96 extractive question-and-answer pairs built from Guidde for Seed Potatos, published by agritech.tnau.ac.in. Every answer is a verbatim span of text the source prints, and each row carries the passage it sits in, its offset in that passage, the source quote, the page and the location in the document, so any row can be checked against the original. 69 of the 96 pairs (71.9%) are explanatory questions and 27 restate a figure. 98.96% of rows pass the corpus quality gate.
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df = desidata.load("guide-for-seed-potatoes-question-and-answer-dataset")
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Usable for analysis, but expect some cleaning before you rely on it.
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First 10 of 96 rows
| question | answer | context | answer_start | question_type | knowledge_quality_score | source_quote | source_page | source_location | confidence | validation_status |
|---|---|---|---|---|---|---|---|---|---|---|
| What type of rot is characterized by a reddish-brown, granular appearance that can remain near the surface or reach the tuber's center? | a reddish-brown, granular rot which can remain close to the surface or progress to the centre of the tuber | Symptoms: Infected tubers usually develop a dark-brown, sometimes purplish, area on the tuber surface. The internal rot is a reddish-brown, granular rot which can remain close to the surface or progress to the centre of the tuber. Development of the rot is irregular and without a distinct leading edge; it can also be thread-like. | 123 | definition | 1.000 | The internal rot is a reddish-brown, granular rot which can remain close to the surface or progress to the centre of the tuber. | 30 | page=30,block=1 | 0.850 | valid |
| What issues are commonly linked to certain herbicides? | associated with herbicides including glyphosate, aminopyralid/clopyralid, dicamba, and acetolactate synthase inhibitors | Causes: Accidental spraying, contaminated spray tanks or spray drift of non-target plant protection products. Normally problems are associated with herbicides including glyphosate, aminopyralid/clopyralid, dicamba, and acetolactate synthase inhibitors. Control: Careful application of herbicides. | 132 | definition | 1.000 | Normally problems are associated with herbicides including glyphosate, aminopyralid/clopyralid, dicamba, and acetolactate synthase inhibitors. | 98 | page=98,block=1 | 0.850 | valid |
| What are the visual signs of spraing in tubers? | reddish-brown rings or lines on the tuber surface which extend as arcs of red-brown necrotic tissue through the tuber flesh | Status in UNECE: Not regulated, except that deformed tubers are regulated as an external defect. Recommended diagnostics: Visual observation of plants supported by ELISA test. Virus is erratically distributed within the plant, so test results from affected plants may be negative. ELISA testing of symptomatic and asymptomatic tubers is normally reliable. Symptoms: Symptoms occur the year following transmission and vary by variety. The severest effect is a shortening of the internodes at the top of the stem producing a stunted bunched top (mop head); a milder symptom is yellow chevrons or splashes on the leaves with no effect on plant growth. Usually only 1-2 stems show symptoms. Tubers may develop spraing (see also TRV): reddish-brown rings or lines on the tuber surface which extend as arcs of red-brown necrotic tissue through the tuber flesh. | 730 | definition | 1.000 | Tubers may develop spraing (see also TRV): reddish-brown rings or lines on the tuber surface which extend as arcs of red-brown necrotic tissue through the tuber flesh. | 52 | page=52,block=1 | ||
| What do the small brown spots in the tuber cortex indicate in potatoes affected by Meloidogyne species? | a mature female surrounded by a mass of brown eggs | Status in UNECE: Zero tolerance. Recommended diagnostics: Visual observation of tubers, microscopic examination of cut tubers, and PCR test. Symptoms: Several species of Meloidogyne cause symptoms on potatoes. Two of these are recognized in the Standard: M. chitwoodi and M. fallax. In growing plants, knots or galls develop on the roots. The galls are abnormal plant growths formed around feeding juvenile nematodes. Galls may be produced on the tuber surface, depending on the variety. Tuber galls appear as small, raised lumps above the developing nematodes, giving the skin a rough appearance. Galls may be grouped in a single area or scattered near the eyes. When infested tubers are cut, small brown spots may be seen within the tuber cortex. Each spot represents a mature female surrounded by a mass of brown eggs. Inoculum: Mainly spread by planting infested seed potatoes. | 770 | definition | 1.000 | Each spot represents a mature female surrounded by a mass of brown eggs. | 86 | page=86,block=1 | 0.700 | valid |
