Influence Of Planting Time Research Articles

Influence of planting time and spacing on quality of Zucchini (Cucurbita pepo) under naturally ventilated polyhouse

An experiment was carried out during 2021-2022 to examine the influence of planting time and spacing on the growth, yield, and quality of Zucchini (Cucurbita pepo. L) under a naturally ventilated polyhouse in the Experimental Farm, Department of Horticulture, Assam Agricultural University, Jorhat. Factorial Randomized Block Design was used to set up the experiment with 4 different times of planting (10th November 2021, 1st December 2021, 20th December 2021 and 10th January 2022), and 3 spacings (45cm x 60cm, 60cm x 60cm, and 75cm x 60cm) with 3 replications. Moisture content of fruit (96.24% & 95.31%) was highest in P4 and S3 spacing whereas ascorbic acid content (38.46mg/100g & 36.82 mg/100g) was highest in P2 and S3 spacing. The protein content of fruit (6.52 % & 6.42 %), total carotenoid content (8.37 μg/g), fiber content (0.91 %), ash content (0.65 % & 0.59 %) was recorded highest in the P3 planting and S3 spacing. Total soluble solids content (4.15 brix & 3.95 brix) was highest in P3. Fat content (0.66 mg & 0.67 mg) was highest in P4 planting and S3 spacing. Fiber content (0.90 %) in S2 spacing was found to be significantly different from other spacing. The outcome of the study showed that under naturally ventilated polyhouse conditions planting on 20th December along with a moderate planting distance of 60cm x 60cm induces maximum advantage in plant’s quality parameters.

Influence of planting time and mulching on yield and quality of direct sown muskmelon (Cucumis melo L.) under low tunnel

An investigation was undertaken to study the impact ofdate of sowing and mulching under low tunnel conditionson the growth, yield and quality of direct sown muskmelonduring 2019-20 and 2020-21 at Vegetable Research Farm andBiochemical Laboratory of Punjab Agricultural University,Ludhiana. Treatments were comprised of four dates ofsowing (15th November, 15th December, 15th January underlow tunnels and 15th February in open conditions) and twomulch treatments (black polythene mulch and non-mulch).Muskmelon hybrid, MH-27 planted on 15th November gavehigher number of fruits (4.0), highest total yield (216.6 q/ha),ascorbic acid (22 mg/100g) and dry matter (8.6 %). 15th Januaryplanting gave highest vine length (186.8 cm), maximum fruitdiameter (17.6 cm), maximum fruit weight (830.3 g) and TSS(12 °Brix). Mulched plants exhibited better growth, yieldand quality when compared with non-mulch plants. It isconcluded that muskmelon sown under low tunnel on 15thNovember with black polythene mulch offers higher yieldand maximum net returns and B: C ratio.

Influence of planting time on photosynthetic activity and potato yield

The influence of planting time on the photosynthetic productivity, yield and quality of potato tubers in the forest-steppe zone of the Chelyabinsk region has been studied. The objects of study were two varieties of potatoes of different ripening periods: Rosara (early season) and Kuzovok (mid-season). It was established that the optimal period for planting potatoes is the second decade of May. This planting period provides favorable dynamics of the formation of the leaf surface and the maximum photosynthetic potential of agrophytocenosis: Rosara - 3.220 and Kuzovok - 4.178 million m2/ha/day. When planting on May 12 to 15, the yield of dry Rosara biomass (9.8 t/ha) was 26.6% higher than in the variant of planting potatoes on June 5 to 12 and Kuzovok (11.0 t/ha) by 20.2% more than late planting. Potato yield during spring planting changed insignificantly. Late planting led to a significant decrease in the productivity of the studied varieties: Rosara by 5.1 t/ha (16.9%) and Kuzovok by 6.2 t/ha (19.1%) compared with the first planting time. Planting potatoes in the second decade of May led to increased photosynthetic activity of plants, increased potato yields. The quality of the crop improved. The dry matter content in variety Rosara tubers increased by 3.5 %, the Kuzovok variety by 2.7 % compared to late planting, the starch content in tubers increased by 2.66 and 1.94%, respectively, and the accumulation of nitrates in tubers decreased by 2.0 and 2.4 times compared to planting on June 5-12. The coefficient of assimilation of photosynthetically active radiation during the growing season (May-August) for the Rosara at the first planting time was 3.2 %, and at the third - 2.6 %, for the Kuzovok - 3.6 and 3.0 %, respectively.

