Yield, Leaf Senescence, and Cry1Ac Expression in Response to Removal of Early Fruiting Branches in Transgenic Bt Cotton

Dong, Hezhong; Tang, Wei; Li, Weijiang; Li, Zhenhuai; Yue-hua, Niu; Zhang, Dongmei

doi:10.1016/s1671-2927(08)60104-2

Cited by 12 publications

(18 citation statements)

References 29 publications

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“…On the other hand, Zahreddine et al [59] reported that the exceeded nutrients' concentration from optimal, reduced the biomass production. Extension in the growing period occurred due to a loss of fruiting structures, which resulted in leaf expansion, photosynthetic capacity, and increased carbon assimilation [60][61][62]. The photoassimilates were accumulated with the continued growth period, with a better supply, rate, and quantity of nutrient accumulation with differed growth periods [63].…”

Section: Discussionmentioning

confidence: 99%

Phosphorus Application Improves the Cotton Yield by Enhancing Reproductive Organ Biomass and Nutrient Accumulation in Two Cotton Cultivars with Different Phosphorus Sensitivity

et al. 2020

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Phosphorus (P) plays a pivotal role in cotton by enhancing the reproductive growth and yield formation. Cotton cultivars vary greatly in response to P availability, especially under P-deficient conditions. So, we hypothesized that the increasing P level promotes the reproductive growth in cotton cultivars varying with P sensitivity. For this, two cotton cultivars, Lu-54 (sensitive to low P) and Yuzaomian-9110 (tolerant to low P), in response to three different P levels (P0: 0 (control), P1: 100, and P2: 200 kg P2O5 ha−1) were studied at 39, 52, 69, 83, and 99 days after transplanting during 2017 and 2018. The results revealed that the seed cotton yield was improved in P1 and P2 treatments by 23.9%–34.5% and 30.8%–52.3% in Lu-54, and 16.6%–25.6% and 20.6%–38.5% in Yuzaomian-9110 during 2017 and 2018, respectively. The accumulation of reproductive organ biomass was 21.0%–52.1% and 28.5%–56.8% higher in Lu-54 and 24.2%–56.8% and 34.8%–69.1% higher in Yuzaomian-9110 in P1 and P2 over the control, respectively. During the fast accumulation period, the average accumulation of N, P, K, and biomass across the years in P2 were recorded as 0.75, 0.6, 0.5, and 120.5 kg ha−1 d−1 in Lu-54, while they were 0.65, 0.5, 0.8, and 98.5 kg ha−1 d−1 in Yuzaomian-9110. Overall, a longer period, in terms of reproductive biomass accumulation, was recorded for Yuzaomian-9110 compared with Lu-54 in 2017 and vice versa across the 2018 growing season. The results suggested that increasing P rate improved yield, reproductive organ biomass, as well as nutrient accumulation in both cotton cultivars. However, low P-sensitive cultivar (Lu-54) was more responsive to P application compared with low P-tolerant cultivar.

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Section: Discussionmentioning

confidence: 99%

Phosphorus Application Improves the Cotton Yield by Enhancing Reproductive Organ Biomass and Nutrient Accumulation in Two Cotton Cultivars with Different Phosphorus Sensitivity

et al. 2020

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“…Plant genotype and parental backgrounds have been recognised as important factors . Other important factors include environmental conditions such as temperature, light, soil properties, waterlogging and drought . In addition, ELISA results commonly vary between studies conducted with different kits, extraction methods and purified standard proteins used.…”

Section: Discussionmentioning

confidence: 99%

Expression of Cry1Ac in transgenicBtsoybean lines and their efficiency in controlling lepidopteran pests

et al. 2013

Pest. Manag. Sci.

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“…Removing early fruiting branches in Bt cotton increased lint yield (5.2-7.5%) and boll size (5.1-5.7%), and a higher level of Cry I Ac protein was found in fully-expanded young leaves in removed fruiting branches compared with the control plant; this clearly indicated that removing fruiting branches enhanced Cry 1 Ac expression (Dong et al, 2008). Removing fruiting forms leads to great morphological and physiological changes, including lint yield variation ranging from a small increase to a large decrease (Sadras, 1995).…”

Section: Effects On Bt Protein Of Removing Early Fruiting Branchesmentioning

confidence: 90%

“…Removing early flower buds can also increase single leaf as well as canopy photosynthesis rate (Jasoni et al, 2000;Wells, 2001;Dumka et al, 2003), which has been considered one of the most important mechanisms for plant growth and yield compensation in cotton. Removing early fruiting branches can reduce premature senescence through decreasing the sink/source ratio, and thus enhance Bt transgenic cotton cultivar yield and quality (Dong et al, 2008). Removing early fruiting branches significantly altered the sink/source ratio through the delayed initiation of fruiting and enhanced vegetative growth, plant height, leaf area, yield, and fiber quality, such as fiber strength and micronaire in Bt cotton (Dong and Li, 2007).…”

Section: Removal Of Early Fruiting Branches And/or Floral Budmentioning

confidence: 99%

Adoption of Bt Cotton: Threats and Challenges

Bilal¹,

Saleem²,

Wahid³

et al. 2012

Chilean J. Agric. Res.

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Yield, Leaf Senescence, and Cry1Ac Expression in Response to Removal of Early Fruiting Branches in Transgenic Bt Cotton

Cited by 12 publications

References 29 publications

Phosphorus Application Improves the Cotton Yield by Enhancing Reproductive Organ Biomass and Nutrient Accumulation in Two Cotton Cultivars with Different Phosphorus Sensitivity

Phosphorus Application Improves the Cotton Yield by Enhancing Reproductive Organ Biomass and Nutrient Accumulation in Two Cotton Cultivars with Different Phosphorus Sensitivity

Expression of Cry1Ac in transgenicBtsoybean lines and their efficiency in controlling lepidopteran pests

Adoption of Bt Cotton: Threats and Challenges

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