Agronomic and Physiological Performance of the Indica Rice Varieties Differing in Tolerance to Low Phosphorus

Sun, Zhiwei; Qiao, Shengfeng; Xu, Yuemei; Ji, Dongling; Zhang, Weiyang; Gu, Junfei; Zhu, Kuanyu; Wang, Zhiqin; Zhang, Jianhua; Yang, Jianchang

doi:10.3390/agronomy14010041

Cited by 3 publications

References 54 publications

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Screening and identification of evaluation indicators of low phosphorus tolerant germplasm in Gleditsia sinensis Lam.

Lu,

Wang,

Zhao

et al. 2024

Sci Rep

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This study aims to explore the low phosphorus (P) tolerance of saplings from different Gleditsia sinensis Lam. families. It also seeks to screen for Gleditsia sinensis families with strong low P tolerance and identify key indicators for evaluating their tolerance. This research provides a foundation for the breeding of superior families of Gleditsia sinensis and the study of mechanisms underlying low P tolerance. Using saplings from 30 Gleditsia sinensis families as the research subjects, a sand culture pot experiment was conducted. This study set up low P treatment (0.01 mmol L −1 ) and normal P treatment (1 mmol L −1 ). Twenty-five indicators including growth morphology, biomass, root morphology, and P content were measured. The low P tolerance coefficient was used as the basic data for assessing the low P tolerance of Gleditsia sinensis . The fuzzy comprehensive evaluation method was employed to comprehensively assess the low P tolerance types of Gleditsia sinensis a stepwise regression model was established to identify the key evaluation indicators for low P tolerance. The results indicate that low P stress reduced plant height, stem diameter, and biomass in most Gleditsia sinensis families, but increased the root morphological indicators, root-shoot ratio and PUE of various organs. Principal component analysis transformed the 25 indicators into 6 independent comprehensive indicators, with a cumulative contribution rate of 86.743%. The fuzzy comprehensive evaluation method calculated a comprehensive evaluation value (D value), enabling the screening of Gleditsia sinensis families into low P tolerant and low P sensitive types. Cluster analysis grouped the 30 Gleditsia sinensis families into 4 types. Among them, F13, F10, F9, F18, F15, and F28 were classified as low P tolerant types; F6, F23, F3, F17, F20, F2, F12, F11, F16, F8, F5, F27, F1, and F26 were categorized as intermediate types; F30, F7, F22, F4, F19, F29, F24, F14 and F25 were considered low P sensitive types, and F21 was classified as extremely low P sensitive types. The stepwise regression analysis identified the indicators stem diameter, total root volume, shoot dry weight, total root projection area, and leaf P content as the key factors for discriminating the low P tolerance of Gleditsia sinensis . The regression model is as follows: D=-0.005 + 0.323 stem diameter *+0.154 * total root volume + 0.196* shoot dry weight + 0.139* total root projection area − 0.112* leaf P content. In summary, low P stress inhibited the growth of Gleditsia sinensis saplings, but it increased the root morphological indicators, root-shoot ratio and PUE of various organs to cope with low P environments. The screening identified F13, F10, F9, F18, F15, and F28 as low P to...

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Screening and identification of evaluation indicators of low phosphorus tolerant germplasm in Gleditsia sinensis Lam.

Lu,

Wang,

Zhao

et al. 2024

Sci Rep

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Exploring Stable Low Soil Phosphorous Stress Tolerance in Rice Using Novel Allele Recombination From Oryza rufipogon

Magudeeswari,

Balakrishnan,

Surapaneni

et al. 2024

Plant Breeding

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Advent of changing climatic conditions along with nutrient deficient soils adversely affects the environment for the rice production. Wild introgression lines derived from KMR3 and Oryza rufipogon population were evaluated in six environments, including optimum and low phosphorus stress condition. Significant differences among the introgression lines were observed for plant height, tiller number, biomass, grain yield per plant, days to 50% flowering and harvest index across the environments. Based on grain yield observed under optimum phosphorus and limited phosphorus (P stress condition), eight stress tolerance indices were calculated and found STI and GMP are the better indices to discriminate among tolerant and susceptible genotypes, and correlation studies also confirmed the significant association between STI and GMP. Cluster analysis based on stress tolerance indices revealed three different clusters distinguishing genotypes based on their stable performance on yield related traits. AMMI and GGE biplot analysis to identify the stable performance across environments revealed NSR60, NSR101, NSR105, NSR85 and NSR86 as high grain yielders, whereas NSR135, NSR5 and NSR88 as stable performers. WAASBY‐based stability analysis on multiple traits (MTSI) showed NSR135, NSR79 and NSR18 with lowest MTSI, indicating their high stability and high mean performance compared with parent KMR3. Further genotyping for low P tolerance gene (PSTOL1) and grain yield genes (Gn1a, SPIKE, TGW6, DEP1 and OsSPL14) using allele specific markers showed that the desirable alleles of SPIKE, Gn1a and TGW6 were derived from wild parent O. rufipogon. Low P tolerance allele PSTOL1 was absent in recurrent parent KMR3; however, the introgression lines harboured desirable alleles, which were derived from O. rufipogon. Further mapping studies will help to identify a significant potential QTLs/gene for low P tolerance from O. rufipogon. Wild introgression lines, NSR85, NSR124, NSR80, NSR54, NSR86 and NSR88, were found as the high yielding and nutrient stress tolerant genotypes, which can be used as potential donors in future breeding programmes for low P stress tolerance.

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Coapplication of humic acid and gypsum affects soil chemical properties, rice yield, and phosphorus use efficiency in acidic paddy soils

Hartina,

Monkham,

Vityakon

et al. 2024

Preprint

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This study investigated the effects of humic acid (HA), flue gas desulfurization gypsum (FG), and their combined application on soil chemical properties, rice yield, phosphorus use efficiency (PUE), and phosphorus agronomic efficiency (PAE) during rice production in acidic paddy soil, which has not been previously studied. The greenhouse experiment was conducted in a completely randomized block design with four treatments, including a control (with no soil amendments), HA (975 kg ha− 1), FG (636 kg ha− 1), and HA combined with FG. The application of HA increased soil pH, total organic carbon (TOC), cation exchange capacity (CEC), total concentrations of P, Ca, and S, and exchangeable Ca and S. In addition, the application of HA maximized rice yield, total P uptake, PUE, and PAE. The application of FG increased the soil total Ca, whereas the coapplication of HA and FG increased TOC, CEC, available P, exchangeable Ca, exchangeable S, and total S. However, the application of FG, both alone and in combination with HA, failed to increase rice yield, PUE, and PAE owing to lower total P uptake by plants. Therefore, HA application alone is a sustainable soil management practice for acidic paddy soils. In contrast, FG application alone must be careful considered, as it resulted in disappointing agronomic effects.

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Agronomic and Physiological Performance of the Indica Rice Varieties Differing in Tolerance to Low Phosphorus

Cited by 3 publications

References 54 publications

Screening and identification of evaluation indicators of low phosphorus tolerant germplasm in Gleditsia sinensis Lam.

Screening and identification of evaluation indicators of low phosphorus tolerant germplasm in Gleditsia sinensis Lam.

Exploring Stable Low Soil Phosphorous Stress Tolerance in Rice Using Novel Allele Recombination From Oryza rufipogon

Coapplication of humic acid and gypsum affects soil chemical properties, rice yield, and phosphorus use efficiency in acidic paddy soils

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