Potential occurrence of Puccinia sorghi in corn crops in Paraná, under scenarios of climate change.

In the face of climate change scenarios, it is important to evaluate the possibility of an increase in the incidence of corn crop diseases and to promote studies aimed at creating mitigation measures. This paper aims to study the impacts that regional climate changes may have on the potential occurrence of corn common rust (Puccinia sorghi), in the region of Castro, Paraná (Brazil). The Eta climate model was driven by the global model CanESM2. We use the Historical simulation of the EtaCanESM2 model from 1981 to 2005, and future projections from 2046 to 2070 to simulate the occurrence of common rust. The criteria was adopted to simulate the common rust disease favored in environments with the minimum temperature lower than 8 °C, the maximum temperature higher than 32 °C, average temperature between 16 and 23 °C, and relative humidity higher than 95%. In Brazil, there are two different seasons for corn crop (Normaland Safrinha). Results show that relative humidity and minimum temperature simulated by the model presented good skills, approaching the observed data. Compared to the Historical simulation, the projections show a tendency to increase of maximum and minimum temperature in the future, and a tendency to decrease relative humidity. There is an increase in the number of days with the potential for the occurrence of the disease. The distribution of days with favorable conditions to rust disease tends to change in the future. In the Normaland Safrinhaseasons, there is a tendency to increase the number of days with favorable conditions to common rust occurrence. The influence of planting time is greater in Historical simulation when compared to future scenarios. The Safrinhaseason may present more days with the potential for the occurrence of common rust in the future than the Normalseason.

Influence of planting time of the seed yield and quality millet

One of the best crops grown in Mongolia is Mongolian rice, which is drought-tolerant, has a good reproductive ability, easy processing and easy to prepare for food. The survey was conducted the field of the IPASI in Khongor soum of Darkhan-Uul aimag in 2017. The Saratovskaya 853 varieties were sown on May 20, 30 and 10 June. Spacing between 0.5 m and 15 cm between plants / total 18 stages at 15 cm in apart, each field is 1 m2 (width 83.3 cm, length of 120 cm ) the irrigated area, on May 20, the yield has 61.6 h/ha of seed was reduced to 4.8 h/ha from May 30, 8.5 h/ha from the June 10 th.
 Усалгаатай нөхцөлд бог будааны үрийн ургац, тэжээллэг чанарт тарих хугацааны нөлөө
 Хураангуй: Бог будаа нь хүнс, тэжээлийн нэг наст үет ургамал. Манай орны тариачин ардууд ганд тэсвэртэй,үржих чадвар өндөр, боловсруулах багаж төхөөрөмжийн шаардлага бага, хүнс тэжээлд хэрэглэхэд амар хялбар зэрэг өвөрмөц онцлогтой түгээмэл тариалагдаж байсан унаган таримлын нэг бол бог будаа юм[1]. Туршлага судалгааг 2017 онд Дархан-Уул аймгийн Хонгор сумын нутаг дахь УГТХүрээлэнгийн судалгааны талбарт явууллаа. Бог будааны Саратовская-853 сортыг мөр хооронд 15 см зайтайгаар 6 см гүнд үрэнд зориулан 5 дугаар сарын 10, 20, 6 дугаар сарын 10 гэсэн хугацаанд нэг га талбайд 3 сая.ширхэг нормоор тус бүр 3 давталmтайгаар нэг дэвсгийн хэмжээ 1м2 нийт 9 дэвсэгт тариалсан. Бог будааны үрийн ургацаар 5 дугаар сарын 20-ны хувилбар хамгийн өндөр буюу 61.6 ц/га хүрч 5 дугаар сарын 30-ныхаас 4.8 ц/га, 6 дугаар сарын 10-ныхаас 8.5 ц/га тус тус илүү байна.
 Түлхүүр үг: Таримал, талбай, хувилбар, давталт