| What are the characteristics of tubers that are described as shrivelled? | Tubers which have lost their turgidity and have become wrinkled and pliable. | Status in UNECE: Tolerance for shrivelled tubers. Recommended diagnostics: Visual observation of tubers. Symptoms: Tubers which have lost their turgidity and have become wrinkled and pliable. Causes: Tubers become shrivelled when they are dehydrated. This can have a number of causes, including: excessive forced air ventilation; tuber moisture loss due to skin blemish diseases like silver scurf; long-term storage and sprouting. Control: Monitor tubers carefully during curing. Store tubers in appropriate conditions for the variety and duration of storage. Minimize skin blemish diseases and market at-risk stocks early. Shrivelled tubers | 115 | definition | 1.000 | Symptoms: Tubers which have lost their turgidity and have become wrinkled and pliable. Causes: Tubers become shrivelled when they are dehydrated. | 108 | page=108,block=1 | 0.700 | valid |
| What is Seed potato certification? | the process of assuring the quality of seed potatoes being marketed, usually done nationally according to regulated standards | Seed potato certification is the process of assuring the quality of seed potatoes being marketed, usually done nationally according to regulated standards. Planting healthy seed potatoes is a key factor in maximizing the production of usable potatoes for consumption or processing. | 29 | definition | 0.980 | Seed potato certification is the process of assuring the quality of seed potatoes being marketed, usually done nationally according to regulated standards. | 8 | page=8,block=1 | 0.850 | valid |
| What are the characteristics of leaf symptoms? | a distinctive pinching towards the tip of the leaflet, accompanied by purplish-red or yellow margins | Symptoms: Plant: mottling and distortion of leaves, and stunting of some or all stems. Leaf symptoms are a distinctive pinching towards the tip of the leaflet, accompanied by purplish-red or yellow margins. Tubers may develop spraing (see PMTV): brown, corky arcs and spots in the tuber flesh which are sometimes visible on the skin surface. | 105 | definition | 0.980 | Leaf symptoms are a distinctive pinching towards the tip of the leaflet, accompanied by purplish-red or yellow margins. | 56 | page=56,block=1 | 0.850 | valid |
| What are the symptoms of netted scab? | a superficial corky russeting of the skin | Sometimes symptoms can appear similar to powdery scab. Netted scab symptoms are a superficial corky russeting of the skin. Inoculum: Soil-borne. | 80 | definition | 0.980 | Netted scab symptoms are a superficial corky russeting of the skin. | 72 | page=72,block=1 | 0.850 | valid |
| What causes physiological cracks in tubers? | caused by rapid tuber expansion often triggered by an increase in soil moisture following a dry period | Causes: Growth cracks can be caused by a number of factors or combinations of these. Physiological cracks are caused by rapid tuber expansion often triggered by an increase in soil moisture following a dry period. Virus cracks: growth cracking can be associated with virus infection (mosaic viruses and PMTV) with tuber symptoms usually indistinguishable from physiological cracking. | 110 | definition | 0.980 | Physiological cracks are caused by rapid tuber expansion often triggered by an increase in soil moisture following a dry period. | 102 | page=102,block=1 | 0.850 | valid |
| What is another name for Sclerotinia sclerotiorum? | White mould / Stalk break | The disease is encouraged by prolonged high humidity in well-developed foliar canopies with wet leaves (e.g. sprinkler irrigation on fertile soils). The disease is more likely when potatoes follow oilseed rape (canola), which is an alternative host. Control: Avoid high-risk fields, plant following cereal crops, use varieties with an open canopy. Sclerotinia sclerotiorum White mould / Stalk break Sclerotinia sclerotiorum - © SASA | 373 | definition | 0.980 | Sclerotinia sclerotiorum White mould / Stalk break Sclerotinia sclerotiorum - © SASA | 38 | page=38,block=1 | 0.700 | valid |
Read straight from the file — download or use the API URL for the full dataset.
| 0.700 |
| valid |