to observe their effects on the morphology, photochemical activity and yield of the plants. The results showed that the photosynthetic performance indices, PI_ABS and PI_CSm, and the driving forces, DF_ABS and DF_CSm, were significantly greater when the 3-stem-pruningwas applied. The pruning also rendered the highest leaf PSⅡ photochemical activity among all treatments.Pruning, in general, significantly affected the plant growth. The 2-stem-pruning resulted in significantly greatest plant height, stem diameter and internode length, while the 3-stem-pruning yielded the highest root/shoot ratio. Pruning also affected the fruit count per plant and single fruit weight.The 4-stem-pruning produced the highest fruit count but lowest on single fruit weight, as the 3-stem-pruning delivereda significantly higher yield (up to 2.017 kg per plant) than the other pruning methods. In addition, the 3-stem-pruning significantly increased the soluble sugar content and sugar/acid ratio inthe fruits.
- organic substrate culture,
- pruning methods,
- plant morphology,
- photochemical activity,
- yield

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References(23)

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