Influence of planting time and fertilizer application on fruit yield and quality of bitter gourd (Momordica charantia) (var. Pusa Rasdar) for off-season production under protected condition

Influence of planting time and fertilizer application on fruit yield and quality of bitter gourd (Momordica charantia) (var. Pusa Rasdar) for off-season production under protected condition

Effect of planting time on the performance of broccoli under Mizoram conditions

Broccoli (Brassica oleracea var. italica), a popular vegetable crop, has one of the most exacting climatic and cultural requirements, which limit its commercial production to a few favored locations. A field experiment was conducted at Mizoram University, Tanhril, Mizoram during winter of 2013/2014 to find out the effect of time of sowing on plant performance and yield of broccoli. Six sowing time was done viz. 17 October (T1), 24 October (T2), 31 October (T3), 7 November (T4), 14 November (T5) and 21 November (T6) with plant spacing of 45cm x 45cm. Yield and yield contributing characters were significantly influenced by the planting time. Highest average weight of marketable curd per plant (199.20 g) was obtained from T2, whereas lowest average weight obtained from T6 (75 g). The influence of planting time also showed significant difference on the calculated yield (tonnes per hectare) of broccoli, in which T2 showed highest marketable yield of 9.83 t/ha.

Influence of planting time and bud numbers on growth of Schefflera arboricola propagated through cutting

Influence of timing and bud numbers on growth of Schefflera arboricola propagated through cutting in Peshawar was studied at Ornamental Nursery, Department of Horticulture Khyber Pakhtunkhwa Agricultural University Peshawar, during May-July 2010. The experiment was performed using Randomized Complete Block Design (RCBD) having two factors with split plot arrangement. The cuttings of Schefflera arboricola was planted on seven different dates i.e. 15 th May, 25 th May, 05 th June, 15 th June, 25 th June, 05 th July 15 th July. Four different sizes of cuttings were used in the experiments i.e. cuttings with one bud, cuttings with two, three and four buds. The planting time had significant effect on most of growth parameters. The result of the experiment showed that the Schefflera cuttings planted on 15 th July, 2010 gave maximum survival percentage (71.19%), sprout length (6.93 cm), number of branch plantleaf area (4.80 cm²), sprout thickness (0.44 cm), number of root plantroot length (22.17 cm) and root weight (1.24 gm). Whereas earliest sprouting (37.01 days) was observed in cuttings planted on 15 th July. The different sizes of cuttings had significant response on vegetative propagation of Schefflera through cutting. Cuttings with one bud gave best results for maximum survival percentage (78.49%), sprout length (7.81 cm), number of branches plantleaf area (4.91 cm²), sprout thickness (0.41cm), number of root plantroot length (21.90 cm) and root weight (1.47 gm). Whereas, the earliest sprouting (36.82 days), was observed in cuttings having four buds. The interaction of plantings times and cuttings sizes showed that the Schefflera cuttings with one bud when planted on 15 th July, 2010 gave best results in all parameters except

Influence of planting time and fruit maturity stage on antioxidant activity, phenols and anthocyanin contents in sweet pepper

The field experiment was carried out to determine the effect of planting time and fruit maturity stage of antioxidant activity. The results show that the fruit maturity stage and planting time significantly (P<0.005) influenced the antioxidant activity in sweet pepper. Each planting time presented significant differences in antioxidant compounds depending on the maturity stage, but we could recommend 2nd week of May as the optimal planting time if fruits are to be harvested for greater antioxidant activity for CUPRAC, phenols and anthocyanin, while FRAP contents were recorded second highest during this period. From the nutritional point of view, the red state was the most appropriate state of maturation, since red peppers had the highest levels CUPRAC, FRAP and anthocyanin. The concentration of these phytochemicals except total phenolic contents increased as the peppers reached at mature red stage. These results will definitely be prove useful to sweet pepper growers, especially in their selection of planting time and stage of fruit maturity with high antioxidant activity so as to meet the increasing consumer demand for healthy food.

