Short Communication: Evaluation of F6 generation of upland rice promising lines for drought stress tolerance

Mustikarini, Eries Dyah; Lestari, Tri; Santi, Ratna; Prayoga, Gigih Ibnu; CAHYA, ZIKRI

doi:10.13057/biodiv/d230712

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…Trace element and water deficit during the initiation period of the panicle can result in a not fully developed panicle which can affect the future grains. The characteristic of the number of filled grains in a panicle is determined by the generative phase starting from the flowering and fertilization process (Mustikarini et al, 2022).…”

Section: The Number Of Filled Grains Per Paniclementioning

confidence: 99%

Increasing The Growth and Yield of Lowland Rice (Oryza Sativa L.) with Optimum Dosage and Frequency of Potassium

Effendi

Yoseva²,

Suningsih³

2023

JUATIKA

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Lowland rice is a commodity crop that is very influential in the survival of many people, especially inhabitants in most Asian countries, especially Indonesia. Rice is the staple food of Indonesian people, the shortage of which can result in complications for the country. In connection with this food security issue, it is necessary to make efforts to prevent food shortages. The national production capacity of rice must be increased. The long-term goal is to increase the productivity of rice plants to support Indonesia towards rice self-sufficiency. This study has a short-term objective, namely, to determine the effect of potassium fertilizer and to obtain the best dose on the growth and production of rice plants. This was a factorial experiment using a completely randomized design (CRD) with two factors: the KCl fertilizer dosage and the frequency of fertilizer application. The results showed that the best treatment was with a potassium fertilizer dosage of 150 kg ha-1 with a frequency of 2-time fertilizer application.

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Section: The Number Of Filled Grains Per Paniclementioning

confidence: 99%

Increasing The Growth and Yield of Lowland Rice (Oryza Sativa L.) with Optimum Dosage and Frequency of Potassium

Effendi

Yoseva²,

Suningsih³

2023

JUATIKA

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“…Some studies reported an increase in root length under drought stress compared to well-watered conditions (Baccari et al 2020;Chun et al 2021). Other studies, on the other hand, reported no significant difference in root length between plants exposed and not exposed to drought stress conditions (Mustikarini et al 2022). The decrease in root length under drought stress conditions is caused by a decline in both cell division and cell expansion (Yusuf and Hamed 2021) and limited distribution of assimilate to root organs, resulting in shorter root length.…”

Section: Level Gmentioning

confidence: 99%

Response of morpho-physiological traits to drought stress and screening of curly pepper (Capsicum annuum) genotypes for drought tolerance

2022

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Abstract. Rosmaina, Ridho A, Zulfahmi. 2022. Response of morpho-physiological traits to drought stress and screening of curly pepper (Capsicum annuum) genotypes for drought tolerance. Biodiversitas 23: 5469-5480. Developing drought-tolerant genotypes are required to face drought condition that often occurs. The study aimed was to assess the growth, biomass, yield traits, and gas exchange of fifteen curly pepper (Capsicum annuum L.) genotypes under normal and drought-stress conditions and to determine the key traits as indicators for selecting and identifying the drought-tolerant curly pepper genotypes. Fifteen curly pepper genotypes were cultivated under normal and drought-stress conditions. Twenty-one morphological and physiological traits were recorded in the reproductive phase. The data obtained were subjected to analysis of variance, Principal Component Analysis (PCA), and UPGMA dendrogram cluster analysis. This study showed that drought stress conditions significantly reduced plant growth, biomass, yield characters, photosynthesis rate, stomatal conductance, transpiration rate, and mesophyll conductance compared to normal conditions. Based on PCA analysis, stomatal limitation, mesophyll and stomatal conductances, root length, photosynthesis rate, fruit weight per plant, chlorophyll b, number of fruit, and transpiration rate were established as indicators for screening drought tolerant genotypes. The UIN-70 and UIN-65 were highly drought-tolerant genotypes according to the MFVD index. UPGMA dendrogram displayed clustering of the curly pepper genotypes consistent with the genotype's cluster based on the MFVD index. This study's findings can be utilized to improve curly pepper's drought tolerance in the future.

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“…Drought stress in the flowering phase caused a reduction in pollen count per stigma, pollen viability, and pollen germination rate (Gang-Shun et al 2018). To overcome this problem, selecting rice genotypes tolerant to drought stress (Oladosu et al 2016;Huang et al 2019;Mustikarini et al 2022) is necessary. Increasing grain yield under drought stress conditions is an important breeding goal (Heinemann et al 2019;Sabouri et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Application of selection index for rice mutant screening under a drought stress condition imposed at reproductive growth phase

SARWENDAH

LUBIS²,

JUNAEDI³

et al. 2022

Biodiversitas

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Abstract. Sarwendah M, Lubis I, Junaedi A, Purwoko BS, Sopandie D, Dewi AK. 2022. Application of selection index for rice mutant screening under a drought stress condition imposed at reproductive growth phase. Biodiversitas 23: 5446-5452. Drought is a condition of limited availability of water that can reduce rice growth and productivity, and may threaten food security. Therefore, efforts are needed to produce drought-tolerant rice genotypes. This study aimed to select drought tolerant of the M3 mutant upland rice population at the reproductive growth phase. This research was carried out in dryland at BATAN, Indonesia, from September 2020 to February 2021, using an augmented design. The study employed 360 ??genotypes of mutant upland rice and 5 check varieties, namely Salumpikit, IR20, IR64, Limboto, and Situgintung. The selection index was constructed based on multivariate analyses such as correlation, path, and Principal Component Analysis (PCA). The coefficient of the selected main component can be used as a selection index. Before selecting the character values of each genotype, the values were standardized to obtain the same degree of value. The results showed that grain weight per hill (W.G.), panicle density (P.D.), panicle length (P.L.), and the number of filled grains per panicle (NFG) could be used as selection criteria for mutant upland rice tolerant to drought at reproductive growth phase. The selection index formula was I = (5*0.44*WG) + (2*0.41*PD) + (0.23*PL) + (0.42*NFG). Selection of genotypes of mutant upland rice based on weighted index selection resulted in 89 genotypes with high yields and good agronomic characteristics so that they could be tested in further research.

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Short Communication: Evaluation of F6 generation of upland rice promising lines for drought stress tolerance

Cited by 4 publications

References 23 publications

Increasing The Growth and Yield of Lowland Rice (Oryza Sativa L.) with Optimum Dosage and Frequency of Potassium

Increasing The Growth and Yield of Lowland Rice (Oryza Sativa L.) with Optimum Dosage and Frequency of Potassium

Response of morpho-physiological traits to drought stress and screening of curly pepper (Capsicum annuum) genotypes for drought tolerance

Application of selection index for rice mutant screening under a drought stress condition imposed at reproductive growth phase

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