Effect of Gypsum and Drought on Pod Initiation and Crop Yield in Early Maturing Groundnut (<i>Arachis hypogaea</i>) Genotypes

Rajendrudu, G.; Williams, J. H.

doi:10.1017/s0014479700017142

Cited by 13 publications

(12 citation statements)

References 16 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although adequate calcium (as gypsum) was applied to the podding zone of all plants in this study, there are numerous reports that drought can decrease calcium uptake and thus induce calcium deficiency in peanuts (Gillier 1969;Hallock and Allison 1980;Rajendrudu and Williams 1987). Calcium is absorbed from the soil mainly by the subterranean pegs and developing pods, while calcium uptake by roots is not usually available for pod growth and development (Beringer and Taha, 1976;Wiersum 1951).…”

Section: Discussionmentioning

confidence: 97%

Effect of pod zone moisture content on reproductive growth in three cultivars of peanut (Arachis hypogaea)

Wright

1989

Plant Soil

View full text Add to dashboard Cite

Very little research has been done to investigate the effect of a dry podding zone on reproductive development in peanut plants that are otherwise well hydrated via subsoil moisture extraction. The influence of podding zone moisture content on reproductive development and growth of three peanut cultivars (McCubbin, Gajah and Robut 33-1) was investigated in pots grown in the glasshouse. In two cultivars (McCubbin and Gajah) seed yield was reduced in a dry (air-dry) compared to a wet (field capacity) podding zone. Seed yield of Robut 33-1 was unaffected by podding zone moisture content, indicating that cultivar variation in reproductive performance in response to podding zone moisture may exist.

show abstract

Section: Discussionmentioning

confidence: 97%

Effect of pod zone moisture content on reproductive growth in three cultivars of peanut (Arachis hypogaea)

Wright

1989

Plant Soil

View full text Add to dashboard Cite

show abstract

“…Similar experiments elsewhere have found that soil water deficits during pegging and pod development decrease yield primarily by reducing pod numbers (Pallas etal. 1979;Rajendrudu and Williams 1987). Calcium deficiency caused by low soil water content in the podding zone has also been shown to strongly influence pod initiation and development under drought conditions (Gillier 1969;Skelton and Shear 1971;Hallock and Allison 1980), and may have contributed to the poor reproductive development in this experiment.…”

Section: Discussionmentioning

confidence: 73%

“…However gypsum (500 kg ha-1) was applied to all plots at 20 DAP, a practice which has been shown to increase the percentage of developed pods (Radder and Biradar 1973). Rajendrudu and Williams (1987) have recently demonstrated that the response to gypsum can vary with genotype and pattern of drought stress.…”

Section: Discussionmentioning

confidence: 99%

Growth, yield and soil water extraction of irrigated and dryland peanuts in South Sulawesi, Indonesia

Prabowo¹,

Prastowo²,

Wright

1990

Irrig Sci

View full text Add to dashboard Cite

Irrigation at 35 and 70 mm of pan evaporation applied during the pre and/or post early podfilling stages increased pod yield of spanish peanuts (100 day maturity) three fold compared to a dryland crop. There was no difference in pod yield in crops receiving 12 compared to 6 irrigations. Soil water sampling immediately after irrigations on selected treatments revealed that infiltration of irrigation water was probably restricted to less than ca. 20 cm, a response which resulted in poor soil water replenishment and low irrigation efficiency (Fig. 3). Even though roots extracted soil water below the compaction layer which was at 20 cm severe crop water deficits had developed by the end of irrigation cycles during later but not early stages of growth. The dryland crop, which received no rainfall during the season, presumably extracted significant amounts of soil water at depths to and below 1.2 m (Fig. 3). Despite producing ca. 2.9 t ha-1 of total dry matter yield, pod yield was extremely low (0.5 t ha -1) arising from low pod numbers and high percentage of empty pods.Throughout much of South Sulawesi the present cropping system consists of wet season (paddy) rice, with very little dry season production of non-rice field crops (palawija) such as peanuts, soybeans, maize and mungbeans. The lack of field crops is largely due to water limitations, both of rainfall and of irrigation, during the growing season (Willatt and Samosir 1984). Recent investigations have revealed large areas of good quality and easily accessible groundwater available for pumping throughout many of the lowland areas of South Sulawesi. A potential therefore exists for more widespread field crop production using sup-*

show abstract

“…Neverthe less, the percentage of pegs that progressed to form pods (> R4 stage) by 47 to 49 d after tagging was reduced from a combined average of 81% in irrigated treatments to 57% in stressed treatments (Table 4). Rajendrudu and Williams (1987) also reported that drought reduced the percentage of pegs that developed into pods. Drought stress reduced the pod growth rates of both the pods tagged before and after the rain-exclusion treat ment was initiated ( Fig.…”

Section: Resultsmentioning

confidence: 95%

The Effect of Dry Pegging Zone Soil on Pod Formation of Florunner Peanut1

Sexton¹,

Bennett²,

Boote

1997

Peanut Science

View full text Add to dashboard Cite

Peanut (Arachis hypogaea L.) fruit growth is sensitive to surface soil (0-5 cm) conditions due to its subterra nean fruiting habit. This study was conducted to deter mine the effect of soil water content in the pegging zone (0-5 cm) on peanut pod growth rate and development. A pegging-pan-root-tube apparatus was used to separately control soil water content in the pegging and root zone for greenhouse trials. A field study also was conducted using portable rainout shelters to create a soil water deficit. Pod phenology, pod and seed growth rates, and final pod and seed dry weights were determined. In greenhouse studies, dry pegging zone soil delayed pod and seed development. In the field, soil water deficits in the pegging and root zone decreased pod and seed growth rates by approximately 30% and decreased weight per seed from 563 to 428 mg. Pegs initiating growth during drought stress demonstrated an ability to sus pend development during the period of soil water deficit and to re-initiate pod development after the drought stress was relieved.

show abstract

Effect of Gypsum and Drought on Pod Initiation and Crop Yield in Early Maturing Groundnut (Arachis hypogaea) Genotypes

Cited by 13 publications

References 16 publications

Effect of pod zone moisture content on reproductive growth in three cultivars of peanut (Arachis hypogaea)

Effect of pod zone moisture content on reproductive growth in three cultivars of peanut (Arachis hypogaea)

Growth, yield and soil water extraction of irrigated and dryland peanuts in South Sulawesi, Indonesia

The Effect of Dry Pegging Zone Soil on Pod Formation of Florunner Peanut1

Contact Info

Product

Resources

About