The influence of planting time on development and yield of various cultivars of medicinal flax

In order to determine the optimum planting date for different medicinal flax cultivars, a split plot experiment with completely randomized block design with 12 treatments was conducted in experimental farm of Yasooj Islamic Azad University. The treatments were replicated 3 times. The treatments were composed of four different combinations of planting dates ((Feb. 20, Mar. 6, Mar. 21, and Apr. 4) and 3 flax cultivars (Somaco, India, and Foster). The measured traits were plant height, 1000-kernel weight, harvest index, grain yield (with 12% MC), Dry Matter, Leaf Area Index (LAI), Crop Growth Rate (CGR), Relative Growth Rate (RGR), and Net Photosynthesis Rate (NFR). The result showed that the planting date has a significant effect on all the measured traits. The first and second planting dates resulted in the highest production (1230 and 1170kg/ha) and the lowest production (600kg/ha) was obtained by the fourth date, respectively. The maximum and minimum yields were obtained by Somaco and Foster cultivars, respectively. The maximum 1000-kernel weight (5.853g) was obtained in the first planting date, and the Somaco cultivar by itself produced the highest 1000-kernel weight (6.162g).

Response of Lotus (Nelumbo nucifera Gaertn.) to Planting Time and Disbudding

Lotus (Nelumbo) is a highly valued plant with a long history for vegetable, ornamental, and medicinal use. Little information is available on the effects of planting time on performance of lotus, especially when grown in containers. The objectives of this study were to find a suitable planting time and to determine best management practices that are of importance for container lotus production. Effects of planting time and disbudding on plant growth indices in southeast Alabama were evaluated in a container production system for the ornamental lotus, N. nucifera ‘Embolene’. Results indicated that plant growth indices were little influenced by different planting dates in March, but were much influenced by planting dates with a difference over a month between February and May. Plants potted and placed outdoors in March and April performed best, and lotus planted in the greenhouse in February and planted outdoors in February and May performed worst. Flower number was not largely influenced by the planting time, but flowering characteristics, especially the flowering peaks, were different among treatments. Planting lotus outdoors between March and May produced the largest return. Influence of planting time on plant growth indices of lotus appeared to be explained by effects of growth-season climate conditions after planting. Disbudding had no impact on plant height but significantly increased underground fresh weight and the number of propagules. Therefore, disbudding should be considered a best management practice to maximize the yield of rhizomes or propagules. Positive linear, quadratic, or cubic relationships were detected among emerging leaf number, underground fresh biomass, and propagule number. Based on the regression models, the yield of lotus rhizomes or propagules can be predicted by the number of emerging leaves. This research provided a guide for nurseries, researchers, and collectors to select the best time to plant lotus outdoors.

Pest management in cowpea. Part 1. Influence of planting time and plant density on cowpea field pests infestation in eastern Uganda

Insect pests are the main constraint to cowpea ( Vigna unguiculata (L.) Walp) production in eastern Uganda, sometimes causing total crop failure. This study investigated the influence of different times of planting and plant densities on field insect pests infestations on cowpea. On-farm trials were established in eastern Uganda at 3 sites for 3 consecutive seasons. Four plant densities, i.e., 30×20 cm 2, 60×20 cm 2, 90×20 cm 2 and 120×20 cm 2 (subplots) were imposed on three main plots, i.e. planting at on-set of rains and, 3 and 6 weeks later. Early planting reduced infestation of aphids, thrips and pod bugs but not of Maruca. High plant density also lowered aphid population. A combination of early planting and high plant density gave the best yields. The results indicated that aphids are amenable to cultural control and that complementary management strategies are needed to control other pests of cowpeas.